WooCommerce · Upsell & cart

Best WooCommerce upsell & cart drawer plugins

Upsell tooling is where merchants see the clearest revenue attribution of any widget category, because the offer, the accept and the order value are all measurable in one session. The category has three distinct surfaces and they are not interchangeable: the product page (frequently bought together), the cart drawer (add-ons and shipping thresholds), and post-purchase (a one-click offer on the thank-you page that cannot lose you the original order). The strongest stacks cover at least two of the three.

4 plugins compared · checked 23 August 2026

Same category on Shopify

Same category on BigCommerce

At a glance

PluginRating Active installsPricingBest for
Cart Abandonment Recovery for WooCommerce 4.8 300,000+ Free plan available Recovering carts, which is where the money in this category actually is
CartFlows 4.8 200,000+ Free plan available Building real checkout funnels with order bumps and one-click upsells
Side Cart Woocommerce | Woocommerce Cart 4.9 80,000+ Free plan available A slide-out cart, the single highest-impact free change to a Woo store
FunnelKit 5.0 30,000+ Free plan available FunnelKit users wanting checkout and upsell under one vendor
How to choose

What actually separates these apps

Feature lists all look the same. These are the five things that change the outcome once the app is installed.

01 Which surfaces are covered

Product page, in-cart, checkout (Plus only for some rules), and post-purchase. Post-purchase is the highest-margin surface because acceptance never risks the initial conversion.

02 Recommendation logic

Manual pairing, tag-based rules, or automatic based on order history. Manual is fine for a 30-SKU store and unmanageable for 3,000.

03 Cart drawer replacement

Several apps here replace your theme's cart drawer entirely. That is powerful and invasive — check it inherits your fonts and colours, and test on your actual theme before launch.

04 Revenue-share vs flat pricing

'Free to install' usually means a percentage of upsell revenue or a tiered order cap. Model both against a flat monthly fee at your order volume; the crossover point arrives faster than merchants expect.

05 Discount stacking

Test how offers interact with automatic discounts and discount codes. Conflicts here produce support tickets and, occasionally, orders sold below cost.

The ranking

Upsell & cart for WooCommerce, ranked

Ordered by our picks first, then by active installs. Short on time: Cart Abandonment Recovery for WooCommerce is the safest default.

1

Cart Abandonment Recovery for WooCommerce

by Brainstorm Force
Top pick

Recover Lost Sales with Automated Emails

4.8 (612) 300k+ installsFree plan availableWooCommerce
Best for: Recovering carts, which is where the money in this category actually is.
What it does well
  • 612 ratings at 4.8 on 300,000 installs
  • Recovery emails included free, which is unusual
Trade-offs
  • Not an upsell widget — it works after the visit, not during it
  • Overlaps with any email platform you already run
Full review WooCommerce listing
2

CartFlows

by Brainstorm Force
Best at scale

Funnel Builder & Checkout Plugin for WooCommerce

4.8 (504) 200k+ installsFree plan availableWooCommerce
Best for: Building real checkout funnels with order bumps and one-click upsells.
What it does well
  • 200,000 installs at 4.8
  • Order bumps and post-purchase upsells, the two highest-return surfaces
Trade-offs
  • A funnel builder, not a widget — it replaces your checkout flow
  • The valuable parts are in the paid tier
Full review WooCommerce listing
3

Side Cart Woocommerce | Woocommerce Cart

by xootix
Best value

Side Cart Woocommerce | Woocommerce Cart

4.9 (452) 80k+ installsFree plan availableWooCommerce
Best for: A slide-out cart, the single highest-impact free change to a Woo store.
What it does well
  • 452 ratings at 4.9
  • Replaces the cart page round-trip with a drawer
Trade-offs
  • Cart drawer replacement is theme-coupled — test on a staging copy
  • Last updated June 2026
Full review WooCommerce listing
4

FunnelKit

by FunnelKit

Funnel Builder for WooCommerce Checkout

5.0 (1k) 30k+ installsFree plan availableWooCommerce
Best for: FunnelKit users wanting checkout and upsell under one vendor.
What it does well
  • 1,014 ratings at a 5.0 average
  • Actively developed
Trade-offs
  • 30,000 installs
  • Same funnel-not-widget caveat as CartFlows
Full review WooCommerce listing
Before you install

Read these first

The context an app listing will never give you — what these widgets cost in page weight, and where the free tiers stop.

Performance

How many Shopify apps is too many?

The honest answer is not a number. It is a budget — measured in kilobytes and main-thread milliseconds — and here is how to work out yours.

8 min read
FAQ

Upsell & cart on WooCommerce: common questions

How much can upsell apps realistically add to AOV?
A well-configured stack lifts average order value in the 5–15% range. Vendor case studies quoting 30%+ are usually measuring accepted-offer sessions rather than blended AOV across all orders.
Post-purchase or in-cart upsells — which first?
Post-purchase, because the risk profile is asymmetric: the original order is already captured, so a declined offer costs nothing. In-cart upsells add friction at the moment of highest intent and need more careful testing.
Do cart drawer apps break themes?
They can. Any app that replaces the cart drawer touches the most theme-coupled component on the store. Install on a duplicated theme, test add-to-cart from every surface including quick-add on collection pages, then publish.
Is 'free to install' actually free?
Rarely. It generally means usage-based billing — a share of attributed upsell revenue, or charges above an order threshold. Read the pricing tab, not the badge, and project your bill at 12 months of growth.

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