Mason: AI Smart Cart & Upsells vs Flash: Cart Drawer & Upsell
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Mason, Nov 6, 2026 for Flash.
The short answer
- Mason lists 34 features Flash’s listing doesn’t mention, including Animations, Announcement bar, Announcements.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Growth Plan
- · - Integrated attribution tags
- · - Integrated insights
- · - Upsell, cross sell, freebies, offers, coupons, behavioral discounts, tiered discounts
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureAI Smart Cart enables merchants to optimise cart completion rates and improve AOV with personalized upsells, offers & discounts. Tailored for Plus merchants looking for advanced cart customisation, and ability to run freebies, tiered promotions, timed discounts, behavioral offers, custom rewards & incentives for improving sales and basket size.
Customize your cart drawer to boost Average Order Value (AOV) with AI-powered upsells and a rewards progress bar that motivates customers to unlock free shipping and free gifts. Add countdown timers to drive urgency, a discount code box and cart notes for a smoother checkout, and trust badges to build confidence. A sticky add-to-cart button keeps checkout just one tap away.
- Upsell & Cross Sell : Personalized Offers, Discounts, Upsells & Cross Sells
- Tiered Offers, Freebies, Coupons, Gifts & Customizable Discounts
- Realtime analytics, Integrations with Klaviyo and Other Email / SMS tools
- Customizable slide-out cart drawer
- Tiered rewards and shipping progress indicators
- In-cart announcement bar with countdown timers
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 |  Mason |  Flash |
|---|---|---|
| Detected stores | Not published | Not published |
| 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 | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Mason | Flash |
|---|---|---|
| App Store rating | Not published | 5.0 ★ |
| App Store reviews | Not published | 34 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | 0% |
FAQ
Mason and Flash: common questions
- What features does each app list that the other doesn’t?
- Mason lists 34 the others don’t mention, such as Animations, Announcement bar, Announcements, Automatic discounts. 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 Oct 13, 2026 for Mason, Nov 6, 2026 for Flash; 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 Oct 13, 2026 for Mason, Nov 6, 2026 for Flash. 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.