
Say goodbye to siloed and inaccurate data that is slowing you down. Centralize your analytics, sales and marketing platform data, enabling faster, data-driven decisions.

Popsixle fixes the data you're sending to Facebook and Instagram so it knows who your best customers are. Scale your revenue with better audiences and conversion tracking.
| Feature | Upstack Data | Popsixle | Littledata |
|---|---|---|---|
| Identity resolution to boost audiences | ✔️ | ✔️ | ✔️ |
| Founder owned and led | ✔️ | ✔️ | ✔️ |
| Customer data to marketing platforms | ✔️ | ✔️ | ✔️ |
| Direct from Shopify's servers | ✔️ | ✔️ | ✔️ |
| 30 day free trial | ✔️ | ✔️ | |
| Fully automatic, no code setup | ✔️ | ✔️ | |
| Marketing reporting | ✔️ | ||
| Proprietary attribution model | ✔️ | ||
| Works with platforms other than Shopify | ✔️ | ||
| Natively supports Shopify Markets | ✔️ | ||
| Automatic tracking of checkout steps | ✔️ |
Upstack Data vs Popsixle vs Littledata
Upstack Data offers broad analytics centralization with marketing reporting, a proprietary attribution model, and no-code setup — making it a strong choice for teams wanting a unified data overview beyond just ad platforms.
Popsixle is narrowly focused on fixing Facebook and Instagram data quality. It lacks marketing reporting and a free trial, limiting visibility and risk-free evaluation.
Where Littledata wins over both:
Both competitors pull data direct from Shopify's servers, so tracking completeness is comparable — but Littledata goes further with native Shopify Markets support, critical if you're selling internationally. Its automatic checkout step tracking gives granular funnel visibility neither rival explicitly offers. The no-code setup matches Upstack but Popsixle doesn't confirm this. Littledata also combines the 30-day free trial (missing from Popsixle) with identity resolution and multi-platform data delivery — making it the most complete, lowest-friction solution for a scaling Shopify Plus brand.
| Upstack Data | Popsixle | Littledata | |
|---|---|---|---|
| Example product review | "After testing a number of platforms...absolutely no regrets. Michael has a truly deep technical knowledge...Event Quality Match scores in meta increase, adding reliable NC purchase, NC CPA and NC ROAS metrics in ad manager is massively helpful as we're very focused on optimizing for NC..." | "I was having issues with Facebook claiming purchases from our existing customers...Popsixle comes in to show how many actual new customers were purchasing on our website and then feed that info back to Facebook." | "We were having difficulties with accurate and consistent revenue attribution...With Littledata implemented, we now get consistent and accurate revenue attribution." |
| Example support review | "Support is second to none... any issues we've had Michael has arranged a call immediately to diagnose the issue." | "Popsixle's support is non-existent... I reached out multiple times with no response." | "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 | Upstack Data | Popsixle | Littledata |
|---|---|---|---|
| 50 orders / month | $299 | $95 | $39 |
| 500 orders / month | $299 | $135 | $199 |
| 5,000 orders / month | $599 | $585 | $449 |
| 20,000 orders / month | $999 | $1095 | $1390 |
For 50 orders, Upstack Data is 214% more expensive than Popsixle and 666% more than Littledata. At 500 orders, Upstack Data and Popsixle are equal, while Littledata is 50% cheaper than both. For 5000 orders, Upstack Data is 2.4% more than Popsixle and 71.5% more than Littledata. At 20000 orders, Upstack Data is 10.5% cheaper than Popsixle and 25% cheaper than Littledata. Overall, Littledata consistently offers the lowest pricing across all order volumes.
| Destination | Upstack Data | Popsixle | Littledata |
|---|---|---|---|
| Meta Ads | ✔️ | ✔️ | ✔️ |
| TikTok | ✔️ | ✔️ | |
| Klaviyo | ✔️ | ✔️ | |
| Google Ads | ✔️ | ✔️ | |
| Google Analytics | ✔️ | ||
| ✔️ | |||
| Segment | ✔️ | ||
| Attentive | ✔️ | ||
| Microsoft Ads | ✔️ |
Upstack Data offers a mid-range destination set covering the core paid and owned channels (Meta, TikTok, Google Ads, Klaviyo).
Popsixle is extremely limited with only Meta Ads, making it a single-channel solution — not ideal for a multi-channel stack.
Littledata has the broadest destination coverage, adding Google Analytics, Pinterest, Segment, Attentive, and Microsoft Ads on top of what Upstack offers — making it the most versatile for brands running complex, multi-platform attribution and wanting a centralized data pipeline through tools like Segment.
Key takeaway: If destination breadth matters, Littledata wins. If you need a focused paid-social + email setup, Upstack is solid. Popsixle is too narrow for a comprehensive solution.
| Feature | Upstack Data | Popsixle | Littledata |
|---|---|---|---|
| Key benefits | |||
| Boost to Event Match Quality Score | ✔️ | ✔️ | ✔️ |
| 100% accurate revenue in Meta | ✔️ | ✔️ | |
| Pre-purchase audiences based on first-party data | ✔️ | ✔️ | |
| Fully automatic setup | ✔️ | ✔️ | |
| Target subscriptions vs one-time purchases | ✔️ | ||
| AddToCart | |||
| Via Conversions API | ✔️ | ✔️ | |
| InitiateCheckout | |||
| Via Conversions API | ✔️ | ✔️ | |
| Includes all checkout steps | ✔️ | ✔️ | |
| Purchase | |||
| Via Conversions API | ✔️ | ✔️ | ✔️ |
| Includes recurring orders | ✔️ | ✔️ | |
| Filters to exclude orders from some channels | ✔️ | ✔️ | |
| Includes post-purchase upsells | ✔️ | ||
| New vs Returning customer conversions | ✔️ | ||
