Side-by-side comparison
Create fully custom, responsive forms to collect wholesale applications, leads, feedback, etc.
Post purchase, NPS & attribution surveys you can query with your own AI. Unlimited responses.
| Metric | FormLab ‑ Custom Form Builder | Grapevine Post Purchase Survey |
|---|---|---|
| Rating | — | 5.0 ★ |
| Total reviews | 0 | 233 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free trial available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | ★ 3 tiers | 1 tier |
| Listed features | 4 |
On the measured data here, Grapevine Post Purchase Survey leads on more dimensions (4 vs 1). Pick FormLab if one of the points where it leads is what you need.
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: FormLab ‑ Custom Form Builder audit • Grapevine Post Purchase Survey audit
| Field | FormLab ‑ Custom Form Builder | Grapevine Post Purchase Survey |
|---|---|---|
| Tagline | ||
| Listing audit | 81/100 listing audit | 94/100 listing audit |
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| ★ 5 |
| Featured placements | — | 2 |
|---|
| Languages | 1 supported | 7 supported |
|---|
| Listed since | Jun 2026 | Aug 2017 |
|---|
| Listed |
|---|
None
None
| Keyword | FormLab ‑ Custom Form Builder | Grapevine Post Purchase Survey |
|---|---|---|
| post purchase survey | Not ranked | #1 |
| post-purchase survey attribution | Not ranked | #1 |
| post-purchase surveys | Not ranked | #1 |
| custom form builder | #10 | Not ranked |
| form builder | #51 | Not ranked |
Not featured in any section recently.
No tracked changes.
| Signal | FormLab ‑ Custom Form Builder | Grapevine Post Purchase Survey |
|---|---|---|
| Average rating | — | 5.0 ★ (233) |
| Rating distribution | 5— 4— 3— 2— 1— | 597% 43% 30% 20% 10% |
No reviews yet.
We use Grapevine to measure NPS and gather feedback from our customers. The app works well in Shopify, is really easy to use, and offers many options at a fair price! It’s an awesome tool for gaining valuable insights about customer experience. The support is also great, Sam responds fast and helps anytime we need. Hig
This app is very user friendly. And the team is super helpful. Highly recommend it!
Works well - And fairly priced - Very Happy
Neither FormLab ‑ Custom Form Builder nor Grapevine Post Purchase Survey lists a free plan. FormLab ‑ Custom Form Builder lists no paid plan with a published price; Grapevine Post Purchase Survey lists no paid plan with a published price. Prices are as listed on the Shopify App Store; check what each tier includes in the Pricing section above.
AppRanks cannot separate these two on rating, because neither publishes one. Grapevine Post Purchase Survey does carry the larger published review base (233 vs 0). 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; Grapevine Post Purchase Survey has more published reviews to read for user-reported install experience (233 vs 0).
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: FormLab ‑ Custom Form Builder has 0 published reviews; Grapevine Post Purchase Survey has 233 published reviews. Compare plan limits and pricing tiers against your own volume.
Migration support varies by app and category. FormLab ‑ Custom Form Builder and Grapevine Post Purchase Survey 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 FormLab ‑ Custom Form Builder" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
This has worked great for us at a good price.