AB Post Purchase Upsell vs CK: Post Purchase Upsell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for AB Post Purchase Upsell, Feb 19, 2026 for CK.
The short answer
- Only AB Post Purchase Upsell lists a free plan.
- CK lists 11 features AB Post Purchase Upsell’s listing doesn’t mention, including Checkout upsell, Conversion rates, Frequently bought together.
Head to head
Development stores
- · All app features included
- · For development and testing
- · Shopify development stores only
AB Upsell
- · A/B testing & upsell revenue analytics
- · All app features included
- · Discounts, targeting & customization
- · No order limits or usage fees
- · One-click post-purchase upsells
- · Product recommendations & cross-sells
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAB Post Purchase Upsell helps you add relevant offers after payment. Create one-click upsells and cross-sells, then build follow-up upsell or downsell paths based on each response. Choose products manually or use automatic recommendations. Customize discounts, content and targeting rules. Compare offer variants with A/B testing and track added revenue and conversions from your dashboard.
After customers complete their initial purchase, present them with tailored product recommendations they can add to their order instantly - no need to re-enter payment details. Easy to set up, customizable offers, and detailed analytics to maximize your conversions. A simple way to add more AOV
- Launch one-click post purchase upsell pages that work after the checkout.
- Display targeted upsell deals based on specific product or collection rules.
- Style every post purchase upsell widget to match your unique store theme.
- A single click post purchase upsell without the need to re-enter payment.
- Personalize upsell with targeting like order value, country, line items etc.
- Completely customizable to your design and with timer for sense of urgency.
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 |  AB Post Purchase Upsell |  CK |
|---|---|---|
| Detected stores | Not published | 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 | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | AB Post Purchase Upsell | CK |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 5 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | AB Post Purchase Upsell | CK |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $14.99/month | No monthly plan listed |
| Longest free trial | 7 days | Not listed |
| Plans listed | 2 | Not published |
Listing
| Measure | AB Post Purchase Upsell | CK |
|---|---|---|
| Shopify category rank | #205(ahead) | #705 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Apr 22, 2026 | Oct 16, 2024 |
| Languages | 1 | 1 |
| Developer | AB Apps | Carthike |
FAQ
AB Post Purchase Upsell and CK: common questions
- Is AB Post Purchase Upsell or CK cheaper?
- Only AB Post Purchase Upsell lists a free plan. 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?
- AB Post Purchase Upsell lists 7 the others don’t mention, such as Additional fees, Announcement bar, Announcements, Buy more, save more. CK lists 11 the others don’t mention, such as Checkout upsell, Conversion rates, Frequently bought together, Funnel performance. 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 Oct 13, 2026 for AB Post Purchase Upsell, Feb 19, 2026 for CK; 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 Oct 13, 2026 for AB Post Purchase Upsell, Feb 19, 2026 for CK. 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.