FitGenius: AI Size Recommender vs Size Guide Studio
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026.
The short answer
- Both list a free plan. Paid plans start at $9.99/month for FitGenius and $9.99/month for Size Guide Studio.
Head to head
Free
- · 1 size chart, rule-based engine
- · 5 recommendations per month
Basic
- · 500 recommendations, unlimited charts
Pro
- · 5,000 recs, AI engine, photo analysis
Enterprise
- · 25,000 recs, priority support, API
Free
- · Manual size charts for any product
- · Size guide popup on every product page
Premium
- · Automatic size guide extraction from des
- · Full branding and design customizer
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureSizing uncertainty is a top cause of returns and abandoned carts. FitGenius adds a size recommendation widget to product pages: shoppers answer 3 quick questions on height, build, and fit preference, and get a recommendation with a confidence score and reasoning. Unlike static size charts, recommendations are specific to each product. Build size charts from templates, CSV, or manual entry.
Size Guide Studio helps clothing, footwear, and accessory stores reduce sizing-related returns. Its built-in size recommender suggests the right size for each shopper — from body measurements, or from height, weight and fit preference. Build size charts by hand or extract them automatically from product descriptions, and bulk-build guides across your whole catalog in one click.
- Instant size recommendations via a measurement-based engine or AI analysis
- Create size charts from templates, CSV import, or manual entry
- Analytics dashboard showing recommendation volume, size distribution, and trends
- Automatically build size guides from your product descriptions
- Create manual size charts for any product or a shop-wide default
- Show a clean, mobile-friendly size guide popup on product pages
- Customize the popup colors, fonts, and button to match your brand
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 |  FitGenius |  Size Guide Studio |
|---|---|---|
| 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 | FitGenius | Size Guide Studio |
|---|---|---|
| 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 | FitGenius | Size Guide Studio |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $9.99/month | $9.99/month |
| Longest free trial | Not listed | Not listed |
| Plans listed | 4 | 2 |
Listing
| Measure | FitGenius | Size Guide Studio |
|---|---|---|
| Shopify category rank | #195 | #342 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Apr 8, 2026 | Jul 9, 2026 |
| Languages | 1 | 1 |
| Developer | Fitgenius | Chic and Unique |
FAQ
FitGenius and Size Guide Studio: common questions
- Is FitGenius or Size Guide Studio cheaper?
- Both list a free plan. Paid plans start at $9.99/month for FitGenius and $9.99/month for Size Guide Studio. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- 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; 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. 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.