Ruannuo Bra Fit

Ruannuo Bra Fit is a gentle, pink-toned little helper for finding the right bra size. In three soft steps you'll have your size, plus a handful of style picks tailored to your scene and life stage.

How it works:
• Step 1 — Learn to measure: tape position, posture, and timing tips
• Step 2 — Enter your numbers: underbust and bust in cm
• Step 3 — Tell us a bit about you: life stage and main wear scene
You'll get your fit size in CN/EU/US/JP, plus a curated set of style recommendations.

Features:
• Records: track every measurement and watch your shape change over time
• Tips by life stage: thoughtful daily-care notes for every age group
• Multi-country size chart (CN / EU / US / JP)
• Daily-care tips: gentle washing, fabric pick, rotation cadence

Privacy first:
• All data stays on your iPhone only
• No network, no upload, no account
• No personal identity or health data collected
• One-tap clear all from My → Clear All Records

The sizes and recommendations are styling guidance only and do not constitute medical advice. If you feel discomfort, please consult a qualified medical professional.