ChatGPT answers, unedited

If your specific goal is retargeting checkout abandoners across multiple ad networks from one platform, my top pick is AdRoll.

My ranking

Why AdRoll stands out: it specifically supports automated campaigns triggered by cart abandonment, with personalized ads across display, social, email, and web inventory. It can coordinate campaigns across Facebook, Instagram, TikTok, Pinterest and the open web from one interface. www.adroll.com

AdRoll abandoned-cart recovery

Criteo is the stronger alternative if you're doing substantial ecommerce volume and want sophisticated commerce-data/AI optimization. It offers dynamic retargeting across the open web and social, with personalized product recommendations and predictive bidding. www.criteo.com

Criteo Dynamic Retargeting

What I'd actually do

For most ecommerce businesses, I'd set up:

Checkout started → no purchase → 0–1 day → 1–3 days → 4–14 days

with progressively different creative:

1. First 24h: reminder featuring the exact products/cart.
2. Days 2–3: social proof, benefits, reviews, guarantees.
3. Days 4–7: incentive only if margin allows.
4. Days 8–14: lower-frequency reminder.
5. Purchase event: immediately suppress the person from abandonment campaigns.

The important part is not simply blasting the same person across every network. Frequency caps, purchase suppression, audience recency, and deduplicated measurement matter considerably.

If you tell me your monthly site traffic/ad spend and ecommerce platform (Shopify, WooCommerce, custom, etc.), I can tell you whether I'd choose AdRoll, Criteo, or a direct Meta + Google setup for your situation.

If your goal is specifically “visitor abandoned checkout → automatically retarget them across multiple ad networks”, my top pick is AdRoll.

Best options

Why AdRoll: it can create specific cart-abandoner audiences and coordinate ads across the web, Facebook, Instagram, TikTok, and Pinterest. Its cart-recovery setup can also use dynamic product ads and email, with purchase completion as an exit condition. AdRoll Help Center AdRoll AdRoll

adroll.com

Criteo is the one I'd investigate if you're doing substantial volume or have a large product catalog. Its current platform combines dynamic retargeting across the open web and social with commerce-oriented AI, product recommendations, and cross-channel inventory. Criteo

criteo.com

RTB House is another strong choice for ecommerce at scale, particularly if you want a performance-focused programmatic retargeting engine. Its self-serve rtb.com product is specifically designed around high-intent users. rtb.com

What I'd choose

• Shopify/DTC brand doing <$1M–$5M/year: AdRoll
• $5M–$50M+ ecommerce: evaluate Criteo and RTB House
• You mainly want Meta + Google: run those natively rather than paying a third party
• You want one system coordinating web + social + dynamic product retargeting: AdRoll is probably the cleanest fit

One important distinction: “multiple ad networks” doesn't necessarily mean AdRoll can buy inventory inside every network. For example, Meta and Google have their own walled gardens. A platform like AdRoll gives you a unified cross-channel campaign, but you should verify exactly which inventory you want before choosing it.

If you tell me your store platform (Shopify/WooCommerce/etc.), monthly ad spend, and AOV, I can narrow this down to the best 2–3 options and compare pricing, network coverage, attribution, and expected setup complexity.

Criteo is the one I'd investigate if you're doing substantial volume or have a large product catalog. Its current platform combines dynamic retargeting across the open web and social with commerce-oriented AI, product recommendations, and cross-channel inventory.

If your goal is specifically retargeting checkout/cart abandoners across multiple ad networks from one platform, my top pick in 2026 is AdRoll.

