Shopify store owners lose revenue every day to abandoned carts. The right cart modification app fixes that. These ten apps help you increase average order value (AOV), reduce cart abandonment, and create a smoother checkout experience – without writing a single line of code.
Smile: Loyalty & Rewards
Smile: Loyalty Program Rewards
By Smile.io
Rating: 4.9 ⭐ (4,134 reviews) | Free plan available.
Repeat customers spend more than new ones. Smile builds loyalty programs that keep shoppers coming back through points, referrals, and VIP rewards.
Key features:
- Points earned for purchases, sign-ups, birthdays, and reviews
- VIP tier program for high-value customers
- On-site Nudges to prompt reward redemption at checkout
- Integrates with email, review, and customer service apps
- Fully customizable widget – no coding required
Best for brands focused on long-term customer retention and lifetime value.
In Cart Upsell & Cross Sell
ICU• In Cart Upsell Cross Sell
By In Cart Upsell
Rating: 4.8 ⭐ ( 575 reviews) | Free plan available. 30-day free trial.
Customers buy more when you offer the right product at the right moment. In Cart Upsell & Cross Sell places targeted upsell and cross-sell offers directly on the product page or cart – no popups, no friction.
Key features:
- AI-powered product recommendations (Autopilot mode)
- Conditional logic targeting by location, cart quantity, and customer tags
- BOGO, free product, and discounted upsell offers
- Built-in A/B testing with automatic optimization
- Native Shopify discount code integration
- Real-time conversion tracking dashboard
Best for stores that want popup-free upsells that blend naturally into the shopping flow.
Orichi Upsell & Cross Sell
Orichi Upsell & Cross Sell
By ORICHI
Rating: 0.0 ⭐ (New App) | Free
Post-purchase is the highest-converting moment in the buyer journey. Orichi Upsell & Cross Sell captures that moment by presenting one-click upsell offers immediately after checkout — no re-entry of payment details required.
Key features:
- One-click post-purchase upsell offers — no coding needed
- Targeting rules based on minimum order value, country, and more
- Fully customizable upsell offers to match your store’s branding
- Simple setup with flexible targeting controls
- Instant support from the Orichi team
- Integrates with Checkout, Shopify Admin, Katching, Zipify OCU, and ReConvert
Best for stores that want to capture additional revenue after checkout without interrupting the purchase flow.
TnC: Terms and Conditions Box
TnC: Terms and Conditions Box
By Effective Apps
Rating: 4.9 ⭐ (463 reviews) | Free plan available. 7-day free trial.
GDPR compliance and legal protection start at the cart. This app adds a customizable terms and conditions checkbox that customers must tick before checkout.
Key features:
- One-click installation – no code required
- Supports PayPal, Google Pay, Apple Pay, Amazon Pay, and Buy It Now buttons
- Records consent date and time in order details
- Country-specific and product-specific display rules
- Rich text editor for custom checkbox messaging
- Compatible with all Shopify themes and POS
Best for stores selling to EU customers or any merchant needing documented customer consent.
EasySell COD Form & Upsells
EasySell COD Form & Upsells
By Tyslo
Rating: 4.9 ⭐ (769 reviews) | Free plan available. 7-day free trial.
Cash-on-delivery markets need a different checkout flow. EasySell replaces the standard Shopify checkout with a simple embedded or popup order form, no online payment required.
Key features:
- Embedded or popup order form on product and cart pages
- One-click post-purchase upsell funnels
- SMS OTP verification for phone number validation
- Automatic Google Sheets order export
- Multi-pixel support (Facebook, TikTok, Snapchat)
- Fully translatable with auto store language detection
Best for merchants in COD-dominant markets such as the Middle East, Southeast Asia, and North Africa.
Cartly Slide Cart Drawer
Cartly Slide Cart Drawer
By CAPITALIPLY LLC
Rating: 4.9 ⭐ (81 reviews) | Free plan available. 7-day free trial.
A slide cart keeps customers on-page while they shop. TCC’s cart drawer replaces the default cart with an enhanced sidebar that drives upsells and reduces friction at checkout.
