Side-by-side comparison
Convert your checkout into a conversion engine with custom checkout rules, fields and customizer.
| Metric | Checkout Blocks & Customizer | ECF: Contact Form Builder |
|---|---|---|
| Rating | ★ 5.0 ★ | 4.9 ★ |
| Total reviews | 11 | ★ 43 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free trial available |
| Pricing tiers | — | 3 tiers |
| Listed features | ★ 5 | 4 |
| Languages | 1 supported | 1 supported |
Checkout Blocks & Customizer and ECF each lead on different measured dimensions — pick by the one that matters most to you.
Built only from the Shopify App Store listing data shown on this page. AppRanks does not accept payment to influence comparisons. Read the methodology
Read each app's audit: Checkout Blocks & Customizer audit • ECF: Contact Form Builder audit
| Field | Checkout Blocks & Customizer | ECF |
|---|---|---|
| Tagline | ||
| Listing audit | 86/100 listing audit | 90/100 listing audit |
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| Listed since | May 2023 | Mar 2020 |
|---|
| Listed |
|---|
None
None
| Keyword | Checkout Blocks & Customizer | ECF |
|---|---|---|
| forms | #50 | #38 |
| form | #51 | #38 |
No tracked changes.
| Signal | Checkout Blocks & Customizer | ECF |
|---|---|---|
| Average rating | 5.0 ★ (11) | 4.9 ★ (43) |
Review text isn't collected for this app yet (11 reviews on the marketplace).
Thanks for helping out. Good customer care service
ECF is an excellent App that has helped us gather user data for numerous projects. The customer support team is also very responsive and always quick to assist.
Really nice app and the customer support has been over and above. Thank you!
The tool is intuitive to use. The forms fulfilled exactly what we were looking for. The customer support and developers were extremely helpful, responsive, and quickly resolved an issue we had.
This app is incredibly user-friendly, with outstanding support and excellent service!
Checkout Blocks & Customizer is cheaper to start with — it offers a free plan and ECF: Contact Form Builder doesn't list one. Prices are as listed on the Shopify App Store; check what each tier includes in the Pricing section above.
Checkout Blocks & Customizer (5.0★, 11 reviews) and ECF: Contact Form Builder (4.9★, 43 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
Checkout Blocks & Customizer holds the higher average rating (5.0★ vs 4.9★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. AppRanks doesn't measure setup time directly; ECF: Contact Form Builder has more published reviews to read for user-reported install experience (43 vs 11).
AppRanks cannot say which fits a larger or smaller operation — there is no store-size measurement in the Shopify App Store data. What it can show: Checkout Blocks & Customizer has 11 published reviews; ECF: Contact Form Builder has 43 published reviews. Compare plan limits and pricing tiers against your own volume.
Migration support varies by app and category. Checkout Blocks & Customizer and ECF: Contact Form Builder both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Checkout Blocks & Customizer" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.