Checkout Plus vs Sell Plus Post Purchase 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 Checkout Plus, Oct 13, 2026 for Sell Plus Post Purchase Upsell.
The short answer
- On the Shopify App Store: Checkout Plus 5.0 from 130 reviews and Sell Plus Post Purchase Upsell 5.0 from 1 reviews.
- Only Checkout Plus lists a free plan. Paid plans start at $19/month for Checkout Plus and $9.99/month for Sell Plus Post Purchase Upsell.
- Checkout Plus lists 13 features Sell Plus Post Purchase Upsell’s listing doesn’t mention, including Announcement bar, Custom rules, Free gifts.
Head to head
- United States
- United Kingdom
- Australia
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Staging & Dev
- · Contact us to use
- · For Development and Staging stores
Basic
- · 7-Day Free Trial
- · Auto Add Product or Gift at Cart Page
- · Cart & Checkout Links
- · Order Status Page Customizations
- · Order Validations, Limits & Rules
- · Payment & Shipping Customizations
Plus
- · 7-Day Free Trial
- · Basic Plan Features
- · Cart & Checkout Links
- · Checkout Customizations
- · Limited To Shopify Plus Plans
- · Order Status Page Customizations
Advanced
- · 7-Day Free Trial
- · Auto Add Product or Gift At Checkout
- · Cart & Checkout Links
- · Checkout Branding
- · Checkout Upsells
- · Limited To Shopify Plus Plans
Basic Plan
- · Advanced Analytics
- · One Click Upsell/Downsell
- · Post Purchase
- · Up to 500 orders/month
Pro Plan
- · Advanced Analytics
- · One Click Upsell/Downsell
- · Post Purchase
- · Up to 1000 orders/month
Advanced Plan
- · Advanced Analytics
- · One Click Upsell/Downsell
- · Post Purchase
- · Up to 5000 orders/month
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureUnlock the ability to customize your Checkout, Thank You, and Order Status pages. Communicate vital information to your customers during checkout such as custom messages, and reviews at checkout. Establish trust with your customers by giving them confidence when they checkout it is secure and trustworthy.
Our app seamlessly integrates a custom offer page into your customers' checkout journey, appearing after they've completed their purchase but before reaching the thank you/order confirmation page. Customers can easily accept or reject the offers presented without the need to enter additional information.
- Sell more at checkout increasing average order value (AOV) by offering Upsells
- Establish trust with your customers by showing trust badges and custom messages
- Provide customers the ability to add gift messages & delivery instructions
- Customize your thank you page with social media share and custom messages
- Create post-purchase offers easily with our user-friendly builder.
- Track key metrics with our app's dashboard.
- Activate multiple offers based on criteria with our rule engine.
- Get world-class support from our team whenever you need help.
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 |  Checkout Plus |  Sell Plus Post Purchase Upsell |
|---|---|---|
| Detected stores | 1,117 | Not published |
| Net store change, 28 days | +20 | 0 |
| Stores added, 28 days | 20 | Not enough data |
| Big-brand share | 34% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, United Kingdom, Australia | Not published |
Reviews
| Measure | Checkout Plus | Sell Plus Post Purchase Upsell |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 130(ahead) | 1 |
| New reviews, 28 days | 12(ahead) | 0 |
| Reviewers a year or more in | 13% | Not enough data |
Pricing
| Measure | Checkout Plus | Sell Plus Post Purchase Upsell |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $19/month | $9.99/month(ahead) |
| Longest free trial | 7 days | 30 days |
| Plans listed | 4 | 3 |
Listing
| Measure | Checkout Plus | Sell Plus Post Purchase Upsell |
|---|---|---|
| Shopify category rank | #7 | #760 |
| Shopify App Charts | #2 in Checkout - Other | Not on this week’s charts |
| Built for Shopify | Yes | No |
| Launched | Sep 26, 2022 | Sep 29, 2022 |
| Languages | 1 | 1 |
| Developer | Plus Apps | CartScaler |
FAQ
Checkout Plus and Sell Plus Post Purchase Upsell: common questions
- Is Checkout Plus or Sell Plus Post Purchase Upsell cheaper?
- Only Checkout Plus lists a free plan. Paid plans start at $19/month for Checkout Plus and $9.99/month for Sell Plus Post Purchase Upsell. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, Checkout Plus or Sell Plus Post Purchase Upsell?
- On the Shopify App Store: Checkout Plus 5.0 from 130 reviews and Sell Plus Post Purchase Upsell 5.0 from 1 reviews.
- What features does each app list that the other doesn’t?
- Checkout Plus lists 13 the others don’t mention, such as Announcement bar, Custom rules, Free gifts, Free shipping. Sell Plus Post Purchase Upsell lists 2 the others don’t mention, such as Tiered discounts, Volume discounts. 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 Checkout Plus, Oct 13, 2026 for Sell Plus Post Purchase Upsell; 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 Checkout Plus, Oct 13, 2026 for Sell Plus Post Purchase Upsell. 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.