Side-by-side comparison · 24 data points
Build your contact us form or custom form without any technical knowledge required
| Powerful Contact Form Builder | Sellify Post Purchase Upsell | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
Boost AOV Instantly: One-Click Upsell, Post purchase upsell, Thank you page upsell, Survey
| Metric | Powerful Contact Form Builder | Sellify Post Purchase Upsell |
|---|---|---|
| Rating | 4.9 ★ | ★ 5.0 ★ |
| Total reviews | ★ 2.3k | 18 |
| Free plan | Yes | Yes |
| Pricing | Free plan available | Free |
| Built for Shopify | Yes | Yes |
| Pricing tiers | 3 tiers | — |
| Listed features | 5 | 5 |
| Featured placements | 5 | — |
| Review velocity (30d) | 67 new | — |
| Languages | 8 supported | 1 supported |
| Listed since | Oct 2017 | Dec 2024 |
Powerful Contact Form Builder and Sellify Post Purchase Upsell are evenly matched on rating (4.9★ 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: Powerful Contact Form Builder at Free plan available, Sellify Post Purchase Upsell 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 (apps, orders, integrations) varies. Powerful Contact Form Builder has the larger user base (2,315 reviews vs 18), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Sellify Post Purchase Upsell's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat. Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort of orders 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: Powerful Contact Form Builder audit • Sellify Post Purchase Upsell audit
| Last updated | — | — |
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| Keyword | Powerful Contact Form Builder | Sellify Post Purchase Upsell |
|---|---|---|
| product feedback | #1 | #17 |
| surveys | #5 | #19 |
| survey | #5 | #22 |
Not featured in any section recently.
| Signal | Powerful Contact Form Builder | Sellify Post Purchase Upsell |
|---|---|---|
| Average rating | 4.9 ★ (2.3k) | 5.0 ★ (18) |
| Rating distribution | 593% 44% 31% 21% 11% | 5— 4— 3— 2— 1— |
| Reviews · last 7 days | +18 | — |
| Reviews · last 30 days | +67 | — |
| Reviews · last 90 days | +178 | — |
Both Powerful Contact Form Builder and Sellify Post Purchase Upsell offer paid plans only. Powerful Contact Form Builder starts at Free plan available; Sellify Post Purchase Upsell starts at Free. Compare the per-tier features in the Pricing section above before committing.
Powerful Contact Form Builder (4.9★, 2,315 reviews) and Sellify Post Purchase Upsell (5.0★, 18 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
It depends on what you're optimizing for. Powerful Contact Form Builder fits better if you prioritize broader integrations; Sellify Post Purchase Upsell is the call if you need the higher-rated option. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Shopify App Store marketplace. Powerful Contact Form Builder has more onboarding documentation maturity (2,315 reviews vs 18), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
Powerful Contact Form Builder typically suits early-stage and growth-mode stores based on its review-base composition (2,315 reviews). Sellify Post Purchase Upsell aligns more with early-stage and growth-mode stores (18 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
This is a great form app, we have been using it really happily for 2 years. But I have only needed customer support now, when bots have started to use it to register in huge amounts; Emma was fast to amend my settings, but also showed me how in case I needed to do the same on other forms. Brilliant service, thank you.
Der Support mit Taylor war hilereich und effizient
The app has all the features I need and when I have had trouble with something due to my own knowledge limitations, Taylor from support has been prompt and very helpful to figure it out. I was surprised I was talking to an actual human in the help chat and she was great. The app also has some ai assistance to create fo
This APP is feature-rich and easy to customize. Shoutout to Emma for super quick support—she fixed all my email setup problems step by step, couldn’t ask for better service.
No reviews yet.
Migration support varies by app and category. Powerful Contact Form Builder and Sellify Post Purchase Upsell 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 Sellify Post Purchase Upsell" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
