Vivariety: Size & Fit Checker
Fit Confidence Score for Women
Free · In-App Purchases
Vivariety is a personalised size and fit recommendation app for UK women fashion shoppers. The days of guessing whether you're a 10 or a 12 for an outfit from your favourite high street retailer brand is history. Vivariety gives you your exact size — with a Fit Confidence Score — across ASOS, M&S, H&M, Next, River Island and New Look. Just paste the product URL and get your accurate size and fit details (tailored to your body) for that outfit in seconds. Shop with confidence.
THE UK'S SMARTEST SIZE RECOMMENDATION APP
Over 70% of fashion returns happen because of sizing. Vivariety was built to fix this — with an intelligent system that learns your measurements and matches them to real retailer sizing data, garment by garment.
THREE STEPS. TOTAL CONFIDENCE.
This is how it works:
Step 1 — Build Your Fit Passport
Enter your measurements once. Takes less than 60 seconds.
Step 2 — Paste a Product Link
Copy any item URL from ASOS, M&S, H&M, Next, River Island or New Look.
Step 3 — Get Your Size + Score
Your recommended size. Your Fit Confidence Score. Your fit notes. Before you tap Buy.
WHAT MAKES VIVARIETY DIFFERENT
Fit Confidence Score — not just a size recommendation, but a percentage that tells you exactly how sure we are.
Cross-retailer — one app for all your favourite UK brands.
Instant results — paste a link, get your answer in seconds.
Built around your body — not a generic chart.
No more bracketing — no more ordering a 10 AND a 12 hoping one fits.
SUPPORTED BRANDS
ASOS · M&S · H&M · Next · River Island · New Look (More coming soon)
REAL WOMEN. REAL RESULTS.
“I used to order multiple sizes every time. It's amazing to have an app that tells me exactly my size — and it's actually accurate.” — Gemma, 29
“Shopping online used to stress me out. Now I paste a link and instantly know my best size. It feels like having a personal shopping assistant.” — Kat, 35
Download now. Shop with confidence.
CORE SUBSCRIPTION
Free to try. Upgrade to Core to unlock:
- Unlimited size checks
- Fit confidence score on every recommendation
- Detailed fit reasoning (where a size runs tight, loose, long, or short on your specific measurements)
Questions or feedback? Email support@vivariety.com.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Terms & Conditions: https://www.vivariety.com/policies/terms-and-conditions
Privacy Policy: https://www.vivariety.com/policies/privacy-policy
Bug Fixes
The developer, Ihcanum Enterprise Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Purchases
- Contact Info
- Identifiers
- Usage Data
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Ihcanum Enterprise Limited
- Size
- 10.3 MB
- Category
- Shopping
- Compatibility
Requires iOS 16.6 or later.
- iPhone
Requires iOS 16.6 or later. - iPad
Requires iPadOS 16.6 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Vivariety Core Monthly £10.99
- Vivariety Core Annual £95.99
- Copyright
- © 2026 Ihcanum Enterprise Limited