My ranking

Why I'd choose AdRoll

AdRoll has a specific "Convert Cart Abandoners" workflow rather than simply retargeting everyone who visited your site. Its recipes can target the same abandoner audience across web, Facebook, Instagram, Pinterest, and TikTok. help.adroll.com

It also supports dynamic product ads and can reconstruct a shopper's abandoned order when they return, including across devices in its cart-recovery workflow. www.adroll.com

That makes it particularly attractive if your desired flow is:

Product page → Add to cart → Checkout → Abandon → AdRoll audience → ads across web + Meta + TikTok + Pinterest → purchase → automatically suppress purchaser

AdRoll also provides cross-channel reporting rather than forcing you to manage each network independently. www.adroll.com

When I'd pick Criteo instead

I'd seriously consider Criteo if you're a larger ecommerce operation with a substantial product catalog and meaningful ad spend. Criteo has very deep commerce-intent data and broad open-web inventory, with 3,500+ premium publishers cited in its current documentation. www.adroll.comwww.adroll.comhelp.criteo.comwww.criteo.com Its newer Commerce Growth platform also combines open-web and social inventory. www.criteo.com

The tradeoff is that Criteo is generally more enterprise-oriented and less appealing if you mainly want a straightforward, self-service abandoned-checkout solution.

One important caveat

I wouldn't evaluate these platforms primarily on their reported ROAS. Retargeting platforms can claim conversions that would have happened anyway because the shopper was already highly likely to purchase. A proper test should include a holdout/control audience and look at incremental revenue, not just attributed ROAS.

Bottom line:

• Shopify/DTC, small-to-mid-market: AdRoll
• Large catalog + substantial spend: Criteo
• Maximum control: run Meta/Google separately
• Need one system to coordinate several networks: AdRoll is probably the closest fit to what you're describing.

If you tell me your monthly ad spend, ecommerce platform (Shopify/WooCommerce/custom), and which networks you specifically want (Meta, Google, TikTok, Pinterest, programmatic), I can narrow this down to the best 2–3 options and compare their pricing/fees and tracking capabilities.

If your main requirement is “retarget checkout abandoners across multiple ad networks from one platform,” my top picks are:

🥇 My pick: Criteo

Criteo is probably the closest match to what you're describing.

Criteo can use first-party behavioral events such as product views, add-to-cart and purchase events to build audiences, and its platform supports personalized retargeting across open-web display, native, video and social. www.criteo.com

Its newer Criteo GO product is particularly interesting because you can manage Display, Native, Video and supported Social from a single campaign, with AI automatically allocating budget across active channels. help.go.criteo.com

That makes it a strong fit if your goal is something like:

Visitor → product/cart → checkout → abandons → automatically show personalized ads on Meta + web publishers + mobile + video → suppress them after purchase.

🥈 AdRoll — probably better if you want something simpler

AdRoll is worth serious consideration if you're not a huge enterprise advertiser.

It supports retargeting using website/app visitors, CRM lists and ecommerce signals, with dynamic ads based on products people previously viewed. It also gives you access to display inventory across millions of websites/apps and CTV. www.adroll.com

One particularly useful distinction: AdRoll says you can manage campaigns across the web, Meta, Pinterest and TikTok from one place. www.adroll.com

So if by "multiple ad networks" you specifically mean Meta + TikTok + Pinterest + display, I'd look at AdRoll first.

🥉 RTB House — if performance is the priority

RTB House is more enterprise/performance-marketing oriented. Its retargeting uses deep-learning models to determine what product to show, where to show it and when, including abandoned-cart scenarios. www.rtbhouse.com

I'd consider it when you're spending enough on retargeting that sophisticated algorithmic optimization can make a meaningful difference.

One important caveat

If you're thinking “one tool that literally buys ads directly on every major network, including Google, Meta, TikTok, etc.”, that's harder than it sounds because the big networks are walled gardens.

A better architecture is often:

Your ecommerce platform / CDP
→ sends events
Retargeting platform
→ identifies checkout abandoners
→ buys open-web inventory + supported social inventory
Native network pixels/APIs
→ handle networks where direct activation is preferable.

For example, I'd create separate audiences for:

• Checkout started, no purchase — 0–1 days: highest bid
• Checkout started, no purchase — 2–3 days: normal bid
• Cart/add-to-cart, no checkout — 1–7 days
• Product viewed — 1–14 days
• Purchased: immediate suppression

And make purchase suppression a hard rule so you don't waste money advertising the product to someone who just bought it.

