Flat Upsell vs Story Theme Apps
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 Flat Upsell, Nov 14, 2026 for Story Theme Apps.
The short answer
- Story Theme Apps lists 7 features Flat Upsell’s listing doesn’t mention, including Bundles, Drag-and-drop editor, Free shipping.
Head to head
Unlimited
- · A/B testing
- · Full dashboard
- · Pre-purchase and post-purchase
- · Unlimited offer rules
- · Unlimited orders, no revenue share
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureFlatUpsell adds one-click upsells at two moments: on the cart page before checkout, and just after payment, before the thank-you page, with no card details to re-enter. Set simple rules ("if the cart has X, suggest Y at a discount") by product or collection, no code. A/B test several products after checkout to see which one converts more.
Story Theme Apps réunit trois outils de conversion dans une appli gratuite. Importez et modérez vos avis, avec photos et achat vérifié. Testez deux versions d'une page sur de vrais visiteurs et appliquez la gagnante. Proposez des offres par quantité, un produit offert, la livraison offerte ou un cadeau dès un montant, appliqués sans code et cumulables avec les codes promo de vos clients.
- Post-purchase one-click upsell — no re-entering payment details
- Cart-page upsell when customers click checkout, styled to match your theme
- Simple trigger rules by product or collection — no code required
- Dashboard: views, conversion rate, extra revenue, by placement
- Import d'avis par CSV (Judge.me, Loox, Yotpo), photos clients, achat vérifié
- Étoiles dans les métachamps standard, lues par votre thème et par Google
- Tests A/B entre deux modèles de page, gagnante appliquée en un clic
- Offres par paliers 1, 2, 3 pièces : remise, prix du lot ou produit offert
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 |  Flat Upsell | |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | Not enough data |
| 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 | Flat Upsell | |
|---|---|---|
| App Store rating | Not published | Not published |
| App Store reviews | Not published | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Flat Upsell | |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $14.99/month | No monthly plan listed |
| Longest free trial | 14 days | Not listed |
| Plans listed | 1 | Not published |
Listing
| Measure | Flat Upsell | |
|---|---|---|
| Shopify category rank | #1108 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Oct 8, 2026 | Nov 6, 2026 |
| Languages | 4 | 1 |
| Developer | Acorp | NS Group |
FAQ
Flat Upsell and Story Theme Apps: common questions
- What features does each app list that the other doesn’t?
- Flat Upsell lists 4 the others don’t mention, such as Cart upsell, Checkout upsell, Product page upsell, Product recommendations. Story Theme Apps lists 7 the others don’t mention, such as Bundles, Drag-and-drop editor, Free shipping, Funnel performance. 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 Flat Upsell, Nov 14, 2026 for Story Theme Apps; 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 Flat Upsell, Nov 14, 2026 for Story Theme Apps. 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.