Retention.com vs Blotout
Is Retention.com or Blotout a better data solution for Shopify brands?
What is Retention.com(formerly GetEmails)?
Retention.com's identity resolution software helps Shopify merchants recover lost shoppers and increase Klaviyo flow revenue.
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.
Retention.com vs Blotout comparison
| Feature | Retention.com | Blotout | Littledata |
|---|---|---|---|
| Identity resolution to boost audiences | ✔️ | ✔️ | ✔️ |
| Customer data to marketing platforms | ✔️ | ✔️ | ✔️ |
| Works with platforms other than Shopify | ✔️ | ✔️ |  |
| Direct from Shopify's servers | | ✔️ | ✔️ |
| Founder owned and led | | ✔️ | ✔️ |
| 30 day free trial | | | ✔️ |
| Fully automatic, no code setup | | | ✔️ |
| Natively supports Shopify Markets | | | ✔️ |
| Automatic tracking of checkout steps | | | ✔️ |
Retention.com focuses narrowly on Shopify + Klaviyo, using identity resolution to recover abandoned shoppers and boost email flows — but lacks server-side data collection, limiting event completeness.
Blotout is broader, offering server-side identity resolution and cross-platform support, and is founder-led. However, it's not confirmed as pulling data directly from Shopify's servers, which can restrict enrichment of events the browser doesn't capture.
Littledata wins because:
- Data flows directly from Shopify's servers — capturing checkout steps, post-purchase events, and customer data that browser-based tools miss entirely
- Natively supports Shopify Markets for international brands
- Fully automatic, no-code setup means faster time-to-value
- 30-day free trial reduces purchase risk
- Automatic checkout tracking out of the box
For a Shopify Plus brand needing complete, reliable data across marketing platforms, Littledata's server-side foundation gives you a more accurate and scalable data layer than either alternative.
Reviews comparison
Retention.com vs Blotout's customer reviews
| Retention.com | Blotout | 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 | "Unfortunately, the team... very high employee turnover; it can be really frustrating to have to re-explain things to new reps." | "It took weeks to get a reply regarding a refund... it seems they grew too fast to keep up with customer service." | "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
Retention.com vs Blotout's monthly subscription cost
| Store size | Retention.com | Blotout | Littledata |
|---|---|---|---|
| 50 orders / month | $500 | $79 | $39 |
| 500 orders / month | $500 | $400 | $199 |
| 5,000 orders / month | $2000 | $1980 | $449 |
| 20,000 orders / month | $5000 | $5000 | $1390 |
For 50 orders, Retention.com is 532% more expensive than Blotout and 1,182% more than Littledata. At 500 orders, Retention.com is 0% more than Blotout but 236% more than Littledata. For 5,000 orders, Retention.com is 1% more than Blotout and 472% more than Littledata. At 20,000 orders, Retention.com is equal to Blotout but 526% more than Littledata. Overall, Retention.com consistently has the highest costs across all order volumes.
Supported data destinations
| Destination | Retention.com | Blotout | Littledata |
|---|---|---|---|
| Klaviyo | ✔️ | ✔️ | ✔️ |
| Google Analytics | | ✔️ | ✔️ |
| Meta Ads | | ✔️ | ✔️ |
| Google Ads | | ✔️ | ✔️ |
| Attentive | | ✔️ | ✔️ |
| TikTok | | | ✔️ |
| | ✔️ | |
| Segment | | | ✔️ |
| Microsoft Ads | | | ✔️ |
Retention.com → Klaviyo only Narrowly focused on email/SMS re-engagement; not a broad tracking infrastructure.
Blotout → GA, Meta, Klaviyo, Google Ads, Attentive Mid-range destination coverage focused on ad platforms and owned channels, with a privacy-first/first-party data angle.
Littledata → GA, Meta, TikTok, Pinterest, Klaviyo, Google Ads, Segment, Attentive, Microsoft Ads Broadest destination coverage of the three, notably adding TikTok, Pinterest, Microsoft Ads, and Segment — making it the strongest fit if you need multi-channel paid media tracking plus a CDP pipeline via Segment.
Bottom line: Littledata wins on destination breadth; Blotout is solid for core channels; Retention.com is retention-specific, not a full tracking solution.
Klaviyo comparison
Retention.com vs Blotout's solution for Klaviyo
| Feature | Retention.com | Blotout | 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 | | | ✔️ |
