Install Free
Post-Purchase AI Upsell

Turn every order into
a second sale

After checkout, CartAI writes a personal email suggesting a complementary accessory from your catalog — with a one-click draft order link to combine shipping. No templates. No manual follow-up.

mail 2 free upsell emails
psychology AI picks accessories
local_shipping Combined shipping links
Upsell Email Preview
S

Sam · Your Store

To: [email protected]

Perfect add-on for your Ceramic Mug order

Hi Alex — thanks for your order! Since you're getting the Ceramic Mug, our Silicone Travel Lid pairs really well and we can ship it in the same box. Tap below to add it before we pack.

Add to my shipment →
check_circle AI-generated · Draft order link
Product demo

See CartAI Upsell from order to AI email in action

Watch how a paid order triggers accessory matching, AI copy, and a combined-shipping draft order link.

CartAI Upsell walkthrough

Open on YouTube

Features

Post-purchase revenue, on autopilot

AI copy, smart accessory matching, and combined-shipping checkout — with full audit logs for every send.

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AI Upsell Copy

Every email is written fresh from the actual order line items, buyer name, and your assistant persona — friendly, humorous, or urgent.

inventory_2

Accessory Catalog

Point AI at a Shopify collection or hand-picked product list. It selects the most relevant add-on for each order context.

link

Draft Order Links

Buyers get a one-click link to add the accessory and check out — framed as combining into one shipment, not a hard sell.

monitoring

Revenue Dashboard

30-day trends for emails sent, upsell orders, and attributed revenue — plus logs with subject, body, and the AI prompt used.

How it works

From order to upsell in four steps

Step 1

Customer checks out

A paid order triggers the upsell pipeline via Shopify orders/create.

Step 2

AI picks an accessory

The assistant reads purchased products and selects a match from your accessory catalog.

Step 3

Email goes out

Personalized subject and body with a combined-shipping draft order link, sent after your configured delay.

Step 4

Revenue tracked

When the buyer converts, the dashboard attributes upsell revenue and logs the full email audit trail.

Who it's for

Stores with natural add-on opportunities

coffee

DTC & lifestyle brands

Mugs and lids, bags and straps, devices and cases — AI finds the obvious pairing buyers would add if you asked.

build

Parts & accessories shops

Suggest consumables, spare parts, or compatible accessories right after the main purchase ships.

store

Growing Shopify merchants

Start free with 2 lifetime sends, prove ROI on the dashboard, then scale with Pro or Business daily limits.

Pricing

Start free. Scale when it pays for itself.

Free

$0
  • check_circle2 AI upsell emails (lifetime)
  • check_circleSystem sender for trial sends
  • check_circle30-day dashboard & email logs
Install Free
Popular

Pro

$29 / month
  • check_circleUp to 100 upsell emails / day
  • check_circleCustom verified sender domain
  • check_circleAccessory catalog configuration
Get Pro

Business

$89 / month
  • check_circleUp to 500 upsell emails / day
  • check_circleCustom verified sender domain
  • check_circleEverything in Pro
Get Business
FAQ

Frequently asked questions

What is CartAI Upsell?
A Shopify app that sends AI-written post-purchase emails suggesting complementary accessories, with a draft order link so buyers can add items and combine shipping.
When are emails sent?
After a paid order is created, the app schedules a delayed upsell email. You configure delay, persona, tone, and accessory catalog before activating.
Can I use my own sender domain?
Yes on Pro and Business. Verify your domain through the in-app Resend integration. Free plan sends use the platform system sender for trial emails.
Is every email logged?
Yes. The Logs page shows status, subject, body, and the AI prompt used — so you can audit what customers received.

Your customers just bought.
Offer the perfect add-on.

2 free upsell emails to prove it works. No credit card required on Free.

Install Free on Shopify arrow_forward