Checkout Boost: Rules & Upsell vs Post Purchase Upsell—ReSell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026.
The short answer
- Post Purchase Upsell—ReSell and Checkout Boost run on almost as many Shopify stores as each other: 51 vs 49 as of Nov 8, 2026.
- On the Shopify App Store: Checkout Boost 5.0 from 10 reviews and Post Purchase Upsell—ReSell 5.0 from 71 reviews.
- Only Checkout Boost lists a free plan. Paid plans start at $49/month for Checkout Boost and $0.99/month for Post Purchase Upsell—ReSell.
- Checkout Boost lists 4 features Post Purchase Upsell—ReSell’s listing doesn’t mention, including Bundles, Custom rules, Free gifts.
Head to head
- United States
- Australia
- United Kingdom
- 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.
Starter
- · All checkout pages
- · Compatible with Shopify Plus stores only
- · Delivery option: Hide, Rename, Reorder
- · Dev store access free
- · Payment method: Hide, Rename, Reorder
- · Unlimited static content blocks
Plus
- · All Starter features
- · BXGY & free gift automation
- · Checkout validation
- · Conditional content blocks
- · Post purchase & checkout upsell
- · Rule based discount codes
Flex
- · 100 store orders free/mo
- · 24/7 chat, email, phone & video calls
- · 5% on upsell revenue
- · Free cart upsell add-on
Standard
- · 24/7 chat, email, phone & video calls
- · 250 store orders included/mo
- · Commission-free upsells
- · Free cart upsell add-on
- · Then $0.20 per order
Professional
- · 1,000 store orders included/mo
- · 24/7 chat, email, phone & video calls
- · Commission-free upsells
- · Free cart upsell add-on
- · Then $0.20 per order
Unlimited
- · 24/7 chat, email, phone & video calls
- · Commission-free upsells
- · Free cart upsell add-on
- · Lifetime price lock
- · No usage charges ever
- · Unlimited store orders
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCheckoutBoost is the ultimate checkout customization app for upsells, post-purchase one-click offers, cross-sells & checkout blocks. Build checkout UI extensions with a no-code drag-and-drop editor powered by checkout extensibility. Apply 60+ smart conditions based on cart value, product tags, collections, customer segments & geography. Automate discounts code, BXGY deals & free gift rules.
Get an ultimate sales boost by reconverting buyers after payment: a post purchase offer before the thank you page, upsell bundles on the checkout page, upsell & cross sell with related products and recommended products. A post checkout upsell and order status page upsell keep selling, and a multi-product downsell follows a declined offer.
- No-Code simple drag-and-drop checkout editor
- Global conditions engine for cart value, tags, customer attributes & more
- Build your own content checkout extension with text, banner, button and more
- Customizable upsell, form, content, and promotional checkout blocks
- Checkout and post-purchase one click upsell and automatic cross-sell offers
- Offer customers to make a new purchase with Thank you page upsell promotions
- Upselling and cross-selling widgets to improve your checkout and Thank you page
- Personalized recommendations or products that are frequently bought together
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 Boost |  Post Purchase Upsell—ReSell |
|---|---|---|
| Detected stores | 49 | 51(ahead) |
| 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, Food, Beverages & Tobacco, Sporting Goods | Apparel & Accessories, Home & Garden, Health & Beauty |
| Top store countries | United States, Australia, United Kingdom | United States, United Kingdom, Australia |
Reviews
| Measure | Checkout Boost | Post Purchase Upsell—ReSell |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 10 | 71(ahead) |
| New reviews, 28 days | Not enough data | 1 |
| Reviewers a year or more in | Not enough data | 32% |
Pricing
| Measure | Checkout Boost | Post Purchase Upsell—ReSell |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $49/month | $0.99/month(ahead) |
| Longest free trial | 30 days | 30 days |
| Plans listed | 2 | 4 |
Listing
| Measure | Checkout Boost | Post Purchase Upsell—ReSell |
|---|---|---|
| Shopify category rank | #101 | #90 |
| Shopify App Charts | #12 in Checkout - Other | #20 on Featured by Shopify in Upsell and cross-sell |
| Built for Shopify | Yes | Yes |
| Launched | Apr 19, 2024 | Jun 28, 2022 |
| Languages | 1 | 4 |
| Developer | Checkout Boost | DevIT |
FAQ
Checkout Boost and Post Purchase Upsell—ReSell: common questions
- Which is more popular, Checkout Boost or Post Purchase Upsell—ReSell?
- Post Purchase Upsell—ReSell and Checkout Boost run on almost as many Shopify stores as each other: 51 vs 49 as of Nov 8, 2026.
- Is Checkout Boost or Post Purchase Upsell—ReSell cheaper?
- Only Checkout Boost lists a free plan. Paid plans start at $49/month for Checkout Boost and $0.99/month for Post Purchase Upsell—ReSell. 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 Boost or Post Purchase Upsell—ReSell?
- On the Shopify App Store: Checkout Boost 5.0 from 10 reviews and Post Purchase Upsell—ReSell 5.0 from 71 reviews.
- What features does each app list that the other doesn’t?
- Checkout Boost lists 4 the others don’t mention, such as Bundles, Custom rules, Free gifts, Progress bar. Post Purchase Upsell—ReSell lists 2 the others don’t mention, such as A/B testing, 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 Nov 8, 2026; 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 8, 2026. 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.