6 Best Shopify Cart Drawer Upsell Apps (2025)
This is our 2025 edition. For the current rankings, up-to-date pricing and an interactive revenue calculator, see the updated Best In-Cart Upsell Apps for Shopify (2026).
The best Shopify cart drawer upsell apps in our 2025 ranking are UpCart for a full cart-drawer rebuild with in-cart upsells, AOV.ai Cart Drawer for the highest-rated slide cart, Rebuy Smart Cart for AI-personalized cart recommendations, and Monster CartDrawer for gamified rewards and progress bars. We also make Libautech Bundles & Upsell, which adds cart-drawer and popup offers as part of a wider funnel, and we include it honestly below. This is the 2025 edition; for the current list see the 2026 edition.
Key takeaways
- A cart drawer upsell app turns the slide-out cart into a revenue surface: in-cart product offers, a free-shipping progress bar, rewards and one-click adds, all before the shopper reaches checkout.
- UpCart is the category leader for a full cart-drawer rebuild; AOV.ai Cart Drawer is the highest-rated slide cart here; Rebuy adds AI personalization; and Monster leans into gamified rewards.
- We make Libautech Bundles & Upsell and include it at mid-list, not first, because the dedicated cart-drawer builders do more on the drawer itself. Ours fits if you want cart offers as part of a wider funnel. Weigh that we have a commercial interest.
- This is our 2025 edition, kept for reference. The current 2026 ranking has refreshed picks and an interactive calculator.
On this page
What a cart drawer upsell app does
A cart drawer upsell app replaces Shopify's default slide-out cart with a richer one that sells. The core tools: in-cart product recommendations with a one-click add, a free-shipping progress bar that nudges shoppers toward a threshold, rewards and gift unlocks, and sometimes a full cart rebuild with custom design. Because the cart drawer sits on the critical path to checkout, a small lift here compounds across every order.
In 2025 the category split into a few jobs: full cart-drawer builders, AI-personalized carts, gamified reward carts, and cart offers that come bundled into a wider upsell app. The right pick depends on how much of the cart you want to rebuild.
Who needs a cart drawer app
A cart drawer app earns its keep when shoppers reach the cart but do not add more. Match yourself to a row before installing.
| Your store | Best pick | Why |
|---|---|---|
| Want to rebuild the whole cart drawer | A full cart-drawer builder | Custom design, upsells, rewards and progress bars in one drawer. |
| Large catalog, want AI picks | An AI-personalized cart | Learned recommendations beat manual rules at scale. |
| Want gamified rewards | A rewards-focused cart | Progress bars and gift unlocks push shoppers past the threshold. |
| Want cart offers plus a full funnel | An all-in-one upsell app | Cart offers alongside product-page and post-purchase, on one bill. |
How we ranked these, and a word on bias
The disclosure first. We make Libautech Bundles & Upsell, and unlike a topic where we lead, here we rank it mid-list, not first. The dedicated cart-drawer builders do more on the drawer itself, so UpCart leads and the specialists rank above us; ours fits if you want cart-drawer offers as one part of a wider upsell funnel. We include it honestly and say exactly where it fits. We ranked on how much of the cart the app rebuilds, in-cart upsell and rewards depth, rating and review base, and price. Ratings are from the live App Store; this 2025 edition is kept for reference, and the 2026 edition carries the current numbers.
The 6 best cart drawer apps compared (2025)
| App | Rating | Reviews | Price | Best for |
|---|---|---|---|---|
| UpCart | 4.7 | 847 | Free plan, from $29.99/mo | A full cart-drawer rebuild |
| AOV.ai Cart Drawer | 5.0 | 777 | Free plan, paid tiers | The highest-rated slide cart |
| Rebuy Smart Cart | 4.7 | 743 | From $25/mo | AI-personalized cart recommendations |
| Monster CartDrawer + Upsells | 4.7 | 490 | Free plan, paid tiers | Gamified rewards and progress bars |
| Libautech Bundles & Upsell | 4.9 | 35 | From $9.99/mo | Cart offers as part of a full funnel |
| Snap Cart Drawer | 4.9 | 59 | Free plan, paid tiers | A lightweight, newer slide cart |
2025 edition. Ratings shown from the live App Store; see the 2026 edition for the current ranking.
The apps, ranked
1. UpCart
UpCart (4.7 across 847 reviews, Built for Shopify) rebuilds the entire slide-out cart with upsell and cross-sell blocks, a free-shipping progress bar, rewards, add-ons and custom design, all without code.
Strengths: the most complete cart-drawer builder here, turning the cart into a full merchandising surface with a rewards bar and one-click in-cart offers.
Watch-outs: the depth means more to configure, and the paid tier is a step up in price for smaller stores.
Best for: stores that want to rebuild the cart drawer into a real revenue surface. Free plan, then from $29.99/mo.
