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.
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 |
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.
Key takeaways
- 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.
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.