Side-by-side comparison · 24 data points
Increase your average order value with offering bundles, gifts, and applying volume discounts!
| Kaching Bundles App & Upsells | Fastrr Promise | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
Smart, accurate EDD solution that helps improve conversion by providing delivery clarity.
| Metric | Kaching Bundles App & Upsells | Fastrr Promise |
|---|---|---|
| Rating | ★ 5.0 ★ | 3.0 ★ |
| Total reviews | ★ 5.8k | 11 |
| Free plan | Yes | Yes |
| Pricing | Free to install | Free plan available |
| Built for Shopify | ★ Yes | — |
| Pricing tiers | 4 tiers | 4 tiers |
| Listed features | 5 | 5 |
| Featured placements | 5 | — |
| Languages | 9 supported | 1 supported |
| Listed since | Aug 2022 | Sep 2025 |
Based on the data on this page, Kaching Bundles App & Upsells is the stronger choice for most Shopify App Store merchants — 5.0★ vs Fastrr Promise's 3.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base.
Pricing entry tiers: Kaching Bundles App & Upsells at Free to install, Fastrr Promise at Free plan available. 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.
Kaching Bundles App & Upsells has the larger user base (5,849 reviews vs 11), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Fastrr Promise's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.
Recommended by size: small/early-stage merchants who need fast install and low risk should default to Kaching Bundles App & Upsells; mid-market and enterprise merchants with specific feature requirements should evaluate both — Fastrr Promise's 11-review base may include the workflow context that matches your specific use case better than Kaching Bundles App & Upsells's broader-but-shallower coverage.
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: Kaching Bundles App & Upsells audit • Fastrr Promise audit
| Last updated | — | — |
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| Keyword | Kaching Bundles App & Upsells | Fastrr Promise |
|---|---|---|
| upsell | #1 | Not ranked |
| upsell and | #1 | Not ranked |
| upsells | #1 | Not ranked |
| grow faster | Not ranked | #22 |
Not featured in any section recently.
Both Kaching Bundles App & Upsells and Fastrr Promise offer paid plans only. Kaching Bundles App & Upsells starts at Free to install; Fastrr Promise starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
Kaching Bundles App & Upsells has the higher average rating (5.0★ from 5,849 reviews) compared to Fastrr Promise (3.0★ from 11 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
Kaching Bundles App & Upsells holds the higher average rating (5.0★ vs 3.0★). 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. Kaching Bundles App & Upsells has the deeper published review base (5,849 vs 11), 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.
Kaching Bundles App & Upsells typically suits established teams with steady usage based on its published review base (5,849 reviews). Fastrr Promise typically suits early-stage and growth-mode teams based on its published review base (11 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. Kaching Bundles App & Upsells and Fastrr Promise 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 Fastrr Promise" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
