Addingwell is a fully-managed GTM server-side hosting + tooling (monitoring, adblocker bypass, Safari resilience) to improve data quality, performance and governance.

Blotout restores your marketing signals in the post-cookie world. Your returning customers are showing up as anonymous and Blotout aims to identify them.
| Feature | Addingwell | Blotout | Littledata |
|---|---|---|---|
| Server-side tracking | ✔️ | ✔️ | ✔️ |
| Works with platforms other than Shopify | ✔️ | ✔️ | |
| Identity resolution to boost audiences | ✔️ | ✔️ | |
| Customer data to marketing platforms | ✔️ | ✔️ | |
| Founder owned and led | ✔️ | ✔️ | |
| 30 day free trial | ✔️ | ||
| Fully automatic, no code setup | ✔️ | ||
| Automatic tracking of checkout steps | ✔️ | ||
| No-code setup for Shopify Hydrogen | ✔️ |
Addingwell focuses on server-side tracking and data quality improvements, offering tools for monitoring and adblocker bypass, but lacks a free trial and automatic setup. Blotout also provides server-side tracking and identity resolution, targeting anonymous returning customers, but does not emphasize ease of use. Littledata stands out with a 30-day free trial, fully automatic no-code setup, and automatic tracking of checkout steps, making it more user-friendly and accessible for ecommerce managers looking for efficient data collection and tracking solutions.
| Addingwell | Blotout | Littledata | |
|---|---|---|---|
| Example product review | Setup took just a few seconds, and it works right away. All my pixels from GTM are now server-side and perfectly connected. So much money saved on ads. | "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 | The support was very fast to answer our questions and super helpful. Just be careful to check that the events don't trigger twice. | "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 |
| Store size | Addingwell | Blotout | Littledata |
|---|---|---|---|
| 50 orders / month | $90 | $79 | $39 |
| 500 orders / month | $90 | $400 | $199 |
| 5,000 orders / month | $130 | $1980 | $449 |
| 20,000 orders / month | $400 | $5000 | $1390 |
For 50 orders, Addingwell is 14% more expensive than Blotout and 131% more than Littledata. At 500 orders, Addingwell and Blotout are equal, while Littledata is 66% more expensive. For 5000 orders, Addingwell is 93% cheaper than Blotout but 63% more than Littledata. At 20000 orders, Addingwell is 92% cheaper than Blotout and 50% more than Littledata. Overall, Addingwell is generally more affordable at higher volumes, while Blotout significantly increases in cost.
| Destination | Addingwell | Blotout | Littledata |
|---|---|---|---|
| Google Analytics | ✔️ | ✔️ | ✔️ |
| Meta Ads | ✔️ | ✔️ | ✔️ |
| Google Ads | ✔️ | ✔️ | ✔️ |
| TikTok | ✔️ | ✔️ | |
| ✔️ | ✔️ | ||
| Klaviyo | ✔️ | ✔️ | |
| Attentive | ✔️ | ✔️ | |
| Snap | ✔️ | ||
| Segment | ✔️ |
Addingwell focuses on integrating with major advertising platforms like TikTok and Snap, enhancing ad performance tracking. Blotout emphasizes email marketing with Klaviyo and Attentive, targeting customer engagement. Littledata offers a broader range, including Segment for data orchestration, and supports both TikTok and Pinterest, catering to diverse marketing strategies. Each solution has unique strengths based on the platforms they integrate with, impacting how you track and optimize your ecommerce performance.
| Feature | Addingwell | Blotout | Littledata |
|---|---|---|---|
| Product list views & clicks | |||
| Tracks products list as you scroll | ✔️ | ||
| Tracks clicks on product list | ✔️ | ||
| Consistent product identifier in GA4 | ✔️ | ||
| Add to Cart | |||
| Tracked client-side | ✔️ | ✔️ | |
| Tracked server-side | ✔️ | ||
| Enriched product info | ✔️ | ||
| Tracks remove from cart | ✔️ | ||
| Checkout steps | |||
| Tracked via checkout page | ✔️ | ||
| Tracks checkout started only | ✔️ | ||
| Tracked direct from Shopify's servers | ✔️ | ||
| Compatible with checkout extensibility | ✔️ | ||
| Compatible with accelerated checkouts | ✔️ | ||
| Purchase | |||
| Tracked server side for 100% accuracy | ✔️ | ✔️ | |
| Tracked via thank you page | ✔️ | ||
| Includes post-purchase upsells | ✔️ | ||
| Includes recurring orders | ✔️ | ||
| Filter orders by sales channel | ✔️ | ||
| Includes refunds | ✔️ | ||
| User-provided data for improved attribution | ✔️ | ||
| Custom mapping to a source / medium | ✔️ | ||
| Feature | Addingwell | Blotout | Littledata |
|---|---|---|---|
| Google Ads Conversions | |||
| Unreliable tracking via thank you page | ✔️ | ✔️ | |
| Tracked direct from Shopify's servers | ✔️ | ||
| Real-time tracking of Enhanced Conversions | ✔️ | ||
| Fully automatic setup | ✔️ | ||
| New vs Returning customer conversions | ✔️ | ||
| Feature | Addingwell | Blotout | Littledata |
|---|---|---|---|
| Key benefits | |||
| 100% accurate revenue in Meta | ✔️ | ✔️ | |
| Boost to Event Match Quality Score | ✔️ | ✔️ | |
| Pre-purchase audiences based on first-party data | ✔️ | ||
| Target subscriptions vs one-time purchases | ✔️ | ||
| Fully automatic setup | ✔️ | ||
| AddToCart | |||
| Via Conversions API | ✔️ | ||
| InitiateCheckout | |||
| Via Conversions API | ✔️ | ||
| Includes all checkout steps | ✔️ | ||
| Purchase | |||
| Via Conversions API | ✔️ | ✔️ | ✔️ |
| Includes post-purchase upsells | ✔️ | ||
| Includes recurring orders | ✔️ | ||
| Filters to exclude orders from some channels | ✔️ | ||
| New vs Returning customer conversions | ✔️ | ||