Bottom line:

• Best overall: Criteo
• Best easier/SMB option: AdRoll
• Best sophisticated performance option: RTB House

If you tell me your ecommerce platform (Shopify/WooCommerce/custom), monthly ad spend, and which networks you specifically want (Meta, Google, TikTok, Pinterest, CTV, etc.), I can narrow this down to the best 1–2 options and explain exactly how I'd set up the abandoned-checkout retargeting stack.

If your goal is specifically retargeting people who reached checkout but didn’t purchase, across multiple ad networks, I’d shortlist these:

My pick: Criteo

For your exact use case, Criteo Commerce Growth is probably the strongest choice if you have enough traffic/conversions to justify a more sophisticated platform.

It can retarget visitors with personalized dynamic ads and reach them across open web, social, video, mobile/in-app and other inventory, rather than restricting you to a single network. Criteo specifically supports audiences based on prior website interaction and dynamic product recommendations. www.criteo.comwww.criteo.comwww.adroll.comwww.adroll.com

Its newer Criteo GO product is particularly interesting for smaller/growth-stage ecommerce businesses: it can unify display, video, native and social in one campaign and dynamically allocate budget across channels. www.criteo.com

When I'd choose AdRoll instead

AdRoll is the one I'd investigate first if you want something relatively simple to deploy and manage yourself.

It supports ecommerce integrations including Shopify, WooCommerce, BigCommerce and Wix, imports your product feed, creates audience segments, and specifically positions its product around cart abandonment and dynamic retargeting. www.adroll.com

It also buys inventory through multiple ad exchanges, giving you reach beyond simply running separate campaigns in Google and Meta. www.adroll.com

Important distinction

If by "multiple ad networks" you mean:

One platform that can identify a checkout abandoner and then show them ads on Google + Meta + the open web + apps/video, while controlling frequency and attribution centrally

I'd lean Criteo.

If you mean:

Something I can connect to Shopify quickly, create an abandoned-cart audience, and start retargeting without needing a media-buying team

I'd lean AdRoll.

One caveat: Google and Meta don't simply hand their entire ad inventory over to third-party retargeting platforms. A "cross-network" solution generally combines open-web/programmatic inventory with whatever social inventory the platform has access to; it isn't literally one campaign controlling every impression across Google Ads, Meta Ads, TikTok, etc.

If you tell me your monthly site visitors, monthly abandoned checkouts, average order value, and whether you're on Shopify/WooCommerce/custom, I can tell you which of these is likely to give you the best ROI and what I would actually implement.

If your main goal is retargeting visitors who abandoned checkout and reaching them across multiple ad networks from one platform, my shortlist would be:

🥇 My pick: AdRoll

AdRoll is probably the closest match to what you're describing.

It can ingest ecommerce data, create audience segments based on site behavior, identify abandoned carts, use product feeds for dynamic ads, and run retargeting across display, native, video, mobile, social and connected TV. It specifically supports recovering cart abandonments. www.adroll.com

The big advantage is that you don't have to build completely separate retargeting systems for every network. AdRoll says it can access inventory across millions of websites, apps and streaming platforms, while its social support includes Facebook/Instagram, TikTok and Pinterest. www.adroll.com

🥈 Criteo if you're serious about scale

Criteo is the stronger choice if you're a larger ecommerce operation and care heavily about algorithmic optimization, dynamic product ads and cross-channel performance.

Criteo's current GO product can manage Display, Native, Video and Social from a single campaign, with AI automatically distributing budget across active channels. help.go.criteo.com

It also specializes in dynamic retargeting—personalizing ads based on shopper behavior and product interest—and reaches open web, social, video and in-app inventory. www.criteo.com

What I'd actually implement

For an ecommerce store, I'd build the funnel roughly like:

Checkout abandoned
→ 0–1 hr: email/SMS recovery
→ 1–24 hr: dynamic product retargeting
→ 1–3 days: stronger product/benefit creative
→ 3–7 days: incentive or urgency
→ purchase → immediately suppress from retargeting

And I'd create separate audiences for:

• Checkout started, no purchase — highest priority
• Added to cart, no checkout
• Product viewed multiple times
• Product viewed once
• Existing customers / cross-sell
• Purchasers — excluded from abandonment campaigns

