Apps for extending your checkout

Build a unique checkout for your business.

4,829 apps
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Faslet Size & Fit
5.0 out of 5 stars 13 total reviews • Free trial available
The right size for more revenue and fewer returns
Variant ‑ AI CRO
5.0 out of 5 stars 6 total reviews • From $1,500/month
Create personalized user journeys for every shopper instantly
Single: musicians & creators
4.4 out of 5 stars 56 total reviews • Free to install
Monetize fans directly with music, video, and memberships
Oak Post Purchase Upsell
5.0 out of 5 stars 5 total reviews • Free
Post purchase upsell made easy. One-click, no caps.
POSify: Custom POS Fields
5.0 out of 5 stars 6 total reviews • Free trial available
Sell custom, personalized & made-to-order products in POS
Pabloo Store Credit & Cashback
2.4 out of 5 stars 14 total reviews • Free plan available
Credit app for Cashback, Memberships, Reviews, and Refunds
Shopwaive Credit, Loyalty & AI
5.0 out of 5 stars 17 total reviews • Free trial available
Create Discounts, Gift Codes, and Store Credit for Checkout
GIT Digital Downloads, E‑books
5.0 out of 5 stars 10 total reviews • Free
Sell any digital product including PDFs license keys and eBook
SE: Option Price Calculator
4.3 out of 5 stars 51 total reviews • Free plan available
Price custom products using formulas, tables and measurements.
RTB House Display Ad Connector
5.0 out of 5 stars 4 total reviews • Free
Fast, intuitive integration for online advertising
Rumi Bundles CartDrawer Free
5.0 out of 5 stars 5 total reviews • Free
Mix & match bundles, A Box, BYOB, Product Page , Volume
Bundle discount quantity break
4.6 out of 5 stars 21 total reviews • Free plan available
Boost AOV with bundles, volume discounts & BOGO. Free forever.
Simmer: Food Service/Cafe POS
5.0 out of 5 stars 14 total reviews • Free trial available
Streamline tickets & modifiers for your food service business
Magic Upsell & Cross Sell
4.6 out of 5 stars 16 total reviews • Free
Boost sales with one-click Magic cross sell & upsell bundles
SpurIT Sales Pop‑up Discount
4.8 out of 5 stars 94 total reviews • Free plan available
Show sales pop-up notifications to encourage customers to buy
NetWise B2B Wholesale Pricing
4.9 out of 5 stars 22 total reviews • Free to install
Set B2B pricing and volume discounts, Quantity Breaks & more
Addora ‑ Buy Now Ship Later
5.0 out of 5 stars 4 total reviews • Free plan available
Shoppers hold and combine orders, pay shipping once
No Brainer: Sale & Compare‑At
5.0 out of 5 stars 1 total reviews • Free
Launch sales in seconds. Bulk-edit prices & compare-at
Rich Bundle Builder BYOB
5.0 out of 5 stars 7 total reviews • Free plan available
Sell More with Product Bundles BYOB Deals and Custom Bundles
DPD Polska
3.8 out of 5 stars 6 total reviews • Gratis
Kurier DPD, punkty DPD Pickup, etykiety nadawcze i zwrotne DPD
BOB: WhatsApp Marketing + AI
5.0 out of 5 stars 78 total reviews • Free trial available
Abandoned cart recovery, AI-powered WhatsApp marketing & chat
Retentics: Repeat Order AI
5.0 out of 5 stars 20 total reviews • Free trial available
Boost email revenue w/ smart recs & timing. Klaviyo compatible
Checkout Cross Sell
5.0 out of 5 stars 1 total reviews • Free trial available
Build checkout cross-sell rules in plain language with AI
Conscious Cart
5.0 out of 5 stars 16 total reviews • Free to install
Drive Revenue Growth with Impactful Cause Marketing
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