Boost: Cart, Bundles & Upsells

Bigger carts in minutes—easy install, no code.

by BOOST · Launched: May 2023

5.0 (12) on Shopify Used by 114 Shopify stores Built for Shopify

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About Boost: Cart, Bundles & Upsells

Boost raises your average order value by letting shoppers see how close they are to free shipping, free gifts, or special discounts—no coding required. It also includes cart upsells, bundle builders, collections, post-purchase offers, and more for even bigger checkouts. Set it up in minutes and track ROI in real time. Join Shopify stores already maximizing revenue with Boost. Customizable reward tiers mix discounts, free shipping, and gifts. Discounts automatically apply. No promo code required. eg. Free Shipping at $75, 15% off at $100, 25% off at $200, Free Gift at $250 Raise AOV fast: cart, upsells, progress bars, & bundles. 5-minute setup—no dev needed. Show more Show less

Last verified: July 15, 2026 · Fresh

App details

Developer: BOOST
Category: Marketing & conversion
Pricing: Paid
Launched: May 2023
Rating: 5.0 (12) on Shopify

Key features

ROI Tracker
3 Cart Styles
Cart Upsells
3 Bundle Builders
Collections Optimizer

Integrations with:

Checkout, Recharge, Yotpo, bold v2, skio, stamped.io, stayai

1 plan · 7-day free trial

Growth Suite

$98/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 15 Shopify App Store reviews

Use the arrows to read individual reviews

Two months in and loving the app. Easy install and design customizations, looks and feels incredible, and customer support has been super helpful when anything comes up. We took a long time to settle on Boost after looking at other options and are very glad that we did. We broke even on the cost quickly, and we are not a high-volume store. Highly recommend.

— Lucidum Medicinals

Great experience, have been live for a couple weeks. Successfully pushed AOV higher by double digit % points. Great intuitive mobile first UI for the bundle builder, smart cart, and collection page which is better then potentially any other alternative.

— LonoLife

Works out of the box. Is optimized for conversions. Easy to customize. They have some barriers they don't let you customize but is to optimize conversions. It's a great app. Professional. UI/UX optimized. The Boost Team customer service has been prompt and delightful to work with as well when needed. Their reps are knowledgable and don't read from scripts. They genuinely help you and are well in...

— Pet Parents® | Pet Parenting, Better.™

Boost has dramatically increased our AOV and overall revenue. Absolutely love it!

— MK Supplements

The Boost team fixed a problem on our site fast and kept us updated. Great service—thank you!

— Kiokii and...

Full service app that I personally think its the best in the game. Fast support as well :)

— Earth's Secret

Boost is an outstanding app that provides features every Shopify store should have natively. The cart functionality is exceptional—arguably the best cart app on Shopify. Since implementing it, our add-to-cart conversions have skyrocketed by 300%. With Boost, the possibilities are endless. The support team helped us setup localization and optimize for more subscription opt-ins . The high level supp...

— GoDoggy

Brilliant app. Helps upsells + lovely collection page well optimized for conversions. Very helpful and quick support.

— Heylo

Boost Your Store offers a variety of tools to encourage upselling and cross-selling, such as one-click upsells, product bundles, and post-purchase recommendations.

— WildernessSupply

Love this app! We had looked at many other cart apps and this one is the best. Works well. Love the options. Increases our AOV! Best of all, they offer great, responsive customer support. Highly recommend it for a sleek, professional-looking cart app that encourages more sales.

— ThumbPRO

Boost has been a game changer for our cart. We've used many cart apps in the past, but none have the customizability or performance compared to Boost. It's super easy to set up and the team has even implemented some custom features for our store to make it compatible with our other apps. Highly recommend!

— Feel Goods

I've used so many upsell and cross sell apps over the years of running my brands (many of the popular ones). The issue with them is the UI/UX is terrible, the customization is limited, and the biggest thing is they either don't have carts or if they do, they're clunky. So sure AOV goes up but your CR likely goes down. That's why when I found Boost, I bugged the founder to let me use it as soon as...

— douxds

Worst customer support! We really wanted to work with them on the custom features they already support on other stores, but they didn't want to have any call saying they work better async and takes days for them to respond on any query. Lost out on a customer who was really interested in having this app integrated, maybe they have clients more than they can handle. Glad we experienced this before...

— Zabiha Bazaar

The Boost cart was incredibly easy to set up and we saw a very fast performance improvement!!! Great app. Excellent customer support! Highly recommend!

— Happy Wolf

The Equip team loves Boost. We've tried two other (extremely popular) cart apps and Boost has outperformed all of them (both AOV & conversion). The app is really easy to use on the backend + great UX for customers.

— Equip

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