Side-by-side comparison · 24 data points
Unlock insights with post-purchase surveys for attribution, CRO, CX, product development, and more.
| KNO Post Purchase Surveys | Sellify Post Purchase Upsell | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
Increase AOV with post purchase upsell offers your customers accept in a single click.
| Metric | KNO Post Purchase Surveys | Sellify Post Purchase Upsell |
|---|---|---|
| Rating | 4.9 ★ | ★ 5.0 ★ |
| Total reviews | ★ 117 | 22 |
| Free plan | Yes | Yes |
| Pricing | Free trial available | Free |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | 3 tiers | — |
| Listed features | 5 | 5 |
| Languages | 1 supported | 6 supported |
| Listed since | Oct 2020 | Dec 2024 |
KNO Post Purchase Surveys 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: KNO Post Purchase Surveys at Free trial 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 (seats, usage volume, integrations) varies.
KNO Post Purchase Surveys has the larger user base (117 reviews vs 22), 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 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: KNO Post Purchase Surveys audit • Sellify Post Purchase Upsell audit
| Last updated | — | — |
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| Keyword | KNO Post Purchase Surveys | Sellify Post Purchase Upsell |
|---|---|---|
| post-purchase surveys | #5 | #192 |
| purchase survey | #5 | #23 |
| post-purchase survey attribution | #8 | #205 |
| post purchase survey | #51 | #24 |
| product feedback | #14 | #15 |
No tracked changes.
Both KNO Post Purchase Surveys and Sellify Post Purchase Upsell offer paid plans only. KNO Post Purchase Surveys starts at Free trial available; Sellify Post Purchase Upsell starts at Free. Compare the per-tier features in the Pricing section above before committing.
KNO Post Purchase Surveys (4.9★, 117 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.
Sellify Post Purchase Upsell 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. KNO Post Purchase Surveys has the deeper published review base (117 vs 22), 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.
KNO Post Purchase Surveys typically suits early-stage and growth-mode teams based on its published review base (117 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. KNO Post Purchase Surveys 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.
