RS: Cart 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 Nov 11, 2026.
The short answer
- AMP Post Purchase Upsell is detected on 5.4× as many Shopify stores as RS: 556 vs 103 as of Nov 11, 2026.
- On the Shopify App Store: RS 5.0 from 7 reviews and AMP Post Purchase Upsell 5.0 from 94 reviews.
- Only AMP Post Purchase Upsell lists a free plan.
- AMP Post Purchase Upsell lists 23 features RS’s listing doesn’t mention, including AI recommendations, Announcement bar, Bundles.
Head to head
- Hungary
- United Kingdom
- United States
- 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 featureRapid Upsell recommends complementary products and related items as one-click cart upsells and cross-sells — in the cart popup, drawer, and cart page. AI picks complementary products that fit each cart, so shoppers add frequently bought together items that raise AOV. Adjust colors, heading, product count, or add custom CSS to match your store.
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.
- One-click cart upsell in cart popup, cart drawer & cart page to improve AOV
- AI cross-sell picks products that match what's already in the cart
- Fully customizable upsell design: colors, heading, product count & custom CSS
- Smart analytics: track revenue by upsell & cross sell location, CTR & conversion
- 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 |  RS | AMP Post Purchase Upsell |
|---|---|---|
| Detected stores | 103 | 556(ahead) |
| Net store change, 28 days | +5 | −8 |
| Stores added, 28 days | 5(ahead) | 3 |
| Big-brand share | Not enough data | 31% |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Apparel & Accessories, Health & Beauty, Home & Garden |
| Top store countries | Hungary, United Kingdom, United States | United States, United Kingdom, Australia |
Reviews
| Measure | RS | AMP Post Purchase Upsell |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 7 | 94(ahead) |
| New reviews, 28 days | Not enough data | 0 |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | RS | 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 | RS | AMP Post Purchase Upsell |
|---|---|---|
| Shopify category rank | #98(ahead) | #187 |
| Shopify App Charts | #7 on Rookies in Upsell and cross-sell | #3 on Big-brand picks in Upsell and cross-sell |
| Built for Shopify | Yes | No |
| Launched | Aug 18, 2026 | Jul 21, 2023 |
| Languages | 1 | 1 |
| Developer | Rapid Search | App HQ Pte. Ltd. |
FAQ
RS and AMP Post Purchase Upsell: common questions
- Which is more popular, RS or AMP Post Purchase Upsell?
- AMP Post Purchase Upsell is detected on 5.4× as many Shopify stores as RS: 556 vs 103 as of Nov 11, 2026.
- Is RS 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.
- Which has better reviews, RS or AMP Post Purchase Upsell?
- On the Shopify App Store: RS 5.0 from 7 reviews and AMP Post Purchase Upsell 5.0 from 94 reviews.
- What features does each app list that the other doesn’t?
- RS lists 6 the others don’t mention, such as Cart drawer, Custom CSS, Frequently bought together, Multi-language. AMP Post Purchase Upsell lists 23 the others don’t mention, such as AI recommendations, Announcement bar, Bundles, Custom HTML. 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 11, 2026; estimated figures are labeled.
Keep comparing
More matchups
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 11, 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.