Tilly vs Shoplift

Shoplift runs split tests on your theme, launched from the Shopify customizer, without page flicker.

Pick Shoplift if testing your storefront is your main lever and you have the traffic. Pick Tilly if you do not yet know what to change. Tilly reads your pages and reviews, finds what stops buyers, writes the fix (product and collection text applies with one click, with Undo), plans and sizes the test and calls the winner, while a testing app such as Shoplift splits the traffic. Try the free audit: paste your store URL and see in about a minute what Tilly would fix first.

Shoplift is a split-testing app for Shopify themes, rated 4.9 out of 5 on its listing. source, checked 25 September 2026

You launch tests from inside the Shopify theme customizer, or let Lift Assist build them without code, on product pages, landing pages, collections, the homepage, prices and search. Tests run without page flicker, theme tests cover rebrands, navigation and the mini-cart, and price testing starts on the Advanced plan.

Each app’s cells come from its own Shopify listing or pricing page, linked beside the words. “Not listed” means we did not find it there, not that the app cannot do it. Tilly’s column is our own product.

Shoplift's figures come from its pricing page and Shopify App Store listing, each cell linked and dated. Its prices depend on monthly unique visitors; we show the published plan prices and the starting prices the listing gives.

Shoplift's Shopify listing prices Core at $99 a month, Advanced at $399 and Pro at $999, with starting prices of $74, $299 and $699 depending on site-wide monthly unique visitors, and annual billing saving up to 30%. Core covers up to 100k monthly store visitors, price testing starts on Advanced, and there is a 14-day free trial.

Tilly charges per piece of work: 20 credits for a CRO audit, 10 for each written fix and 10 for an A/B test including the variants. The Store plan is $49 a month for 500 credits, after 100 free credits, and the same credits cover email, ads and blog posts.

For a store that tests one page a month, the difference is mostly about who writes the variant. For a store testing constantly across many templates, Shoplift is the specialist and priced as one.

The last table prices the same store on both. These apps price by visitors, orders or tested users, so check each calculator for your store. Tilly does not split traffic: it plans the tests, writes the changes and calls the winner, next to a testing app rather than instead of one.

Shoplift's advantages come first. For storefront testing, it goes further than Tilly. source, checked 25 September 2026

• Theme and template testing: whole themes for a rebrand, navigation and the mini-cart can be tested, which Tilly's experiments agent does not do.
• Price testing on the Advanced plan and above. Tilly never changes prices.
• It is built into the theme customizer and runs tests without page flicker, which matters when small changes are being measured.
• A strong App Store record: a 4.9 rating when we checked.

Tilly writes the change as well as testing it. The CRO agent reviews product, collection, cart and home pages, mobile first, and ties each finding to a customer and an objection from your reviews. The fix, new copy, reordered sections, trust blocks and FAQ in your customers' words, is built on a preview copy of your theme.

It learns from your own results. Every night it reads what each email, ad, post and page change earned, keeps the patterns your numbers back up, and writes the next piece with them, so a winning ad angle can become an email subject line and a product-page headline. Shoplift tells you which page version won; Tilly takes that lesson into your emails and ads as well. (How the loop works.)

It also watches two things most marketing tools miss: whether AI assistants name your store when asked your buyers' questions, the part of search now called AEO (how to get named by ChatGPT), and every change made to your theme, products, pages and menus, with what each said before and after.

It tests beyond the store. The same experiments agent tests email subject lines, content and send times in Klaviyo, and ad creative and angles in Meta, so one backlog of ideas covers every channel.

Its ideas come with reasons. Each test is written as a hypothesis naming the persona and the worry it addresses, so a win tells you why, and the result is written into your brand profile for the next email, ad or page fix to use.

It calls winners conservatively, with a minimum sample, a maximum run time and one primary metric set in advance, and it says plainly when a test did not gather enough data.

It starts before a test is needed. Small, low-risk fixes can ship straight from the preview theme without a test at all, which matters for stores whose traffic would take months to reach a result.

You can run both. Shoplift can keep testing themes and prices while Tilly's CRO agent writes fixes, but avoid two tools testing the same page at once, or neither result is clean.

If you move page tests to Tilly, end live Shoplift experiments first and apply the winners you want to keep, so the live theme reflects them before Tilly's CRO audit reads it.

Start with Tilly's free store audit, then a CRO audit on the page that matters most. Small, low-risk fixes can ship straight from the preview theme; bigger ones become tests with the hypothesis written.

If price tests are part of your plan, keep a tool that supports them. Tilly will not replace that part of Shoplift.