Tongue
Tap Start Tongue Scan on the home screen. DiDi notes visible signals like colour and coating, then explains them in plain language.
Natural light works best.
How it works
A daily check-in in three small steps.
checkapp turns a health check into a daily ritual. Snap a quick photo of your tongue, face or iris — DiDi, your digital health companion, gives you a short wellness read. On your terms, when you choose.
Meet DiDi
Your digital health companion
Meet DiDi
Meet DiDi, your digital health companion. It shares gentle wellness insights from the photos you choose to take.
- You choose when to start a scan
- Nothing runs in the background
- A streak card on the home screen counts your days in a row
Three steps
Photo, insight, nudge. Then back tomorrow.
Take a photo
Take a photo of your tongue, face or iris.
Read the insight
DiDi reads the photo and shares a short wellness insight.
Use it as a nudge
Use that insight as a nudge for your day — then come back tomorrow.
Tongue, face or iris
Pick one, take a photo, and DiDi takes it from there.
Face
Take a quick photo of your face. DiDi reads it and shares a short wellness insight in plain words.
Face photos are biometric data, so checkapp asks your permission first.
Iris
Take a close-up photo of your eye. DiDi reads it and shares a short wellness insight in plain words.
Iris photos are biometric data, so checkapp asks your permission first.
Your data
Your photos, your call
Your photos are processed in the cloud only with your permission. Face and iris images are biometric data, so we ask first. You can delete your data anytime.
- Photos are processed in the cloud only with your permission
- Face and iris photos are biometric, so checkapp asks first
- You can delete your data anytime
checkapp is for general wellness only. It is not a medical device and is not intended to diagnose, treat, cure or prevent any disease. Not for emergencies. Always talk to a qualified clinician for medical concerns.