Side-by-side comparison · 24 data points
Add callback option to your store and reach out to your customers
| Mega Callback | ZAP Contact Form Builder | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
Boost your store with top-tier form builders for seamless lead capture and data collection
| Metric | Mega Callback | ZAP Contact Form Builder |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | ★ 14 | 1 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free |
| Built for Shopify | — | — |
| Pricing tiers | 3 tiers | — |
| Listed features | 3 | 3 |
| Languages | 1 supported | 1 supported |
| Listed since | May 2018 | Feb 2026 |
Mega Callback and ZAP Contact Form Builder are evenly matched on rating (5.0★ vs 5.0★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow.
Pricing entry tiers: Mega Callback at Free plan available, ZAP Contact Form Builder at Free. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (seats, usage volume, integrations) varies.
Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort for 7-14 days before committing. The data tables below show the per-feature breakdown — for most merchants the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone.
This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.
Read each app's audit: Mega Callback audit • ZAP Contact Form Builder audit
| Keyword | Mega Callback | ZAP Contact Form Builder |
|---|---|---|
| forms | #210 | #40 |
| form | #224 | #38 |
Both Mega Callback and ZAP Contact Form Builder offer paid plans only. Mega Callback starts at Free plan available; ZAP Contact Form Builder starts at Free. Compare the per-tier features in the Pricing section above before committing.
Mega Callback (5.0★, 14 reviews) and ZAP Contact Form Builder (5.0★, 1 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
AppRanks cannot separate these two on rating — both sit at 5.0★. Mega Callback does carry the larger published review base (14 vs 1). Read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. Mega Callback has the deeper published review base (14 vs 1), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.
Mega Callback typically suits early-stage and growth-mode teams based on its published review base (14 reviews). ZAP Contact Form Builder typically suits early-stage and growth-mode teams based on its published review base (1 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.
Migration support varies by app and category. Mega Callback and ZAP 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 ZAP Contact 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.