Kaching Bundles App & Upsells vs DerFit ‑ Size Recommender

Kaching Bundles App & Upsells and DerFit ‑ Size Recommender 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: Kaching Bundles App & Upsells at Free to install, DerFit ‑ Size Recommender at Free trial 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 1), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. DerFit ‑ Size Recommender'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.

Is Kaching Bundles App & Upsells or DerFit ‑ Size Recommender cheaper?

Both Kaching Bundles App & Upsells and DerFit ‑ Size Recommender offer paid plans only. Kaching Bundles App & Upsells starts at Free to install; DerFit ‑ Size Recommender starts at Free trial available. Compare the per-tier features in the Pricing section above before committing.

Which has better reviews, Kaching Bundles App & Upsells or DerFit ‑ Size Recommender?

Kaching Bundles App & Upsells (5.0★, 5,849 reviews) and DerFit ‑ Size Recommender (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.

Should I choose Kaching Bundles App & Upsells or DerFit ‑ Size Recommender?

AppRanks cannot separate these two on rating — both sit at 5.0★. Kaching Bundles App & Upsells does carry the larger published review base (5,849 vs 1). Read both apps' detail pages for the feature breakdown and recent listing changes.

Which is faster to set up, Kaching Bundles App & Upsells or DerFit ‑ Size Recommender?

Both apps are one-click installs from the Shopify App Store. Kaching Bundles App & Upsells has the deeper published review base (5,849 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.

Which works better for small vs large Shopify App Store merchants?

Kaching Bundles App & Upsells typically suits established teams with steady usage based on its published review base (5,849 reviews). DerFit ‑ Size Recommender 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.