Blotout vs Retention.com
Blotout is better for Shopify brands: broader platform support, server-side data, lower cost.

What is Blotout?
Blotout restores your marketing signals in the post-cookie world. Your returning customers are showing up as anonymous and Blotout aims to identify them.

What is Retention.com?
Retention.com's identity resolution software helps Shopify merchants recover lost shoppers and increase Klaviyo flow revenue.
Blotout vs Retention.com comparison
| Feature | Blotout | Retention.com | Littledata |
|---|---|---|---|
| Identity resolution to boost audiences | ✔️ | ✔️ | ✔️ |
| Customer data to marketing platforms | ✔️ | ✔️ | ✔️ |
| Direct from Shopify's servers | ✔️ | ✔️ | |
| Works with platforms other than Shopify | ✔️ | ✔️ | |
| Founder owned and led | ✔️ | ✔️ | |
| 30 day free trial | ✔️ | ||
| Fully automatic, no code setup | ✔️ | ||
| Natively supports Shopify Markets | ✔️ | ||
| Automatic tracking of checkout steps | ✔️ | ||
| Built For Shopify | ✔️ |
Both Blotout and Retention.com focus on identity resolution to re-identify anonymous returning customers and push that data to marketing platforms like Klaviyo. Blotout differentiates with server-side data collection direct from Shopify and works beyond Shopify, while Retention.com is more narrowly focused on Shopify/Klaviyo flow recovery.
Where Littledata wins over both:
Neither Retention.com nor Blotout emphasizes complete server-side Shopify data collection the way Littledata does. Since Retention.com lacks "Direct from Shopify's servers," it relies more on browser-side signals — meaning it can miss events the browser doesn't capture, limiting the completeness of customer journey tracking. Blotout does pull direct from Shopify's servers, narrowing Littledata's edge there.
Littledata's unique advantages are its automatic checkout step tracking, native Shopify Markets support, fully no-code setup, and a 30-day free trial — making it the stronger all-in-one tracking and identity solution for data-complete ecommerce analytics.
Cost comparison
Blotout vs Retention.com's monthly subscription cost
| Store size | Blotout | Retention.com | Littledata |
|---|---|---|---|
| 50 orders / month | $79 | $500 | $18 |
| 500 orders / month | $400 | $500 | $175 |
| 5,000 orders / month | $1980 | $2000 | $544 |
| 20,000 orders / month | $5000 | $5000 | $1290 |
Sources: Blotout pricing, Littledata pricing. Prices last verified October 22, 2026. Blotout: Extra per additional destination. Retention.com: Annual plans only.
Supported data destinations
| Destination | Blotout | Retention.com | Littledata |
|---|---|---|---|
| Klaviyo | ✔️ | ✔️ | ✔️ |
| Google Analytics | ✔️ | ✔️ | |
| Meta Ads | ✔️ | ✔️ | |
| Google Ads | ✔️ | ✔️ | |
| Attentive | ✔️ | ✔️ | |
| TikTok | ✔️ | ||
| ✔️ | |||
| Segment | ✔️ | ||
| Microsoft Ads | ✔️ | ||
| ChatGPT Ads | ✔️ |
Blotout offers a mid-range destination set covering major ad platforms and email, balancing paid acquisition and retention channels.
Retention.com is heavily focused on identity resolution and list-building, with Klaviyo as its primary destination — making it an email/SMS retention tool rather than a full tracking suite.
Littledata provides the broadest destination coverage, adding TikTok, Pinterest, Microsoft Ads, and Segment on top of what Blotout offers. The Segment integration is particularly notable, as it unlocks a secondary data pipeline to hundreds of additional tools — giving Littledata a clear edge for brands wanting flexibility and scalability across their entire martech stack.
Klaviyo comparison
Blotout vs Retention.com's solution for Klaviyo
| Feature | Blotout | Retention.com | Littledata |
|---|---|---|---|
| Identity resolution | |||
| Never adds emails to your list without consent | ✔️ | ✔️ | |
| Uses other marketing channel cookies to boost identity | ✔️ | ||
| Backstitches Klaviyo profile onto previous customer events | ✔️ | ||
| Klaviyo Preferred Partner | ✔️ | ||
| Viewed Product trigger | |||
| Backwards compatible with Klaviyo templates | ✔️ | ✔️ | |
| Tracked client-side | ✔️ | ||
| Tracked server-side | ✔️ | ||
| Enriched product info (e.g. category) | ✔️ | ||
| Added to Cart trigger | |||
| Unreliable tracking of button clicks | ✔️ | ✔️ | |
| Backwards compatible with Klaviyo templates | ✔️ | ✔️ | |
| Direct from Shopify servers | ✔️ | ||
| Enriched product info (e.g. category) | ✔️ | ||
| Target the whole contents of the cart | ✔️ | ||
| Checkout Started trigger | |||
| Tracked via the checkout page | ✔️ | ✔️ | |
| Backwards compatible with Klaviyo templates | ✔️ | ✔️ | |
| Direct from Shopify servers | ✔️ | ||
| Placed Order metric | |||
| Direct from Shopify servers | ✔️ | ||
| Selectable as conversion metric for revenue attribution | ✔️ | ||
Benefits of Littledata

Comparing Blotout against Retention.com
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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 November 3, 2026. Spotted something out of date? Let us know.