2. AOV.ai Cart Drawer
AOV.ai Cart Drawer (5.0 across roughly 777 reviews) is a slide-cart builder with in-cart upsells, a free-shipping bar and rewards, carrying the highest rating in this roundup.
Strengths: a near-perfect rating across a solid review base, with the core cart-drawer toolkit and a clean setup experience.
Watch-outs: a smaller ecosystem than UpCart, and some advanced customization sits behind higher tiers.
Best for: stores wanting a highly-rated, well-rounded slide cart. Free plan, then paid tiers.
3. Rebuy Smart Cart
Rebuy Smart Cart (4.7 across 743 reviews) brings Rebuy's AI personalization engine into the cart drawer, ranking in-cart recommendations per shopper across a store's catalog.
Strengths: strong AI personalization at scale, ideal for large catalogs where manual cart rules are impractical, and part of Rebuy's wider merchandising platform.
Watch-outs: it rewards a team member who owns the rules engine, and pricing scales with order volume from $25 a month.
Best for: high-volume stores that want AI-ranked cart recommendations. From $25/mo.
4. Monster CartDrawer + Upsells
Monster CartDrawer + Upsells (4.7 across roughly 490 reviews) focuses on gamified cart mechanics: tiered reward unlocks, gift-with-purchase thresholds and progress bars alongside in-cart upsells.
Strengths: the deepest gamification here, good for stores that motivate bigger carts with rewards and unlock tiers.
Watch-outs: gamification can clutter the cart if overused, and it is less of a full cart rebuild than UpCart.
Best for: stores that drive AOV with reward tiers and progress bars. Free plan, then paid tiers.
5. Libautech Bundles & Upsell
Bundles & Upsell (our app, 4.9 across 35 reviews, Built for Shopify) adds cart-drawer and cart-popup offers alongside frequently bought together, quantity breaks and post-purchase, all from one dashboard with per-offer revenue tracking.
Strengths: cart offers are one part of a complete upsell app, so if you want the drawer offer plus the rest of the funnel on one bill, this consolidates them.
Watch-outs: we will be straight, it is not a full cart-drawer rebuild the way UpCart or AOV.ai are, and it has the smallest review base here at 35 because it is the newest app on this list.
Best for: stores that want cart-drawer offers as part of a wider upsell funnel rather than a dedicated cart rebuild. From $9.99/mo.
6. Snap Cart Drawer
Snap Cart Drawer (4.9 across roughly 59 reviews) is a newer, lightweight slide cart with the core in-cart upsell and free-shipping-bar tools at an accessible entry point.
Strengths: a clean, fast slide cart with a strong early rating, good for stores that want the essentials without a heavy rebuild.
Watch-outs: the smallest review base among the dedicated cart apps here, reflecting how new it is, with a narrower feature set than UpCart.
Best for: stores wanting a simple, well-rated cart drawer to start. Free plan, then paid tiers.
Which cart drawer app to choose
Best full cart-drawer rebuild: UpCart.
Best highest-rated slide cart: AOV.ai Cart Drawer.
Best AI personalization: Rebuy Smart Cart.
Best gamified rewards: Monster CartDrawer.
Best cart offers plus a full funnel: Libautech Bundles & Upsell, our app.
Which in-cart upsell app is right for you?
Pick what matters most and we will point you to the best fit. Often it is not ours, and we say so.
What a cart upsell is worth
Put in your monthly orders, the share of shoppers who accept an in-cart offer, and what the added item costs, to size the extra revenue a cart-drawer program adds.
Extra revenue a month
$720
Extra revenue a year
$8,640
That is about 40 accepted cart offers a month at $18 each, caught between add to cart and checkout. It is gross added revenue before any offer discount, and it only holds if the cart offer created the bigger order rather than discounting one that would have happened anyway. You can run cart-drawer upsells in Bundles & Upsell.
Common cart drawer mistakes
Cluttering the drawer. A cart stuffed with offers, timers and rewards overwhelms the shopper. Keep it to one clear in-cart offer plus a progress bar.
Recommending irrelevant items. An in-cart upsell that ignores what is in the cart reads as noise. Recommend genuine companions to what the shopper already chose.
Slowing the path to checkout. The cart is on the critical path, so a heavy or slow drawer costs conversions. Prefer apps that load as theme app blocks and meet performance standards.
Setting the free-shipping threshold wrong. A threshold far above the average order adds friction; set it just above current AOV so most shoppers can reach it with one addition.
See the current 2026 edition
This is our 2025 ranking, kept for reference. Apps change fast: ratings shift, listings rebrand or get delisted, and new tools launch. For the current picks, up-to-date pricing and an interactive calculator, read our Best In-Cart Upsell Apps for Shopify (2026).
Think your app belongs on this list?
We review submissions against the same criteria we rank on and add the ones that qualify. If you build a Shopify app in this category, send it in.