Retention.com vs Aimerce

Aimerce is better for Shopify: more reliable data, broader integrations, lower cost.

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Retention.com logo

What is Retention.com?

Retention.com's identity resolution software helps Shopify merchants recover lost shoppers and increase Klaviyo flow revenue.

Aimerce logo

What is Aimerce?

Aimerce claims to be the easiest way to capture more high-quality customer data

Retention.com vs Aimerce comparison

FeatureRetention.comAimerceLittledata
Identity resolution to boost audiences✔️✔️✔️
Customer data to marketing platforms✔️✔️✔️
Fully automatic, no code setupminus✔️✔️
Founder owned and ledminus✔️✔️
Direct from Shopify's serversminus✔️✔️
Works with platforms other than Shopify✔️minusminus
30 day free trialminusminus✔️
Natively supports Shopify Marketsminusminus✔️
Automatic tracking of checkout stepsminusminus✔️
Built For Shopifyminusminus✔️

Retention.com vs Aimerce:

Both offer identity resolution and customer data routing to marketing platforms. Aimerce edges ahead with no-code setup and pulls data directly from Shopify's servers, giving it more reliable, complete data capture. Retention.com works across platforms beyond Shopify, but lacks server-side data collection, limiting event enrichment.

Where Littledata wins over both:

Neither is Littledata, so here's what Littledata adds:

  • 30-day free trial — neither competitor offers this
  • Direct from Shopify's servers — Retention.com lacks this entirely, meaning missed events the browser doesn't see and limited customer data enrichment
  • Natively supports Shopify Markets — critical for a Shopify Plus brand selling internationally
  • Automatic checkout step tracking — neither competitor highlights this
  • No-code, fully automatic setup — matches Aimerce but Retention.com falls short

For a Shopify Plus brand prioritizing data completeness and international selling, Littledata's server-side foundation gives it a structural advantage both competitors can't fully match.

Reviews comparison

Retention.com vs Aimerce's customer reviews

Retention.comAimerceLittledata
Example product review"Aimerce has been a total game-changer for our ad campaigns. The setup was incredibly easy, and we saw immediate improvements in both ad performance and event tracking accuracy.""We were having difficulties with accurate and consistent revenue attribution...With Littledata implemented, we now get consistent and accurate revenue attribution."
Example support review"Unfortunately, the team... very high employee turnover; it can be really frustrating to have to re-explain things to new reps.""Aimerce's customer service is non-existent... no response to inquiries, leaving us frustrated and unsupported.""Customer support is absolutely amazing... you can never go wrong when an app does what it says and tacks on great service!"
LinkRead more reviewsRead more reviewsRead more reviews

Cost comparison

Retention.com vs Aimerce's monthly subscription cost

Store sizeRetention.comAimerceLittledata
50 orders / month$500$299$39
500 orders / month$500$299$175
5,000 orders / month$2000$499$540
20,000 orders / month$5000$1799$1390

Sources: Aimerce pricing, Littledata pricing. Prices last verified July 22, 2026.

Supported data destinations

DestinationRetention.comAimerceLittledata
Klaviyo✔️✔️✔️
Meta Adsminus✔️✔️
Google Adsminus✔️✔️
Google Analyticsminusminus✔️
TikTokminusminus✔️
Pinterestminusminus✔️
Segmentminusminus✔️
Attentiveminusminus✔️
Microsoft Adsminusminus✔️

Retention.com → Klaviyo only Focused purely on identity resolution and email list growth; Klaviyo is the single destination, making it a specialized email capture tool rather than a full tracking stack.

Aimerce → Klaviyo, Meta Ads, Google Ads Broader than Retention.com, covering email retention plus paid social and search ad optimization — useful for improving ROAS alongside owned-channel performance.

Littledata → 9 destinations The most comprehensive option, covering analytics (GA4), paid media (Meta, Google, TikTok, Pinterest, Microsoft), email/SMS (Klaviyo, Attentive), and data infrastructure (Segment). Best suited if you need a unified server-side data layer feeding multiple channels simultaneously.

Bottom line: Retention.com = email growth; Aimerce = email + core paid media; Littledata = full-stack multi-channel tracking.

