Attach: Upsell & Cross‑Sell vs AMP Post Purchase Upsell
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 AMP Post Purchase Upsell.
The short answer
- Only AMP Post Purchase Upsell lists a free plan.
- AMP Post Purchase Upsell lists 30 features Attach’s listing doesn’t mention, including A/B testing, AI recommendations, Announcement bar.
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.
FREE FOREVER
- · A/B Testing to pick best offer
- · Advanced targeting: UTM, repeat visitor
- · Design & branding support
- · SKU & campaign level analytics
- · Smart AI recommendations
- · Unlimited Post Purchase Upsells
PRO
- · All features in FREE plan
- · Checkout page upsells for Shopify Plus
- · Pop-ups on ATC or Checkout button clicks
- · Post purchase surveys and analytics
- · Product Page Upsells
- · Slide cart drawer with upsells
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.
AMP Post Purchase Upsell turns every order into a bigger order. Show a one-click post purchase upsell where buying intent is highest. Add product page upsells and pop-ups, and on Shopify Plus, add checkout upsells with a free-shipping progress bar. Use one-click add-ons, frequently bought together recommendations & cross-sell offers across the journey.
- 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
- Create Post Purchase One-Click Upsells (single & multi-product)
- Upsell everywhere: Product page, Cart, Thank You page
- Supercharge Checkout page with upsells and social proof (Shopify Plus Exclusive)
- Customize Thank You & Order Status page: Upsells, Surveys & more
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 | AMP Post Purchase Upsell |
|---|---|---|
| Detected stores | Not published | 537 |
| Net store change, 28 days | 0 | −12 |
| Stores added, 28 days | Not enough data | 2 |
| Big-brand share | Not enough data | 32% |
| Top store categories | Not published | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | Not published | United States, United Kingdom, Australia |
Reviews
| Measure | Attach | AMP Post Purchase Upsell |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 94 |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Attach | AMP Post Purchase Upsell |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $99/month |
| Longest free trial | Not listed | 14 days |
| Plans listed | Not published | 2 |
Listing
| Measure | Attach | AMP Post Purchase Upsell |
|---|---|---|
| Shopify category rank | Not enough data | #186 |
| Shopify App Charts | Not on this week’s charts | #3 on Big-brand picks in Upsell and cross-sell |
| Built for Shopify | No | No |
| Launched | Jul 3, 2026 | Jul 21, 2023 |
| Languages | 1 | 1 |
| Developer | ArtemisSoft | App HQ Pte. Ltd. |
FAQ
Attach and AMP Post Purchase Upsell: common questions
- Is Attach or AMP Post Purchase Upsell cheaper?
- Only AMP 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?
- AMP Post Purchase Upsell lists 30 the others don’t mention, such as A/B testing, AI recommendations, Announcement bar, Bundles. 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 AMP 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 Jul 3, 2026 for Attach, Nov 9, 2026 for AMP 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.