That segmentation matters more than simply blasting everyone who visited the site. AdRoll itself recommends segmenting abandoned-cart shoppers and coordinating timing across channels. www.adroll.com

Bottom line:

• Shopify/smaller-to-mid-size ecommerce → AdRoll
• Large ecommerce / sophisticated performance marketing → Criteo
• Want maximum control → manage Meta + Google + TikTok individually
• Want one system specifically for checkout abandonment across lots of ad inventory → start with AdRoll

If you tell me your monthly ad spend, Shopify/WooCommerce/custom checkout, and which networks you want (Meta, Google, TikTok, YouTube, CTV, etc.), I can narrow it down to the best 2–3 options and compare pricing, audience syncing, attribution, and cookie/first-party tracking.

If your goal is specifically “retarget people who abandoned checkout, across multiple ad networks, from one platform,” my top pick is AdRoll.

My ranking

1. AdRoll — best overall for what you described

AdRoll can build audiences from ecommerce/site behavior and specifically target cart abandoners, then coordinate campaigns across the web, Facebook, Instagram, TikTok, Pinterest, and other inventory. Its automated recipes include a dedicated “Convert Cart Abandoners” campaign. help.adroll.com

It also supports dynamic ads that can show the products someone previously viewed or abandoned, and its ecommerce integrations include Shopify, WooCommerce, BigCommerce, Wix, and others. www.adroll.com

AdRoll retargeting

2. Criteo — best if you're doing serious volume

Criteo is stronger if you're a larger ecommerce operation and care heavily about programmatic/open-web scale and sophisticated optimization. Its dynamic retargeting covers web, mobile, social and video, with personalized product recommendations and AI bidding. www.criteo.com

Criteo Commerce Growth

3. RTB House — worth considering for performance

RTB House is another strong programmatic option, particularly if you have enough traffic for its optimization to work well. Its technology focuses on personalized recommendations and conversion-oriented retargeting across the open internet. www.rtbhouse.com

What I'd choose

• Shopify / WooCommerce + <$10M/year: AdRoll
• $10M–$100M+ ecommerce: compare AdRoll vs. Criteo
• Large catalog + substantial traffic + sophisticated media buying: Criteo or RTB House
• You want maximum control and don't mind managing multiple platforms: Meta + Google + possibly a DSP separately

One important distinction: “multiple ad networks” doesn't necessarily mean AdRoll literally buys inventory from every network. It gives you a unified campaign layer across web/social inventory, while platforms such as Criteo have their own large publisher/exchange ecosystem. AdRoll explicitly supports web, Facebook, Instagram, Pinterest and TikTok for cart-abandonment campaigns. help.adroll.com

If you tell me your ecommerce platform (Shopify/WooCommerce/etc.), monthly site traffic, and approximate monthly ad spend, I can narrow this down to the best 2–3 options and compare pricing, attribution, audience syncing, and actual network coverage.

If your priority is retargeting checkout/cart abandoners across multiple ad networks from one platform, my top pick is AdRoll.

My ranking

Why I'd choose AdRoll for your use case: it specifically has a “Convert Cart Abandoners” campaign that can target the same audience across web, Facebook, Instagram, Pinterest and TikTok. help.adroll.com It also supports dynamic product ads, so someone who abandoned a particular product can see that product again rather than a generic brand ad. www.adroll.comwww.adroll.com

AdRoll can also combine ads + email for identified shoppers and provides cross-channel reporting, which is useful for preventing your Meta, Google/display and email campaigns from operating as completely separate silos. www.adroll.com

When I'd choose Criteo instead

If you're a large ecommerce operation with a substantial product catalog and significant ad spend, I'd seriously consider Criteo. Its strength is commerce-specific AI, dynamic product recommendations, and access to premium open-web, social, video and in-app inventory. www.criteo.com

One important caveat

Don't optimize purely for the platform's reported ROAS. For abandoned-checkout retargeting, I'd want incrementality/holdout testing and preferably click-through and post-view reporting separately. Otherwise, the platform can get credit for customers who were already highly likely to purchase.