Klaviyo comparison

Retention.com vs Aimerce's solution for Klaviyo

FeatureRetention.comAimerceLittledata
Identity resolution
Uses other marketing channel cookies to boost identityminus✔️✔️
Klaviyo Preferred Partnerminus✔️✔️
Never adds emails to your list without consentminusminus✔️
Backstitches Klaviyo profile onto previous customer eventsminusminus✔️
Viewed Product trigger
Backwards compatible with Klaviyo templates✔️minus✔️
Tracked server-sideminusminus✔️
Enriched product info (e.g. category)minusminus✔️
Added to Cart trigger
Unreliable tracking of button clicks✔️✔️minus
Backwards compatible with Klaviyo templates✔️minus✔️
Direct from Shopify serversminusminus✔️
Enriched product info (e.g. category)minusminus✔️
Target the whole contents of the cartminusminus✔️
Checkout Started trigger
Backwards compatible with Klaviyo templates✔️minus✔️
Direct from Shopify serversminus✔️✔️
Tracked via the checkout page✔️minusminus

How Littledata tracks Klaviyo for Shopify →

Benefits of Littledata
Littledata has been trusted by leading Shopify brands since 2017 for reliable server-side tracking.
100% of revenue tracked
Enhanced identity resolution
Connectors for all popular marketing channels
Learn more
Benefits of Littledata
Comparing Retention.com against Aimerce
Can I switch from Retention.com to Littledata?

Yes, join dozens of Shopify brands who made the switch to Littledata for simpler server-side tracking, faster setup, and transparent pricing. We’ll even help migrate your Retention.com setup.

Can I switch from Aimerce to Littledata?

Yes, join dozens of Shopify brands who made the switch to Littledata for simpler server-side tracking, faster setup, and transparent pricing. We’ll even help migrate your Aimerce setup.

How does Retention.com work?

Retention Grow uses a large third-party list of email addresses to link anonymous sessions to emails given to a third party brand. This can grow your marketing audience, but at the expense of higher spam and privacy complaints.

Does Retention.com work with Shopify?

Yes, Retention.com is installed on 1,950 Shopify sites according to the latest stats from BuiltWith.

How does Aimerce work?

Aimerce enriches your first-party data with server-side tracking immune to ad blockers, iOS upgrades and browser instabilities

Does Aimerce work with Shopify?

Yes, Aimerce is installed on 420 Shopify sites according to the latest stats from BuiltWith.

Is Retention.com suitable for Enterprise brands?

Retention.com is used by 1406 sites in the top 100,000 globally - so this solution is likely suitable for Enterprise scale brands.

Is Aimerce suitable for Enterprise brands?

Aimerce is used by 315 sites in the top 100,000 globally - so this solution is likely suitable for Enterprise scale brands.

Which marketing tools does Retention.com support?

Retention.com supports Klaviyo.

Which marketing tools does Aimerce support?

Aimerce supports Klaviyo, Meta Ads and Google Ads.

Who owns Retention.com?

Retention.com(formerly GetEmails) is an independent private company headquartered in Austin, Texas. Adam Robinson is Retention.com's CEO.

Who owns Aimerce?

Aimerce is an independent private company headquartered in San Fransisco. Yiqi Wu is Aimerce's CEO.

When is Retention.com a better choice than Littledata?

Retention.com is a better choice if your goal is de-anonymising website traffic into contactable emails to grow owned email and SMS remarketing. Littledata is the better fit for teams who want turnkey, fully managed server-side tracking without building or maintaining tag infrastructure.

When is Aimerce a better choice than Littledata?

Aimerce is a better choice if you are a Klaviyo or email-driven brand that mainly wants to extend first-party cookie lifetime for email attribution, with a built-in AI analyst. Littledata is the better fit for teams who want turnkey, fully managed server-side tracking without building or maintaining tag infrastructure.

How is Littledata's tracking different from Google Tag Manager?

Littledata sends purchase and behavioural data server-to-server, directly from Shopify's servers, so it does not depend on browser tags or a Google Tag Manager container you have to maintain. Tracking keeps working when Shopify changes the checkout, and events can be enriched with customer and order data the browser never sees. Tools built on server-side Google Tag Manager still rely on browser tags to collect events, and someone has to build and maintain the container.

Do I need an implementation agency to set up Littledata?

No. Littledata is turnkey: install the Shopify app and server-side tracking is live, with no code and no Google Tag Manager required. Self-managed server-side setups typically need 10 to 40 hours of specialist configuration up front, plus a few hours a month of ongoing maintenance, which is why a low sticker price often hides a much higher true cost.

How does Littledata handle event editing?

Littledata's Event Editor lets you customise and enrich the events sent to each destination without code, so you control exactly what data reaches Google Analytics, Meta, Klaviyo and your other marketing tools.

What is Littledata's Profit signal?

Littledata's Profit signal sends true profit, not just revenue, to your ad platforms, so Meta and Google can optimise campaigns towards the orders that actually make you money.

Does Littledata protect against bot traffic?

Yes. Littledata's bot protection filters automated traffic out of your tracking, so your analytics and ad audiences are built on real customers.

Does Littledata support Shopify Markets and headless stores?

Yes. Littledata supports unlimited Shopify Markets for cross-border stores and headless and Hydrogen storefronts.

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How we compiled this comparison: pricing and feature data comes from each vendor's public pricing page, Shopify App Store listings, and BuiltWith usage data, reviewed by the Littledata team. Last verified August 19, 2026. Spotted something out of date? Let us know.