Flash Post Purchase Upsell 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 Jun 17, 2026 for Flash Post Purchase Upsell, 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 29 features Flash Post Purchase Upsell’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 featureFlash Upsell adds high-converting post-purchase upsell and downsell offers in minutes. no coding. The moment payment clears, a one-click offer appears on the post-purchase page and adds to the order instantly. Decline it? A follow-up on the thank-you page recovers the sale. A/B test two variants with live analytics to see what converts, and customize every offer to match your store's branding.
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-tap upsells in the post-purchase page right after payment — no redirects, no
- A second offer on the thank-you page recovers customers who declined the first.
- AI auto-translates every offer into the customer's language across 10 locales.
- 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 |  Flash Post Purchase Upsell | 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 | Flash Post Purchase Upsell | 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 | Flash Post Purchase Upsell | 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 | Flash Post Purchase Upsell | AMP Post Purchase Upsell |
|---|---|---|
| Shopify category rank | #770 | #186(ahead) |
| 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 | May 12, 2026 | Jul 21, 2023 |
| Languages | 1 | 1 |
| Developer | Smart Upsell | App HQ Pte. Ltd. |
FAQ
Flash Post Purchase Upsell and AMP Post Purchase Upsell: common questions
- Is Flash Post Purchase Upsell 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 29 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 Jun 17, 2026 for Flash Post Purchase Upsell, 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 Jun 17, 2026 for Flash Post Purchase Upsell, 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.