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: 316 / 495
Last seen 2026-06-14
- 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: 479 / 931
Last seen 2026-06-13
Rank: 155 / 306
Last seen 2026-06-13
Collection Rankings
Rank: 2540 / 4332
Last seen 2026-06-13
Rank: 2540 / 4332
Last seen 2026-06-13
- Collection
Apps for extending your customer accounts
Supercharge the account experience so customers can do more when they log in.
Rank: 820 / 1215
Last seen 2026-06-13
- Collection
Apps for extending your customer accounts
Supercharge the account experience so customers can do more when they log in.
Rank: 820 / 1215
Last seen 2026-06-13
Rank: 2543 / 4334
Last seen 2026-06-13
Rank: 2542 / -24
Last seen 2026-06-13
Rank: 2543 / 4334
Last seen 2026-06-13
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