Key features:
- Cart upsell and cross-sell with up to 5 product suggestions
- Upsell strategies: frequently bought together, recently viewed, new arrivals, seasonal offers
- Coupon code field and rewards module inside the cart
- Announcement bar for promotions and new product launches
- Floating cart icon for constant cart visibility
- Integrates with ReCharge, PageFly, GemPages, Bold Subscriptions, and more
Best for stores that want a full-featured drawer cart with built-in upsell logic.
Essential Free Shipping Bar
Essential Free Shipping Upsell
By Essential Apps
Rating: 5.0 ⭐ (728 reviews) | Free
A free shipping bar is one of the highest-ROI cart tools available. Essential Free Shipping Bar shows customers exactly how much more they need to spend to unlock free shipping, motivating larger orders.
Key features:
- Unlimited cart goal progress bars (free shipping, discount codes, custom goals)
- 6 pre-built bar styles compatible with any theme
- Product page upsell integration
- Fully customizable design with no watermarks
- Supports Shopify OS 2.0 themes
- Mobile optimized, zero store speed impact
Best for stores offering free shipping thresholds who want a lightweight, no-cost AOV booster.
RT: Terms and Conditions Box
RT: Terms and Conditions Box
By RoarTheme
Rating: 4.9 ⭐ (305 reviews) | Free
A free alternative for adding legal consent checkboxes to the cart. ROAR records customer agreement and protects merchants operating under GDPR requirements.
Key features:
- Checkbox on cart page or Ajax/dynamic cart
- Consent date and time saved in order details
- Multiple visual skins with custom animations
- Customizable colors, borders, fonts, and text
- Popup fallback when checkbox placement is unavailable
Important: The checkbox relies on Shopify cart attributes, which are not supported by the native “Buy Now” dynamic checkout button. Orders placed via Buy Now will not capture consent data.
Best for merchants who need a free, straightforward terms and conditions solution.
Monster Cart Upsell + Free Gift
Monster Cart Upsell + Free Gift
By Monster Apps
Rating: 4.6 ⭐ (501 reviews) | Free plan available. 10-day free trial.
MonsterUpsells builds a fully branded cart drawer loaded with conversion-focused features designed to feel natural, not pushy.
Key features:
- Add-to-unlock goals (free gift, free shipping, discounts)
- Buy More Save More tiered pricing
- One-tick upsells (gift wrapping, shipping protection, warranty)
- Frequently bought together powered by Shopify machine learning
- Sticky Add to Cart button
- Progress bars and COD checkout support
- Analytics dashboard for campaign performance
Best for stores with large product catalogs that want data-driven upsell automation.
UpCart Cart Drawer Cart Upsell
Upcart Cart Drawer Cart Upsell
By Rokt
Rating: 4.6 ⭐ (730 reviews) | Free plan available. 7-day free trial.
UpCart delivers a fully branded drawer cart experience with urgency features and upsell blocks that convert browsers into buyers.
Key features:
- Countdown timer bar to create purchase urgency
- Free shipping and discount promotion progress bar
- Upsell and cross-sell product block inside the cart
- Add-on block for insurance, priority shipping, and gift options
- Sticky cart bubble for constant cart visibility on mobile
- Full custom HTML and CSS support
- Multi-language translation support
Best for mobile-first stores that want a polished, on-brand cart drawer with urgency mechanics.
How to Choose the Right Cart Modification App
| Goal | Recommended App |
|---|---|
| Increase AOV with upsells | In Cart Upsell, MonsterUpsells, UpCart |
| Reduce cart abandonment | Slide Cart TCC, UpCart |
| Apply discount codes in cart | Orichi Upsell & Cross Sell |
| Build customer loyalty | Smile: Loyalty & Rewards |
| GDPR / legal compliance | TnC Checkbox, ROAR |
| COD markets | EasySell |
| Free shipping motivation | Essential Free Shipping Bar |
The best cart modification app depends on your store’s primary bottleneck. Start with one focused tool, measure its impact on conversion rate and AOV, then layer in additional features as needed.
Try more app with orichi: Orichi Shopify Apps for 2026
