Blotout vs Retention.com
Is Blotout or Retention.com a better data solution for Shopify brands?
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(formerly GetEmails)?
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 | | | ✔️ |
Blotout and Retention.com both focus on identity resolution to re-identify anonymous returning customers and push that data to marketing platforms like Klaviyo. Blotout adds a founder-led, post-cookie positioning and pulls data directly from Shopify's servers — giving it stronger event capture than browser-based tools. Retention.com is Shopify/Klaviyo-focused but lacks server-side data collection, limiting its view of the full customer journey.
Where Littledata wins: Littledata also pulls data directly from Shopify's servers — something Retention.com can't match — meaning it captures checkout steps, server-side events, and data the browser never sees. Unlike both alternatives, Littledata is fully automatic with no-code setup, natively supports Shopify Markets, and includes automatic checkout tracking out of the box. The 30-day free trial also lowers the barrier to entry. For a Shopify Plus brand needing complete, reliable data piped to marketing platforms, Littledata offers the most comprehensive and hands-off solution.
Reviews comparison
Blotout vs Retention.com's customer reviews
| Blotout | Retention.com | Littledata | |
|---|---|---|---|
| Example product review | "After using Blotout for a couple months, we decided to drop them... Blotout was taking credit for a lot of Klaviyo pixel events that would’ve happened anyway... Event match quality in Facebook was marginally better, but I don’t think it warrants the cost or complexity." | "We were having difficulties with accurate and consistent revenue attribution...With Littledata implemented, we now get consistent and accurate revenue attribution." | |
| Example support review | "It took weeks to get a reply regarding a refund... it seems they grew too fast to keep up with customer service." | "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 |
Cost comparison
Blotout vs Retention.com's monthly subscription cost
| Store size | Blotout | Retention.com | Littledata |
|---|---|---|---|
| 50 orders / month | $79 | $500 | $39 |
| 500 orders / month | $400 | $500 | $199 |
| 5,000 orders / month | $1980 | $2000 | $449 |
| 20,000 orders / month | $5000 | $5000 | $1390 |
For an online store with 50 orders, Blotout is 84% cheaper than Retention.com and 51% more expensive than Littledata. At 500 orders, Blotout and Retention.com are equal, while Littledata is 63% cheaper than both. With 5,000 orders, Blotout is 1% cheaper than Retention.com and 468% more expensive than Littledata. At 20,000 orders, Blotout and Retention.com remain the same, with Littledata being 84% cheaper. Overall, Littledata consistently offers the lowest pricing across all order volumes.
Supported data destinations
| Destination | Blotout | Retention.com | Littledata |
|---|---|---|---|
| Klaviyo | ✔️ | ✔️ | ✔️ |
| Google Analytics | ✔️ | | ✔️ |
| Meta Ads | ✔️ | | ✔️ |
| Google Ads | ✔️ | | ✔️ |
| Attentive | ✔️ | | ✔️ |
| TikTok | | | ✔️ |
| | ✔️ | |
| Segment | | | ✔️ |
| Microsoft Ads | | | ✔️ |
Blotout offers a mid-range destination set covering core ad platforms and email/SMS, balancing paid acquisition with retention channels.
Retention.com is heavily focused on identity resolution and list-building, with Klaviyo as its primary destination — making it a retention/email-first 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 acts as a data hub enabling connections to hundreds of downstream tools — giving Littledata a significant scalability advantage for brands with complex martech stacks.
Bottom line: Littledata wins on breadth; Retention.com is narrowly specialized; Blotout sits in between.
Klaviyo comparison
Blotout vs Retention.com's solution for Klaviyo
| Feature | Blotout | Retention.com | Littledata |
|---|---|---|---|
| Identity resolution | |||
| Never adds new emails to your marketing list | ✔️ | | ✔️ |
| Docs on how an end-user can opt out for GDPR / CCPA | | | ✔️ |
| 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 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 | | ✔️ | ✔️ |
| Reliable via Shopify's 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's servers | | | ✔️ |
