Your Cart Page Is Leaving Money on the Table — These 5 Apps Fix That

Why bundling and upsells matter more than another traffic push

Getting a new visitor to your store costs money — ads, SEO, influencer spend. Getting an existing visitor to add one more item to their cart costs nothing extra. That's the entire case for upsell and bundle apps: they turn traffic you already paid for into a higher average order value, at checkout, in the cart, or right after purchase. The five apps below all chase that same goal but attack it from different angles — some focus purely on bundles, some cover the whole funnel from product page to thank-you page, and one bundles upsells into a much bigger conversion toolkit.

1. Zipify OneClickUpsell (OCU)

Pros: Covers every offer placement in one app — product page, pre-purchase, slide-cart, one-click post-purchase, checkout (Shopify Plus), and thank-you page. Dynamic AI Offers self-optimize from store data, and it includes built-in A/B testing plus a Shopify Plus Certified Technology Partner badge for native checkout upsells.

Cons: Lower review count (491) and rating (4.5★) than the others here, and the checkout-upsell feature specifically requires Shopify Plus.

Verdict: The strongest pick if you want AI-driven offers across the entire funnel and you're already on Shopify Plus.

2. Selleasy — Upsell & Cross Sell

Pros: Free to install, the largest review base after Kaching (2,435, 4.9★), shows Amazon-style "frequently bought together" bundles, plus in-cart upsells, checkout upsells, and post-purchase offers — and it's built for multi-language and multi-currency stores.

Cons: With so many placement options enabled by default, first-time setup takes more tuning than a single-purpose bundle app.

Verdict: A strong all-rounder if you want the classic "frequently bought together" pattern plus broader upsell coverage, without paying to install.

3. Bundler — Product Bundles App

Pros: 4.9★ across 2,420 reviews, built specifically around bundle mechanics — classic bundles, Mix & Match bundles, quantity breaks, and tiered volume discounts with flexible discount types (percentage, fixed amount, fixed price).

Cons: Narrower scope than Selleasy or Hextom — it's a bundle specialist, not a full upsell-funnel or conversion-toolkit app.

Verdict: The right pick if bundling itself — not upsell popups or urgency tools — is the actual gap in your store.

4. Kaching Bundles App & Upsells

Pros: The highest rating of the five (5.0★) and by far the most reviews (4,819). Free to install, with volume discounts, built-in A/B testing, a revenue-tracking dashboard, and live customer support.

Cons: As with Selleasy, the broad feature set means more initial configuration than a narrow bundle-only tool.

Verdict: The safest default pick given its review volume and perfect rating — hard to go wrong here.

5. Hextom: Upsell Sales Boost

Pros: 4.8★ across 1,428 reviews, and it goes well beyond bundles — 30+ tools including BOGO offers, countdown timers, low-stock urgency, trust and payment badges, and delivery-estimate timers, deployable from landing page through checkout.

Cons: Because it's a broader conversion suite, the bundle and upsell features aren't as deep or specialized as Bundler's or Kaching's.

Verdict: Worth it if you want upsells and bundles bundled (so to speak) with urgency and trust-building tools in one app, rather than installing several single-purpose apps.

How to choose

• Want the safest, most-reviewed default? Kaching Bundles App & Upsells.
• Already on Shopify Plus and want AI-driven offers across the whole funnel? Zipify OneClickUpsell.
• Want the classic "frequently bought together" bundle pattern, free to install? Selleasy.
• Need deep bundle mechanics — Mix & Match, tiered discounts — and nothing else? Bundler.
• Want upsells plus urgency and trust tools in one app instead of five? Hextom: Upsell Sales Boost.

A bigger cart is only half the win — the right fit closes the rest

Bundles and upsells raise average order value, but they only work if the shopper trusts the product will actually fit or suit them — otherwise a bigger cart just means a bigger return. Most virtual try-on apps stop at a nice visual. 1Match treats try-on as a growth engine: it captures leads natively, shows a full conversion funnel, and keeps zero stored photos — on top of best-in-class image quality and multi-category support. It's the try-on app that also does your marketing, working alongside whichever upsell or bundle app you pick above. See also our guide to the best Shopify app for a clothing store.