Comparison · 139 merchant reviews read · Updated October 2026
Shoplift vs Curvature AI Price Testing
Short answer
Pick Shoplift if you need price tests and theme tests and you're replacing Google Optimize (8 reviewers made that move).
Pick Curvature AI Price Testing if you want to start on a free plan.
 Shoplift |  Curvature AI Price Testing | |
|---|---|---|
| App Store rating | 4.9★ (133) | 5★ (10) |
| Cost at your traffic | $99+/moStarting price. The listing says price rises with visitors but gives no tiers. | $100/moPrice Testing 0 covers your traffic. |
| How price scales | Starts at $99/month ($74/month billed annually) and goes up with your site's monthly unique visitors, with higher tiers adding features and support. | Free to start with AI pricing recommendations, then paid price testing plans run $100 to $350/month depending on whether you have up to 1,000, 2,500, or 5,000 orders per month. |
| Launched | September 15, 2022 | January 24, 2023 |
| App Store listing | App Store listing |
Curvature AI Price Testing starts at $0 a month, Shoplift at $99
Shoplift
- Core$99/mo
- Advanced$399/mo
- Pro$999/mo
“Based on site-wide monthly unique visitors.”
Curvature AI Price Testing
- Pricing CopilotFree
- Price Testing 0$100/mo
- Price Testing 1$200/mo
- Price Testing 2$350/mo
Only Shoplift can run price tests
Read from each app's listing. A dot means the listing says it can do it.
| Shoplift | Curvature AI Price Testing | |
|---|---|---|
| Price tests | ● | ○ |
| Theme tests | ● | ○ |
| Template tests | ● | ○ |
| Content tests | ● | ○ |
| URL split tests | ● | ○ |
| Visual editor | ● | ○ |
| AI test ideas | ● | ● |
| Audience targeting | ● | ● |
| Heatmaps | ● | ○ |
| Free plan | ○ | ● |
What reviewers complain about
Share of each app's reviews that complain about the topic. Apps under 20 reviews are left out because a single review swings the number.
| Shoplift | |
|---|---|
| Price | 3.9% |
| Billing and refunds | 1.6% |
| Support | 1.6% |
| Bugs | 1.6% |
| Setup | 0.8% |
| Dashboard | 0.8% |
| Reporting and stats | 0% |
| Flicker | 0% |
| Page speed | 0% |
| Integrations | 1.6% |
| What you can test | 2.3% |
| Results | 0.8% |
The most common Shoplift complaint: price
The product itself works as advertised. We like the fact variants load without the original-page flash you get with some client-side testing apps. Two reasons I uninstalled. First, pricing. If you run a high-traffic store, the session-based cost gets very expensive very quickly. In our case several times what comparable tools charge. Check the maths carefully against your own traffic profile…
Shoplift replies to 0% of reviews. Curvature AI Price Testing replies to none
| Shoplift | Curvature AI Price Testing | |
|---|---|---|
| Reviews with a developer reply | 0% | 0% |
| Praise support | 71.3% | 80% |
| Complain about support | 1.6% | 0% |
Serious problems reviewers reported
Billing disputes, broken stores, misused data and missing features. Each one is a single merchant's account.
The product itself works as advertised. We like the fact variants load without the original-page flash you get with some client-side testing apps. Two reasons I uninstalled. First, pricing. If you run a high-traffic store, the session-based cost gets very expensive very quickly. In our case several times what comparable tools charge. Check the maths carefully against your own traffic profile…
Didn't had the change to run split-tests because bugs. $99,- gone for not even live with the app. First of all, the app is buggy and not worth the cost. It is connected to an outdated theme, and I didn’t even have a chance to try it properly. I tried to run a split-test but for some reason it grab the outdated theme. There is no live chat. I will try Intelegems.
Results merchants put a number on
- 45% conversion rate with Shoplift. “increase our conversion rate by 45%”
- up 40% conversion rate with Curvature AI Price Testing, testing lower price point. “CVR up 40%”
- up 19% other with Curvature AI Price Testing, testing lower price point. “profit/visitor up 19%”
- 5-10% other with Curvature AI Price Testing. “recoup 5-10% profit margin per order”
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