DerFit ‑ Size Recommender vs FitMatch Sizing Bar
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 DerFit, Jul 17, 2026 for FitMatch Sizing Bar.
The short answer
Head to head
Starter
- · 500 monthly scans
- · AI-powered sizing
- · Category-based fit logic
Growth
- · 3,000 monthly scans
- · AI body scan & perfect size
- · Custom feedback settings
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSizing guesswork costs you sales and sends returns through the roof. DerFit fixes that at the source. Unlike simple size quizzes, DerFit uses a real AI body scan — your customers take 4 quick photos, and DerFit matches their real body measurements against your garment specs for a precise size recommendation at checkout. Not a guess. Real measurements, every time. Fewer wrong sizes, fewer returns, higher margins.
🚀 FREE FOR EARLY ADOPTERS! FitMatch Sizing Bar eliminates the guesswork from buying apparel online. Shoppers simply enter their usual size (e.g., “M” or “32”), and the widget selects the matching size. Mark products as “runs small” or “runs big” – the widget adjusts the recommendation up or down. Optionally, you can require customers to use FitMatch before adding to cart, ensuring every buyer has been guided.
- AI-powered body scan delivers precise size recommendations on product pages.
- Custom admin size rules to map measurements to sizes per product.
- Easy setup — add size widget to any product page in minutes
- Size matching – Customers enter their usual size, widget picks the correct size.
- Merchant fit adjustments – Mark products as runs small/big; widget adjusts size.
- Lock add‑to‑cart – Force sizing interaction to reduce “guessed” returns.
- Global defaults + overrides – Set store‑wide rules and fine‑tune per product.
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 |  DerFit |  FitMatch Sizing Bar |
|---|---|---|
| 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 | DerFit | FitMatch Sizing Bar |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 1 | 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 | DerFit | FitMatch Sizing Bar |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $29/month | No monthly plan listed |
| Longest free trial | 30 days | Not listed |
| Plans listed | 2 | Not published |
Listing
| Measure | DerFit | FitMatch Sizing Bar |
|---|---|---|
| Shopify category rank | #198(ahead) | #480 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 24, 2026 | Jul 16, 2026 |
| Languages | 1 | 1 |
| Developer | DerFit | Apex UI Studio |
FAQ
DerFit and FitMatch Sizing Bar: common questions
- 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 DerFit, Jul 17, 2026 for FitMatch Sizing Bar; 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 DerFit, Jul 17, 2026 for FitMatch Sizing Bar. 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.