AddUp Checkout Customizer
Free trialAddUp helps you customize Shopify checkout with rules, discounts, upsells, shipping and payment controls, validation, and branded experiences.





Merchant Reviews
30-Day Trends
Category Rankings
- Category
Marketing and conversion apps > Checkout apps
Make checkout the easiest part of your shopping experience.
Rank: 328 / 495
Last seen 2026-08-22
Rank: 162 / 354
Last seen 2026-08-22
- Category
Marketing and conversion apps > Upsell and bundle apps > Upsell and cross-sell apps
Tempt them with upgrades, “pairs well with,” and other hard-to-resist items.
Rank: 446 / 1062
Last seen 2026-08-22
Collection Rankings
- Collection
Apps for extending your customer accounts
Supercharge the account experience so customers can do more when they log in.
Rank: 870 / -24
Last seen 2026-08-23
Rank: 2743 / 5349
Last seen 2026-08-22
Rank: 2743 / 5349
Last seen 2026-08-22
Rank: 2743 / 5349
Last seen 2026-08-22
Rank: 2741 / -24
Last seen 2026-08-22
Rank: 2743 / -24
Last seen 2026-08-22
- Collection
Apps for extending your customer accounts
Supercharge the account experience so customers can do more when they log in.
Rank: 870 / -24
Last seen 2026-08-23
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