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

Analyzify is the easiest way to get valuable insights from your Shopify data. With Analyzify, you can connect your Shopify store with Google Tag Manager, Google Analytics 4, and many others easily.
| Feature | Retention.com | Analyzify | Littledata |
|---|---|---|---|
| Customer data to marketing platforms | ✔️ | ✔️ | ✔️ |
| Identity resolution to boost audiences | ✔️ | ✔️ | |
| Works with platforms other than Shopify | ✔️ | ✔️ | |
| 30 day free trial | ✔️ | ✔️ | |
| Founder owned and led | ✔️ | ✔️ | |
| Direct from Shopify's servers | ✔️ | ||
| Fully automatic, no code setup | ✔️ | ||
| Natively supports Shopify Markets | ✔️ | ||
| Automatic tracking of checkout steps | ✔️ | ||
| Built For Shopify | ✔️ |
Retention.com focuses on identity resolution to recover anonymous shoppers and boost Klaviyo flows — strong for email re-engagement but narrower in scope.
Analyzify excels at connecting Shopify data to GA4 and Google Tag Manager, making it ideal for marketing analytics — but GTM relies on browser-side tags, limiting data completeness.
Neither is Littledata. Here's where Littledata wins both:
For a Shopify Plus brand needing accurate, complete data, Littledata's server-side foundation is a meaningful structural advantage.
Retention.com vs Analyzify's customer reviews
| Retention.com | Analyzify | Littledata | |
|---|---|---|---|
| Example product review | "Conflicting GA4 properties led to quadruplicate tracking and corrupted analytics data... resulted in significant financial impact due to lost advertising effectiveness and countless hours of troubleshooting." | "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." | "Awful experience. You pay $$$ and have to troubleshoot everything with little help... just get redirected to help articles." | "Customer support is absolutely amazing... you can never go wrong when an app does what it says and tacks on great service!" |
| Link | Read more reviews | Read more reviews | Read more reviews |
Retention.com vs Analyzify's monthly subscription cost
| Store size | Retention.com | Analyzify | Littledata |
|---|---|---|---|
| 50 orders / month | $500 | $145 | $39 |
| 500 orders / month | $500 | $145 | $175 |
| 5,000 orders / month | $2000 | $145 | $540 |
| 20,000 orders / month | $5000 | $225 | $1390 |
Sources: Analyzify pricing, Littledata pricing. Prices last verified July 22, 2026.
Compared at 5,000 orders a month. Assumes 20 hours of setup, spread over 12 months, plus 3 hours a month of maintenance, at $100/hour, for self-managed tools. Hosting or subscription is only a fraction of the true cost.
$2000
None, fully managed
None, fully managed
$2000
$145
+ $167
+ $300
$612
$540
None, fully managed
None, fully managed
$540
| Destination | Retention.com | Analyzify | Littledata |
|---|---|---|---|
| Klaviyo | ✔️ | ✔️ | |
| Google Analytics | ✔️ | ✔️ | |
| Meta Ads | ✔️ | ✔️ | |
| TikTok | ✔️ | ✔️ | |
| Google Ads | ✔️ | ✔️ | |
| ✔️ | |||
| Segment | ✔️ | ||
| Attentive | ✔️ | ||
| Microsoft Ads | ✔️ |
Retention.com is laser-focused on email/SMS retargeting — its sole destination (Klaviyo) means it's built purely to identify anonymous visitors and push them into retention flows, not ad platforms.
Analyzify targets paid media performance — its destinations (GA4, Meta, TikTok, Google Ads) are optimized for ad attribution and analytics accuracy via server-side event matching.
Littledata offers the broadest ecosystem, covering paid media, analytics, email/SMS (Klaviyo, Attentive), and data infrastructure (Segment), making it the most versatile for brands wanting a unified server-side data layer across multiple stacks.
Bottom line: Retention.com = retention/CRM. Analyzify = ad attribution. Littledata = full-stack data routing across ads, analytics, and owned channels.

Keep comparing
See how these tools stack up against other Shopify tracking and analytics solutions.
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 7, 2026. Spotted something out of date? Let us know.