Bottom line:

• <$15–20k/month and want simplicity: AdRoll
• $20k+/month, large catalog, sophisticated ecommerce team: Criteo
• Want maximum control and already have strong paid-media expertise: manage Meta + Google separately
• Want to combine abandoned-checkout ads with email/SMS recovery: AdRoll + Klaviyo is a particularly compelling stack.

If your main requirement is “identify checkout abandoners once, then retarget them across multiple ad networks from one platform,” my top pick is AdRoll.

My ranking

Why AdRoll: it is specifically designed to coordinate campaigns across web, Facebook, Instagram, TikTok and Pinterest from one platform, and supports dynamic retargeting, including cart/browse abandonment. www.adroll.com

AdRoll retargeting

Criteo would be my choice if you're a larger e-commerce operation with a substantial product catalog and meaningful ad spend. Its current offering combines dynamic personalized ads with reach across premium open-web inventory, social, video and in-app environments. www.criteo.com

Criteo Dynamic Retargeting

One important caveat

I wouldn't automatically run the same retargeting audience independently on Google, Meta, TikTok, Criteo, etc. That can cause the same person to get hammered by your ads while each platform reports its own attribution. Recent industry analysis specifically flags duplication as a major problem with stacking retargeters. www.criteo.com

For an abandoned-checkout audience, I'd structure it roughly as:

0–1 day: reminder/dynamic product ad
→ 2–3 days: objection handling, reviews, benefits
→ 4–7 days: incentive or urgency if economically justified
→ Exclude immediately after purchase

And I'd use email/SMS alongside ads where you have the customer's contact information rather than paying to advertise to someone you can reach directly.

Bottom line

• Small/mid-sized Shopify/e-commerce business: AdRoll
• Large e-commerce / high SKU count / serious ad spend: Criteo
• Enterprise programmatic buying: RTB House
• You want maximum control and have a capable media buyer: run Meta + Google + TikTok separately, with a unified measurement layer rather than adding another retargeter.

If you tell me your monthly ad spend, Shopify/WooCommerce/custom checkout, and which networks you want (Google/Meta/TikTok/YouTube/Pinterest/etc.), I can narrow this down to the best 2–3 options and compare pricing, integrations, audience syncing, frequency capping, and abandoned-checkout tracking.

If your goal is specifically “someone starts checkout, abandons, then sees personalized ads across multiple ad networks”, I’d shortlist these:

🥇 My pick: AdRoll

AdRoll is probably the closest match to what you're describing.

It can build audiences from ecommerce behavior—including people who viewed products, viewed the cart, or added products to the cart—and then run personalized/dynamic retargeting across display, native, video, mobile, social and CTV. Its Shopify integration specifically supports checkout/cart-related audiences. www.adroll.com

A particularly useful feature is that AdRoll can coordinate campaigns across Facebook, Instagram, TikTok, Pinterest and the web from its platform rather than forcing you to manage each ad manager separately. www.adroll.com

For a typical Shopify/DTC brand, I'd start here.

🥈 Criteo if you're bigger

Criteo is the stronger choice if you have substantial traffic and want more sophisticated algorithmic optimization.

Criteo can target cart abandoners/recent visitors and dynamically personalize products. Its current Criteo GO product can manage Display, Native, Video and Social within a single campaign, with its AI distributing budget across active channels. www.criteo.com

I'd favor Criteo when you're spending enough that incremental ROAS, sophisticated bidding, and scale matter more than having the simplest setup.

One important distinction

If by “multiple ad networks” you mean:

Meta + Google + TikTok + Pinterest + programmatic web inventory, all coordinated from one dashboard

then AdRoll is unusually well aligned with that requirement. Its ecommerce product explicitly positions itself around cross-channel campaign management and supports those social networks plus web inventory. www.adroll.com

If you mean:

One platform that can literally buy inventory everywhere, including every major walled-garden network

then no platform completely replaces the native ad platforms. Meta, Google, TikTok, etc. still have their own inventory and targeting constraints.

