The app stopped syncing after the last update and support took a week to reply. We lost orders during the outage and had to switch to a competitor.
Upsell Engine by Square
by Square Apps
Create custom deals with bundles, BOGOs, volume discounts, free gifts and high-converting upsells.
- Rating
- 5.0
- Reviews
- 3
- Pricing from
- —
- Launched
- Jul 2025
First seen 18 Sep 2026 · Data updated 1 week ago
Worst recent reviews
1- and 2-star reviews reveal what this app gets wrong: the gaps a competitor could fill.
About Upsell Engine by Square
Square Upsell Builder increases your AOV with powerful tools like product bundles, Buy X Get Y (BOGO), volume discounts, and free gifts. Show one-click post-purchase upsells, unlock spending goal discounts, or reward bigger orders with free products — all fully customizable and easy to launch. Perfect for pre-purchase, in-cart, or post-checkout upsells, Square Upsell Builder gives you everything you need to grow your revenue fast.
Highlights
- Easily create BOGO deals, bundles, volume discounts, and cart-based gifts
- Upsell anywhere: product page, cart, post-purchase, or based on cart value
- Trigger pre-purchase popups or one-click post-purchase upsells
- Customize pop-ups and embedded offers to match your brand
- Track upsells performance with real-time analytics
Languages
Arabic, Danish, German, English, Spanish, Finnish, French, Japanese, Italian, Norwegian (Bokmål), Dutch, Portuguese (Brazil), Romanian, Swedish, Chinese (Simplified), and Chinese (Traditional)