Attach: Upsell & Cross‑Sell 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 Jul 3, 2026 for Attach, Nov 9, 2026 for Post Purchase Upsell—ReSell.
The short answer
- Post Purchase Upsell—ReSell lists 9 features Attach’s listing doesn’t mention, including A/B testing, AI recommendations, Checkout upsell.
Head to head
- United States
- United Kingdom
- Germany
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
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 featureAttach shows merchant-selected upsell and cross-sell products across the buying journey — on product pages, in the cart, and after checkout at post-purchase. You choose exactly which products each one shows, with a variant selector and compare-at pricing, so shoppers see relevant, complementary items rather than generic suggestions.
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.
- Upsells and cross-sells on product pages, cart, and post-purchase
- One-click post-purchase add to the existing order, with no re-payment
- Pick the exact products shown in each upsell, with a variant selector
- Analytics per surface and per upsell: impressions, accepts, revenue
- 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 |  Attach |  Post Purchase Upsell—ReSell |
|---|---|---|
| Detected stores | Not published | 53 |
| 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 | Apparel & Accessories, Home & Garden, Health & Beauty |
| Top store countries | Not published | United States, United Kingdom, Germany |
Reviews
| Measure | Attach | Post Purchase Upsell—ReSell |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 72 |
| New reviews, 28 days | Not enough data | 2 |
| Reviewers a year or more in | Not enough data | 31% |
Pricing
| Measure | Attach | Post Purchase Upsell—ReSell |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | No monthly plan listed | $0.99/month |
| Longest free trial | Not listed | 30 days |
| Plans listed | Not published | 4 |
Listing
| Measure | Attach | Post Purchase Upsell—ReSell |
|---|---|---|
| Shopify category rank | Not enough data | #90 |
| Shopify App Charts | Not on this week’s charts | #20 on Featured by Shopify in Upsell and cross-sell |
| Built for Shopify | No | Yes |
| Launched | Jul 3, 2026 | Jun 28, 2022 |
| Languages | 1 | 4 |
| Developer | ArtemisSoft | DevIT |
FAQ
Attach and Post Purchase Upsell—ReSell: common questions
- What features does each app list that the other doesn’t?
- Attach lists 3 the others don’t mention, such as Cart upsell, Conversion rates, Recommendation performance. Post Purchase Upsell—ReSell lists 9 the others don’t mention, such as A/B testing, AI recommendations, Checkout upsell, Drag-and-drop editor. 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 Jul 3, 2026 for Attach, Nov 9, 2026 for Post Purchase Upsell—ReSell; 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 Jul 3, 2026 for Attach, Nov 9, 2026 for Post Purchase Upsell—ReSell. 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.