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

| Feature | Retention.com | Littledata |
|---|---|---|
| Identity resolution to boost audiences | ✔️ | ✔️ |
| Customer data to marketing platforms | ✔️ | ✔️ |
| 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 | ✔️ |
Retention.com focuses narrowly on identity resolution for Shopify/Klaviyo — recovering anonymous shoppers and boosting email flows. It lacks server-side tracking, native checkout step tracking, and broader platform data infrastructure.
Littledata offers a more complete tracking solution: server-side data direct from Shopify's servers, automatic checkout tracking, GA4/Meta/Klaviyo integration, Shopify Markets support, and no-code setup — all in a 30-day free trial.
Where Littledata wins:
For a Shopify Plus brand needing reliable, complete data across ad platforms and analytics, Littledata provides significantly stronger infrastructure than Retention.com's more email-focused toolset.
| Retention.com | Littledata | |
|---|---|---|
| Example product review | "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." | "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 |
| Store size | Retention.com | Littledata |
|---|---|---|
| 50 orders / month | $500 | $39 |
| 500 orders / month | $500 | $199 |
| 5,000 orders / month | $2000 | $449 |
| 20,000 orders / month | $5000 | $1390 |
For an online store with 50 orders, Retention.com is 1,182% more expensive than Littledata. At 500 orders, Retention.com and Littledata are equal, but Littledata's second option is 70% cheaper. For 5,000 orders, Retention.com is 345% more expensive than Littledata's first option and 471% more than the second. At 20,000 orders, Retention.com is 259% more expensive than Littledata's first option and 526% more than the second. Overall, Retention.com consistently shows higher pricing across all order volumes.
| Destination | Retention.com | Littledata |
|---|---|---|
| Klaviyo | ✔️ | ✔️ |
| Google Analytics | ✔️ | |
| Meta Ads | ✔️ | |
| TikTok | ✔️ | |
| ✔️ | ||
| Google Ads | ✔️ | |
| Segment | ✔️ | |
| Attentive | ✔️ | |
| Microsoft Ads | ✔️ |
Retention.com focuses solely on Klaviyo as its data destination — its core value is identity resolution (identifying anonymous visitors) and funneling enriched customer data into Klaviyo for email/SMS flows.
Littledata is a broader multi-destination tracking platform, sending server-side event data to Google Analytics, Meta Ads, TikTok, Pinterest, Google Ads, Microsoft Ads, Klaviyo, Segment, and Attentive — covering your full paid media, analytics, and owned marketing stack.
Bottom line: Retention.com is a Klaviyo-centric identity tool; Littledata is a comprehensive server-side tracking solution built to improve data accuracy across your entire marketing and analytics ecosystem.
| Feature | Retention.com | Littledata |
|---|---|---|
| Identity resolution | ||
| Docs on how an end-user can opt out for GDPR / CCPA | ✔️ | |
| Never adds new emails to your marketing list | ✔️ | |
| Uses other marketing channel cookies to boost identity | ✔️ | |
| Backstitches Klaviyo profile onto previous customer events | ✔️ | |
| Direct from Shopify's servers | ✔️ | |
| Viewed Product trigger | ||
| Backwards compatible with Klaviyo templates | ✔️ | ✔️ |
| Tracked server-side | ✔️ | |
| Enriched product info (e.g. category) | ✔️ | |
| Added to Cart trigger | ||
| Backwards compatible with Klaviyo templates | ✔️ | ✔️ |
| Unreliable tracking of button clicks | ✔️ | |
| Reliable via Shopify's servers | ✔️ | |
| Enriched product info (e.g. category) | ✔️ | |
| Target the whole contents of the cart | ✔️ | |
| Checkout Started trigger | ||
| Backwards compatible with Klaviyo templates | ✔️ | ✔️ |
| Tracked via the checkout page | ✔️ | |
| Direct from Shopify's servers | ✔️ | |
