AI Body Scan
Full measurements in seconds
Skin Tone Match
Perfect cosmetics every time
Smart Fit
95% accuracy across 500+ brands
Zero Returns
60% fewer sizing returns
TrueFit™ Engine
Distortion-free accuracy
Wardrobe AI
Smart outfit styling
Sizie uses AI, augmented reality, and computer vision to eliminate sizing guesswork — so every purchase fits perfectly.
No credit card required · Free forever plan available
95%
Fit Accuracy
60%
Fewer Returns
500+
Brand Partners
2M+
Happy Users
One app. All your sizing needs sorted — from fashion to beauty.
Scan your body with your phone camera — get precise measurements in seconds, no tape measure needed.
Our proprietary TrueFit engine corrects for clothing distortion so measurements stay accurate however you dress.
Our AI detects your exact skin tone and undertone so you always find the perfect foundation and cosmetics.
Cross-reference your measurements with brand-specific size charts for a 95% accurate fit, every time.
Track what you own, plan outfits for any occasion, and let your AI stylist put looks together for you.
Save sizing for the whole family — children, partner, parents — and shop confidently for everyone.
Trusted across every category
Start for free. Upgrade when you're ready.
Free
£0/mo
Premium
£5.99/mo
or £59.99/year — save 2 months
Pro
£9.99/mo
or £99.99/year — save 2 months

Join over 2 million people who've stopped guessing their size and started shopping with confidence.
Real results from the Sizie community.
“I haven’t returned a single item since I started using Sizie. The fit is spot on every time.”
Priya M.
Premium member
“The cosmetics shade matching finally got my foundation colour right. No more guessing!”
Sarah K.
Pro member
“I buy for my whole family now — my partner, my kids — all from one app. Game changer.”
David O.
Pro member
Join the Sizie Partner Programme to reduce returns, boost conversions, and give your customers perfect-fit recommendations.
Questions about Sizie TrueFit, partnerships, or anything else? We’d love to hear from you.