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Usage & market intelligence

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Shopify rating
5.0 ★
5 reviews
Pricing
Free trial available
Basic Plan
$5/month
14-day free trial · or $50/year and save 17%
  • • Simple cart configuration
  • • Basic customization
  • • Discount codes
  • • Notes
Growth Plan
$29.99/month
14-day free trial · or $299.99/year and save 17%
  • • High converting cart
  • • Customizable design
  • • Countdown and announcements
  • • Motivator bar for free shipping and disc
  • • Upsells and add-ons
What does King Cart & Upsell do?

King Cart is a full-featured slide-out cart builder that lets you set up and customize a seamless, on-brand cart experience in minutes.

  • Add targeted in-cart upsell and cross-sell blocks to boost AOV.
  • Display a free-shipping or discount progress bar that nudges customers to add mo
  • Publish announcements inside the cart to share brand news, promos, or delivery c
  • Offer add-on checkboxes for shipping protection, gift wrap, donation, or any SKU
  • Increase cart visibility with a sticky cart button that follows shoppers across

Features

Cart customizationAnnouncementsCustom stylesCustom rulesCustom HTMLCustom CSSDiscount fieldsPromotionsGift wrapMobile responsiveCart drawerSticky cartTerms checkboxCountdown timersProduct recommendationsFree shippingFrequently bought togetherShipping barRewards redemptionTiered rewardsCustom notesAutomatic discountsOne-click upsellHide express checkout
Review history
Daily review count on the Shopify App Store
5+4 · 30d~0.1/day· Rating steady at 5.0★

Daily tracking from Aug 10, 2026 through today · 30 days observed · sign up free for the full history →

Category rankings
Live organic position on Shopify App Store category pages
  • Cart customization
    #168▼30

Tracked daily · last 13 days · as of 2026-10-01

Catalog position
Within Cart customization on the App Store
Rank by reviews
#146 of 453
Review percentile
68th
Rating percentile
100th
On the App Store
1.3 yrs
Works with
Integrations listed for King Cart & Upsell
Checkout
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Frequently asked questions

King Cart is a full-featured slide-out cart builder that lets you set up and customize a seamless, on-brand cart experience in minutes. It's a cart customization tool for ecommerce stores.