In this guide
These three apps all lift average order value, but they attack the problem from different surfaces. Rebuy owns the smart cart drawer, Zipify OneClickUpsell owns the post-purchase thank-you page, and ReConvert (now Upsell.com) covers both surfaces in one app at a lower combined cost, with less depth at each. There's no universally better option; the right pick depends on where your AOV is actually leaking and your order volume.
Fast summary
- Rebuy wins for high-GMV, high-AOV stores optimizing the cart itself, at a real cost premium.
- Zipify OneClickUpsell wins for post-purchase upsells, with pricing that stays flat past 5,000 orders/month.
- ReConvert (Upsell.com) covers both surfaces at lower combined cost, with less depth at each, the right fit below $1M GMV.
- The right pick depends on where your AOV is actually leaking, not on which app has the most features.
Recommended platform
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Where each app focuses
| Rebuy | Zipify OCU | ReConvert | |
|---|---|---|---|
| Surface | Cart drawer & checkout | Post-purchase thank-you page | Both, shallower at each |
| Best for | $1M+ GMV, $50+ AOV | Under $2M GMV | Stores not ready for two specialist apps |
| Cost at 50k orders/mo | $1,749 | $399 | Scales with volume |
Swipe horizontally to compare every column.
Pricing figures approximate based on 2026 industry comparisons; confirm current pricing before committing.
Rebuy: the smart cart for stores with real scale
Rebuy uses AI-driven recommendations inside the cart drawer and checkout, widely considered one of the strongest smart carts on Shopify. It fits stores doing $1M+ GMV with an AOV above $50, where the cost premium (over 4x Zipify OCU's price at 50,000 monthly orders) is justified by how much revenue a small AOV lift represents at that scale.
Zipify OneClickUpsell: the dedicated post-purchase page
Zipify OneClickUpsell lets customers accept a second offer immediately after checkout with no payment re-entry, with native acceptance rates commonly running 8 to 14 percent. Its pricing stays flat well past 5,000 monthly orders, which is a real structural advantage as you scale, unlike competitors whose cost keeps climbing.
ReConvert: both surfaces, lower combined cost
ReConvert, now rebranded Upsell.com, covers cart and post-purchase upsells in one app, at a lower combined cost than running Rebuy and Zipify OCU separately, trading away some depth at each surface. It's the sensible default for a store not yet doing the volume that would justify two specialist apps.
Frequently asked questions
ReConvert (Upsell.com), since it covers both the cart and post-purchase surfaces in one app at lower combined cost, which suits a store that isn't yet doing enough volume to justify two specialist tools.