Subline vs Whatnot
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 Subline, Sep 29, 2026 for Whatnot.
The short answer
- Subline lists 6 features Whatnot’s listing doesn’t mention, including Bulk upload, Custom listings, Feed automation.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Standard
Whatnot Fees
- · 2.9% + $0.30 payment processing fee
- · 8% fee on sales price
- · Fees may be lower based on region
- · Fees may be lower based on the category
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSubline is a discovery platform for independent womenswear, on web and mobile. Shoppers browse a personalised feed, save pieces they want, and get alerted when a saved item is back in stock, drops in price, or a new collection lands — so the sale you'd have lost to a sold-out size comes back. Every purchase goes through your own Shopify checkout. You hold the customer, the payment and the data.
Whatnot helps you turn products into repeat customers. Unlike traditional marketplaces where you sync inventory and wait for orders, Whatnot puts you in front of shoppers who are ready to buy. Go live, sell products in real time, move inventory quickly, and build a loyal audience that follows your business and comes back for future shows.
- Automatic Product Sync
- Order Attribution
- Automatic Billing
- Sell at scale with a unified catalog between Shopify and Whatnot
- Automated orders and real-time inventory sync
- Update your inventory in real-time as items sell on either platform
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 |  Subline |  Whatnot |
|---|---|---|
| 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 | Subline | Whatnot |
|---|---|---|
| App Store rating | Not published | 2.9 ★ |
| App Store reviews | Not published | 13 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
FAQ
Subline and Whatnot: common questions
- What features does each app list that the other doesn’t?
- Subline lists 6 the others don’t mention, such as Bulk upload, Custom listings, Feed automation, Feed translation. Whatnot lists 2 the others don’t mention, such as Product selection, Tracking sync. 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 Subline, Sep 29, 2026 for Whatnot; 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 Subline, Sep 29, 2026 for Whatnot. 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.