Post-Purchase Upsells for Shopify

More revenue. No manual setup.

After checkout, customers add your offer to their order in one click, no card re-entry. Kairo's AI builds it all in 3 minutes.

Start Free TrialView Live Demo

  • 26.5%

    avg. upsell CVR

  • 3-minute

    AI setup

  • 14-day

    free trial

Built by the developer of Shrine, a Shopify theme used by 30,000+ stores

AI-Powered Setup

Your Entire Upsell Strategy, Built by AI

What takes 3+ hours to build manually in other apps, Kairo's AI does in 3 minutes.

Reads Your Store

Pulls your products, recent orders, and co-purchase patterns - even knows to exclude gift products

Builds Real Strategy

Cross-sells, Free+Shipping hooks, tiered discounts - with full accept/decline branching at every step

Writes Expert Copy

Every heading, review, button, and decline text - written for your niche, not copy-pasted from a template

One-Click Activation

Review the full strategy, hit activate - your flows go live to customers immediately

See What AI Builds For You

See What the AI Actually Builds

Why this offer: AI detected a low-cost product and turned it into a free offer to get the first yes.

Liam, claim your FREE Salmon Training Treats before your order ships - 4:28
This free gift is only available on this page
Pawfect Bites - Salmon Training Treats (50g)
We're adding Salmon Training Treats to your order for FREE. Your pup deserves a treat for being so good during checkout. Just cover shipping. No catch, no subscription.
2,413+ claimed this week
Pawfect Bites - Salmon Training Treats (50g)
5 stars Rated 4.8 · 2,413+ reviews
$24.95FREEJust Pay Shipping
Product priceFREE
Shipping$6.99
You pay$6.99
Avatar
I almost didn't take the free treats but figured why not. My golden retriever went crazy for these. She sits by the cabinet where I keep them every morning now. Best free thing I've ever claimed online.
Rachel M. 5 stars
Scroll to see more

How Much Are You Leaving on the Table?

Drag the slider. See what you're missing.

$10
$10$75$150$225$300
$0
$0$50K$100K$150K$200K+

Estimated additional revenue

$0

per year

$0/mo

$0/day

0 orders × 22% accept × $3 avg upsell

That's ~$0/day you're not collecting.

Kairo: $8/mo|0x ROI
Start Collecting This Revenue

Estimates based on niche averages for stores with optimized upsell flows.

Built for post-purchase

Everything You Need to Convert More

Build branching flows, design every offer page and test what earns more. Here's how it looks inside Kairo.

Flow Builder

Offers that branch on accept or decline, up to 3 offers deep. Target each flow by order subtotal, products, customer tags and more, and set a priority order - the first matching flow wins.

  • Accepted / Declined paths
  • 9 targeting conditions
  • Priority order
Flows

Drag & Drop Page Builder

Edit every offer page the way you edit a Shopify theme. Drag sections and blocks into place, and the live preview updates as you go.

  • 26 blocks
  • 10 section types
  • 13 templates
Page builder

Conversion Blocks

Countdown timers, reviews, free gifts, quantity breaks and subscription widgets. Add them to any offer page to give shoppers a reason to say yes.

  • Inventory status
  • Before & after results
  • Product upsells
Page builder

A/B Testing

Test entire flows or individual offers. Choose a traffic split from 5% to 95% and compare real revenue, conversion rate and AOV side by side - not vanity metrics.

  • Flow tests
  • Offer tests
  • 5% to 95% split
A/B Testing

Zero add-on fees

4 Extra Features - For Free

Separate apps for these pages would cost you $48.99/mo.
In Kairo, they're included.

CheckoutShopify Plus$19/mo$0

Trust badges and product upsells.

Saved so far$0/mo

Crossed-out prices: what separate single-purpose Shopify apps charge for each feature. The $4.99/mo app covers both the thank you and order status pages.

Switching is easy

Already using another upsell app?

We get it. Your current solution feels clunky, expensive, or just... old. Switching to Kairo is painless.

Keep your current app running

No downtime. Publish Kairo only after you're fully set up.

Clear tutorials and documentation

Step-by-step guides to get you started. No guesswork.

Up to 3 offers per order

Another upsell after a yes, a downsell after a no.

Other apps
Switch to Kairo

Other apps: Billed on total store orders

Kairo: Priced on upsell revenue

Not your store's order count

Other apps: Limited or no A/B testing

Kairo: A/B test flows and offers

Traffic splits from 5% to 95%

Other apps: Surveys need a separate app

Kairo: Surveys built in

With discount-code rewards

AI setup in about 3 minutes3-minute AI setup

14-day free trial
See how Kairo earns more

Frequently Asked Questions

Everything you need to know about Kairo.

No. Post-purchase upsells, thank you page customization, order status customization, flows, A/B testing, surveys, and the visual editor all work on any Shopify plan. Only the checkout page customization feature requires Shopify Plus.

No. Kairo is built on Shopify's own platform, so it runs natively within your store - no external scripts, no slowdowns. Zero impact on page load times.

Yes - 14 days, full access, no credit card required. Development stores get free access permanently. See pricing →

Only the revenue generated from accepted post-purchase offers. Your store's regular orders, thank you page activity, and survey responses don't count toward your usage tier. You only pay based on what Kairo actually earns you.

Yes. Start at 15% recurring commission per referral, scaling up to 30% as you bring in more merchants. Learn more →

Every Order Without Kairo Is Money Left on the Table

Your competitors are already upselling after checkout. The longer you wait, the more revenue walks out the door. Set up in 5 minutes and start earning today.

Start Free TrialView Live Demo

14-day free trial • Cancel anytime