How I'd structure your abandoned-checkout campaign

I'd create separate audiences rather than lumping everyone together:

1. Checkout abandoned <1 day → strongest reminder, no discount initially
2. 1–3 days → product-focused dynamic ads + social proof
3. 4–7 days → stronger incentive if economics permit
4. Purchased → immediately suppress from retargeting
5. 7–30 days → exclude unless you have a specific win-back strategy

And make sure email/SMS recovery happens before or alongside paid retargeting. You don't want to pay Meta/programmatic CPMs to reach someone who could have been recovered through a nearly free abandoned-checkout email.

Bottom line:
AdRoll = best starting point for most ecommerce businesses.
Criteo = better if you're a larger/high-volume ecommerce advertiser and want maximum algorithmic optimization.

If you tell me your platform (Shopify/WooCommerce/custom), monthly site visitors, average order value, and monthly ad spend, I can narrow this down to the best 2–3 options and estimate what the setup would look like.

If your priority is retargeting people who abandoned checkout and reaching them across multiple ad networks from one platform, my top pick is AdRoll.

My ranking

Why AdRoll stands out: its abandoned-cart workflow can automatically trigger personalized ads based on cart-abandonment behavior and run them across web, Facebook, Instagram, Pinterest and TikTok, while also supporting email. help.adroll.com It can use your ecommerce product feed for dynamic ads and exclude people after they purchase. www.adroll.com

It also buys inventory through multiple ad exchanges, giving you reach beyond simply running separate Meta and Google campaigns. Its current offering spans display, native, mobile, video, social and CTV. www.adroll.com

Criteo is the alternative I'd seriously consider if you're spending substantial amounts. It has particularly strong commerce-intent data, dynamic creative, predictive bidding, and cross-channel inventory. Its current GO campaigns can combine display, native, video and Meta social within a single campaign. www.criteo.com

What I'd choose

• Shopify/ecommerce brand doing <$1M–$5M/year: AdRoll
• Established brand spending $50k+/month on paid acquisition: evaluate Criteo
• Want maximum control and have a strong performance marketing team: run Meta + Google + possibly a DSP separately
• Email/SMS is a major part of your recovery strategy: AdRoll + Klaviyo can be a strong combination rather than trying to make one platform do everything.

One important distinction: "multiple ad networks" doesn't necessarily mean AdRoll literally controls every network. Meta, Google, TikTok, etc. have their own walled gardens. The advantage of a platform like AdRoll/Criteo is that it can consolidate substantial open-web + social inventory and audience/measurement workflows rather than making you manage every retargeting campaign independently. Criteo, for example, explicitly supports open-web and Meta inventory from its platform. help.criteo.com

If you tell me your ecommerce platform (Shopify/WooCommerce/etc.), monthly ad spend, and which networks you want (Google, Meta, TikTok, YouTube, CTV, etc.), I can give you a more specific recommendation and estimated setup/cost tradeoffs.

If your goal is specifically retargeting checkout abandoners and showing ads across multiple ad networks (Meta, Google, TikTok, display, native, etc.), the best platform depends on your store size, traffic volume, and how much control you want.

Best overall cross-network retargeting platforms

My typical recommendations

For a Shopify brand under ~$1M/year

• Use Klaviyo for abandoned checkout email/SMS.
• Use Meta Advantage+ retargeting + Google remarketing for paid ads.
• Add AdRoll if you specifically want broader display/native reach. www.adroll.com

For a $1M–$20M ecommerce brand

• Consider:
  • AdRoll or Criteo for cross-network reach
  • Klaviyo for owned-channel recovery
  • Meta + Google campaigns for high-intent segments

For enterprise ecommerce

• Look at Criteo, The Trade Desk, or custom programmatic setups.

The audience structure matters more than the platform

For checkout abandoners, avoid treating everyone the same:

1. Started checkout in last 1–3 days
   • Highest bid
   • Show exact product
   • Remove friction ("Complete your order")
   • Avoid aggressive discounts initially

2. Cart abandoned 3–14 days
   • Social proof
   • Reviews
   • Benefits
   • Limited incentives if needed

3. Product viewers only
   • Lower bids
   • Educational creatives

Also make sure purchasers are excluded so you are not paying to advertise products they already bought.

