AOV.ai Post Purchase Upsell vs CartBoost: Checkout Upsell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 5, 2026 for AOV.ai Post Purchase Upsell, Nov 4, 2026 for CartBoost.
The short answer
- Both list a free plan. Paid plans start at $19/month for AOV.ai Post Purchase Upsell and $9.99/month for CartBoost.
- CartBoost lists 7 features AOV.ai Post Purchase Upsell’s listing doesn’t mention, including Checkout upsell, Click-through rates, Conversion rates.
Head to head
- United States
- Australia
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Forever free
- · $200 upsell revenue per 30 days
- · Cap resets every 30 days
- · Detailed analytics
- · Full analytics and order tracking
- · Post purchase upsell & downsell
- · Ready to use templates
Basic
- · A/B test your offers
- · AI auto-translate offers
- · AI product recommendation
- · Everything in Free
- · For stores on Shopify Basic
- · Offer AI finds your best upsells
Grow
- · A/B test your offers
- · AI auto-translate offers
- · Advanced plan: $39/month or $390/year
- · Everything in Free
- · For Shopify Grow plan
- · Offer AI finds your best upsells
Plus
- · A/B test your offers
- · AI auto-translate offers
- · AI product recommendation
- · Applied for Plus Shopify plan
- · Everything in Free
- · Offer AI finds your best upsells
Free
- · 1-Click checkout order bump
- · Checkout milestone progress bar
- · Native Checkout Extensibility
- · Standard email support
Pro
- · 1-Click post-purchase upsells
- · Multi-tier milestone rewards
- · Priority developer support
- · Unlimited checkout orders
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureBoost AOV with seamless post-purchase, thank you page, and order status upsells. Easy setup with no coding required. Offer one-click gifts, discounts, or coupons without re-entering payment details. Target offers by customer segments and order value, and build high-converting upsell–downsell flows. Easily test aftersell offers, track performance and launch faster with AI-powered templates.
CartBoost helps merchants increase Average Order Value directly within Shopify checkout. Set dynamic milestone reward progress bars for free shipping and gift tiers that update live with cart totals. Offer high-converting 1-click checkout order bumps and post-purchase upsells with zero checkout friction. Built 100% natively on Checkout Extensibility with no theme code injection or slow scripts.
- Boost AOV through Post-purchase offers for specific products
- Ultilize Thank you page by offering coupon or discounted products
- Easily personalize checkout offers with smart AI-based recommendations
- Automatically track and manage upsell performance in one place
- Checkout progress bar with tiered milestone rewards
- One-click order bumps placed directly inside native checkout
- Post-purchase 1-click upsells displayed right after payment
- Visual checkout customizer block with live admin simulator
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  AOV.ai Post Purchase Upsell | |
|---|---|---|
| Detected stores | 94 | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, Australia, United Kingdom | Not published |
Reviews
| Measure | AOV.ai Post Purchase Upsell | |
|---|---|---|
| App Store rating | 4.9 ★ | Not published |
| App Store reviews | 170 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | 1% | Not enough data |
Pricing
| Measure | AOV.ai Post Purchase Upsell | |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $19/month | $9.99/month(ahead) |
| Longest free trial | 7 days | 14 days |
| Plans listed | 4 | 2 |
Listing
| Measure | AOV.ai Post Purchase Upsell | |
|---|---|---|
| Shopify category rank | #27 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Jan 2, 2025 | Nov 4, 2026 |
| Languages | 1 | 1 |
| Developer | AOV.ai | ModApps |
FAQ
AOV.ai Post Purchase Upsell and CartBoost: common questions
- Is AOV.ai Post Purchase Upsell or CartBoost cheaper?
- Both list a free plan. Paid plans start at $19/month for AOV.ai Post Purchase Upsell and $9.99/month for CartBoost. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- AOV.ai Post Purchase Upsell lists 1 the others don’t mention, such as Cart upsell. CartBoost lists 7 the others don’t mention, such as Checkout upsell, Click-through rates, Conversion rates, Free gifts. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 5, 2026 for AOV.ai Post Purchase Upsell, Nov 4, 2026 for CartBoost; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 5, 2026 for AOV.ai Post Purchase Upsell, Nov 4, 2026 for CartBoost. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.