Side-by-side comparison · 24 data points
Analyze and measure customer sentiment with full automation and customizable survey templates.
| Callexa NPS Feedback | Sellify Post Purchase Upsell | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
Increase AOV with post purchase upsell offers your customers accept in a single click.
| Metric | Callexa NPS Feedback | Sellify Post Purchase Upsell |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | 1 | ★ 22 |
| Free plan | Yes | Yes |
| Pricing | Free | Free |
| Built for Shopify | — | ★ Yes |
| Listed features | 3 | ★ 5 |
| Languages | 1 supported | 6 supported |
| Listed since | Dec 2017 | Dec 2024 |
Callexa NPS Feedback and Sellify Post Purchase Upsell 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: Callexa NPS Feedback at Free, 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 (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: Callexa NPS Feedback audit • Sellify Post Purchase Upsell audit
| Listed |
|---|
| Last updated | — | — |
|---|
| Keyword | Callexa NPS Feedback | Sellify Post Purchase Upsell |
|---|---|---|
| product feedback | #58 | #15 |
| survey | #88 | #22 |
| survey quiz | #221 | #164 |
No tracked changes.
Both Callexa NPS Feedback and Sellify Post Purchase Upsell offer paid plans only. Callexa NPS Feedback starts at Free; Sellify Post Purchase Upsell starts at Free. Compare the per-tier features in the Pricing section above before committing.
Callexa NPS Feedback (5.0★, 1 reviews) and Sellify Post Purchase Upsell (5.0★, 22 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★. Sellify Post Purchase Upsell does carry the larger published review base (22 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. Sellify Post Purchase Upsell has the deeper published review base (22 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.
Callexa NPS Feedback typically suits early-stage and growth-mode teams based on its published review base (1 reviews). Sellify Post Purchase Upsell typically suits early-stage and growth-mode teams based on its published review base (22 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. Callexa NPS Feedback 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 Callexa NPS Feedback" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