If I had to pick one:

• Best single cross-network retargeting tool: AdRoll www.adroll.com
• Best ecommerce recovery stack: Klaviyo + Meta + Google
• Best enterprise option: Criteo

If you tell me your platform (Shopify, WooCommerce, Magento, custom) and monthly traffic/ad spend, I can narrow it down.

If your main requirement is retargeting checkout abandoners across multiple ad networks from one platform, my top pick is AdRoll.

Best options

Why I'd choose AdRoll: it has a dedicated “Convert Cart Abandoners” campaign that can trigger when someone reaches the cart/adds an item and stop when they purchase. It can coordinate retargeting across web, Facebook, Instagram, Pinterest, and TikTok. help.adroll.com

AdRoll also provides cross-channel reporting integrations for Google Ads, Meta, TikTok, Pinterest, Snapchat, Amazon Ads, Microsoft Ads, LinkedIn, and X, although that doesn't mean it directly controls campaigns on every one of those networks. help.adroll.com

Criteo is the stronger alternative if you're a larger ecommerce operation and care more about sophisticated commerce-data optimization. Its dynamic retargeting covers the open web and social, with AI-driven bidding and personalized product recommendations. www.criteo.com

One important distinction

If by “multiple ad networks” you mean Google + Meta + TikTok + display inventory all actively managed from one interface, AdRoll is unusually well suited to that use case. Its automation builder is specifically designed to coordinate social and programmatic campaigns. www.adroll.com

If you tell me your store platform (Shopify/WooCommerce/custom), monthly ad spend, and which networks you want (Google/Meta/TikTok/etc.), I can narrow it down to the best 2–3 options and compare pricing, tracking, audience windows, and likely setup complexity.

If your main goal is “someone reaches checkout, abandons, and I want to automatically follow them across multiple ad networks until they buy,” my pick would be AdRoll for most small/midsize ecommerce businesses.

My shortlist

Why I'd choose AdRoll

AdRoll specifically supports cart/checkout abandonment, dynamic product ads, and cross-channel campaigns. Its ecommerce integration can identify abandoned shoppers and automatically coordinate ads across Facebook, Instagram, TikTok, Pinterest, and the web. www.adroll.com

It also gives you centralized reporting and cross-channel attribution rather than forcing you to manage separate retargeting campaigns in every ad platform. www.adroll.comhelp.criteo.com

See AdRoll's retargeting platform

When I'd choose Criteo instead

If you're doing substantial ecommerce volume and have a sophisticated catalog/feed, I'd seriously consider Criteo.

Criteo is particularly strong for programmatic commerce retargeting: it uses product/catalog data and behavioral signals to dynamically select products, creative, bids and placements across the open web, social, video and in-app inventory. www.criteo.com

One caveat: Criteo's current Commerce Growth social activation is more limited than AdRoll's—the current documentation says its social ads feature activates Meta inventory (Facebook/Instagram), while its broader reach comes through open-web/video/in-app channels. help.criteo.com

The setup I'd actually use

Don't treat all visitors the same. Create a checkout-abandoner audience:

Checkout started → no purchase

• 0–1 hour: ideally email/SMS if you have consent
• 1–3 days: dynamic product ads
• Exclude anyone who purchases
• Give checkout abandoners higher priority than ordinary product-page visitors
• Frequency-cap the ads so you're not annoying them
• Consider a progressively stronger incentive rather than immediately offering 20% off

Google itself supports event-based remarketing around actions such as add_to_cart and purchase, which makes this segmentation possible. support.google.com

Bottom line:

• Want easy “one platform → multiple ad networks”? → AdRoll
• Doing serious/high-volume ecommerce and want sophisticated programmatic optimization? → Criteo
• Mostly Google/YouTube traffic? → Google Ads
• Mostly DTC/social? → Meta

If you tell me your monthly site traffic, ecommerce platform (Shopify/WooCommerce/etc.), monthly ad spend, and which networks you specifically want (Meta/Google/TikTok/Pinterest/etc.), I can narrow this down to the best 1–2 options and compare pricing, audience size requirements, tracking, and expected setup complexity.