All cart customization apps with features for additional fees

Add a "buy now" button, sticky add to cart, or whatever else helps customers complete their purchase.

373 apps with

Additional fees

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Upsell App by Essentialwolf
4.8 out of 5 stars 297 total reviews • Free
Increase AOV with one click Upsell & Cross Sells
Timex Low Stock Counter Timer
4.7 out of 5 stars 257 total reviews • Free
Urgency & FOMO low stock countdown timer bar & cart countdown
AutoCart: Gift With Purchase
4.6 out of 5 stars 10 total reviews • Free plan available
Auto add gifts, discounted or companion products to the cart
Cart Upsell—Slide Cart Drawer
4.9 out of 5 stars 100 total reviews • Free plan available
Cart Upsell—Boost Sales with Slide Cart Drawer Offers
Also Bought CBB
4.9 out of 5 stars 343 total reviews • Free plan available
Premium cross-sell related product recommendations
Instant Checkout ‑ Buy button
4.7 out of 5 stars 41 total reviews • Free trial available
Skip cart & redirect to checkout page when clicked on Buy Now
Oxify Slide Cart Drawer Upsell
5.0 out of 5 stars 21 total reviews • Free trial available
Slide cart drawer with free gifts with purchase & cart upsell
Slide Carty ‑ Upsell & Gift
4.9 out of 5 stars 34 total reviews • Free plan available
Integrate a SlideCart Upsells/Cross-sells & Rewards and more
Libautech: Sticky Add to Cart
5.0 out of 5 stars 7 total reviews • Free trial available
Boost sales with buy buttons that stay visible as users scroll
Apex Cart Progress Bar
4.4 out of 5 stars 39 total reviews • Free plan available
Boost your AOV by offering Cart Discounts & Free Shipping
Assortion: Upsell & Bundles
4.8 out of 5 stars 328 total reviews • Free plan available
Create product bundles, volume discount, and upsell offers
Virtue ‑ Charity Donations
5.0 out of 5 stars 48 total reviews • Free to install
Donate to UK, CA & Global Charities. Store & Customer giving.
upnova ‑ Bundles, Cart Upsell
4.9 out of 5 stars 49 total reviews • Free plan available
Craft attractive upselling offers and increase your AOV
Shiprocket Smart Cart
4.7 out of 5 stars 16 total reviews • Free trial available
Customizable cart with milestone rewards and upsell offers
Uplinkly Sticky Cart
4.8 out of 5 stars 21 total reviews • Free plan available
Avoid lost sales abandonment by showing a sticky add to cart.
Carty: Cart Upsell Cart Drawer
5.0 out of 5 stars 57 total reviews • Free plan available
Boost Sales with In-Cart Upsells, Free Gifts, Rewards & Deals
Sticky Add To Cart Bar Pro
4.9 out of 5 stars 43 total reviews • Free plan available
Increase your revenue by having a smart Sticky Add To Cart bar
Zotasell: AI Upsell‑Cross Sell
5.0 out of 5 stars 35 total reviews • Free trial available
Boost AOV, cross sell & upsell with AI product recommendations
Ymq Cart Drawer & Cart Upsell
4.8 out of 5 stars 36 total reviews • Free plan available
Slide Cart with Reward Bar & Upsell & Add-on To Increase AOV
PF: Buy Now Skip Cart Checkout
4.0 out of 5 stars 26 total reviews • Free plan available
Skip to checkout: Sticky add to cart Apple Pay buy now button
Wowcart ‑ Slide Cart Drawer
4.9 out of 5 stars 26 total reviews • Free
Build a cart drawer with discount code and cart upsell support
Reorder Master ‑ Repeat Orders
5.0 out of 5 stars 56 total reviews • Free plan available
Bulk reordering and repeat orders from past orders in 1-click
BOLD AI Upsell & Cross‑Sell
4.3 out of 5 stars 590 total reviews • Free to install
Boost Sales + AOV. AI Cart Upsells or FBT Checkout Cross-Sells
Savify Automatic Discounts
5.0 out of 5 stars 9 total reviews • Free plan available
Complete order, product & shipping discounts automation
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