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.
Features
What checkapp does.
Photo scans of your tongue, face and iris — only when you ask for them. Nothing runs in the background.
In short
Take a photo of your tongue, face or iris and DiDi, your digital health companion, shares a short wellness insight in plain language. You choose when. Nothing runs in the background.
Three ways to check in
Tongue, face or iris. One photo is all it takes.
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.
Small enough to do every day
A health check, every day, without an appointment.
A check-in every day
Check in on your health every day, not once a year. Open checkapp, say hello to DiDi and start a scan when you want one.
- Start a scan whenever you like
- A streak card on the home screen counts your days in a row
A short wellness insight
DiDi reads the photo you share and answers in plain language, in the same chat, with one small step for today.
- Visible signals explained in plain words
- One small next step, not a long report
You are in charge
checkapp does what you ask, and nothing else.
Only when you ask
checkapp only scans when you take a photo. Nothing runs in the background.
Permission first
Your photos are processed in the cloud only with your permission. Face and iris images are biometric data, so we ask first.
Delete anytime
You can delete your data anytime. Read how we handle it in the privacy policy.
A checkup and a check-in
checkapp does not replace seeing a doctor. It is the small thing you can do in between.
| What we compare | A yearly checkup | checkapp |
|---|---|---|
| How often | Once a year, if that | Any day you take a photo |
| Where | At a clinic, by appointment | On your phone, when you choose |
| What you get | A clinician's assessment | A short wellness insight in plain language |
| Medical advice | Yes, from a qualified clinician | No. checkapp is not a medical device |
Frequently asked questions
Is this a medical device?
No. checkapp is for general wellness only and is not a medical device.
Does DiDi diagnose?
No. DiDi shares wellness insights from your photos. It does not diagnose. For medical questions, talk to a doctor.
Does it run in the background?
No. checkapp only scans when you take a photo. Nothing runs in the background.
Where is my data processed?
In the cloud, and only with your permission. Face and iris photos are biometric. 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.