Best Appifyfor Shopify merchantsBest Appifyfor Shopify merchants
Cart Lock validates orders on Shopify using custom rules like cart total, discount, shipping countries, customers etc for checkout, cart, and product pages.
Free plan available, paid plans from $6.99/month. Prices are the published USD list prices on the Shopify App Store and exclude usage charges.
| Plan | Price |
|---|---|
| Free Development | Free |
| Essential | $6.99/month |
| Professional | $9.99/month |
| Elite | $19.99/month |
The top plan is 2.9× the entry plan, a normal spread — the tiers are most likely gated on volume rather than on features.
We track Shopify App Store search results daily. Cart Lock:Block Checkout Rules currently sits at #1 for “cart lock”, and is in the top 10 for 9 of the terms we track it on.
| Search term | Position | How contested |
|---|---|---|
| cart lock | #1 | Hard(63/100) |
| cart block | #2 | Moderate(46/100) |
| quantity limit | #5 | Approachable(36/100) |
| checkout rules | #7 | Approachable(34/100) |
| quantity discount | #7 | Moderate(56/100) |
| minimum order quantity | #8 | Moderate(41/100) |
| blocky | #8 | Moderate(46/100) |
| lock | #10 | Moderate(48/100) |
| minimum order | #10 | Approachable(38/100) |
| versand | #12 | Moderate(47/100) |
| ruleta | #12 | Moderate(43/100) |
| block country | #12 | Moderate(49/100) |
Its most contested win is “cart lock” at #1, a term we score 63/100 for difficulty — the apps competing for it hold thousands of reviews between them.
Showing its 12 strongest positions of 25 tracked search terms.
Cart Lock:Block Checkout Rules has a free plan, and paid plans start at $6.99 per month. The free tier is normally capped on volume, so check the limit against what your store does today.
Cart Lock:Block Checkout Rules publishes 4 plans: Free Development (free), Essential at $6.99/month, Professional at $9.99/month, Elite at $19.99/month. These are list prices from the Shopify App Store and exclude any usage-based charges.
Cart Lock:Block Checkout Rules holds 4.8 out of 5 from 78 merchant reviews. That is a small sample, so weigh the rating lightly — read the most recent reviews and judge the app on its features and support instead.
Cart Lock:Block Checkout Rules currently ranks #1 for "cart lock" in Shopify App Store search, based on our daily rank tracking.
Run a free audit of your store to see what you already have installed, which apps overlap, and where you are paying twice.
Run a free store audit