Side-by-side comparison · 24 data points
Increase your average order value with offering bundles, gifts, and applying volume discounts!
| Kaching Bundles App & Upsells | FosterFlow | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
FosterFlow: email & popup automation. Boost sales with personalized, high-deliverability campaigns
| Metric | Kaching Bundles App & Upsells | FosterFlow Email Marketing |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | ★ 4.7k | 4 |
| 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 |
Kaching Bundles App & Upsells and FosterFlow Email Marketing 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, FosterFlow Email Marketing 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 (apps, orders, integrations) varies. Kaching Bundles App & Upsells has the larger user base (4,675 reviews vs 4), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. FosterFlow Email Marketing'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: Kaching Bundles App & Upsells audit • FosterFlow Email Marketing audit
| Last updated | — | — |
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| Keyword | Kaching Bundles App & Upsells | FosterFlow |
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| upsells | #3 | Not ranked |
| bundle | #3 | Not ranked |
| bundles | #3 | Not ranked |
| your email list | Not ranked | #19 |
| email list with | Not ranked | #24 |
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No tracked changes.
Both Kaching Bundles App & Upsells and FosterFlow Email Marketing offer paid plans only. Kaching Bundles App & Upsells starts at Free to install; FosterFlow Email Marketing starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
Kaching Bundles App & Upsells (5.0★, 4,675 reviews) and FosterFlow Email Marketing (5.0★, 4 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. Kaching Bundles App & Upsells fits better if you prioritize broader integrations; FosterFlow Email Marketing is the call if you need the larger user base. 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. Kaching Bundles App & Upsells has more onboarding documentation maturity (4,675 reviews vs 4), 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.
Kaching Bundles App & Upsells typically suits early-stage and growth-mode stores based on its review-base composition (4,675 reviews). FosterFlow Email Marketing aligns more with early-stage and growth-mode stores (4 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.
Migration support varies by app and category. Kaching Bundles App & Upsells and FosterFlow Email Marketing 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 FosterFlow Email Marketing" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
