Six markers, one read.
One selfie turns visible changes into a useful check-in.
Hydration
Texture
Redness
Pores
Dark spots
Acne
Private skin journal for iPhone
Know if your skincare works.
One selfie reads six visible skin markers and follows the changes your routine makes, privately.
Designed for the daily check-in
The small details, kept together.
Sumi is a private skin journal for iPhone. One selfie reads six visible skin markers, connects them with your skincare routine, and follows your progress over time.
Private by default.
No public feed. No comparison.
Progress, without pressure.
See the pattern across days, not one perfect photo.
- Monday, checked in
- Tuesday, checked in
- Wednesday, no check-in
- Thursday, checked in
- Friday, checked in
- Saturday, checked in
- Sunday, no check-in
Routine, connected.
Keep what you used beside what changed.
Better input.
Light and steadiness checked before the photo.
Private by design
Just you and your mirror.
No public feed, no leaderboard, nothing to compare yourself against. Your full-resolution photo isn’t kept after a read, and you can delete any scan or your whole account from inside the app.
Read the privacy policyQuestions
The things people ask first.
- Is Sumi a medical device?
- No. Sumi reads what a photo can show and offers gentle guidance for your own reflection. It does not diagnose, treat, or prevent any condition. For anything medical, see a dermatologist.
- What happens to my photos?
- Your full-resolution scan is analysed and then not stored by Sumi. Only a small thumbnail is kept, in private storage tied to your account, and you can delete it at any time.
- Do I need a subscription?
- Sumi is free to try with a 7-day trial on the annual plan. Sumi Pro unlocks the full scan and routine features, with weekly and annual plans available through the App Store.
- How often should I scan?
- Once a day is plenty. The same time and the same light give the most comparable reads. Most people settle into a morning or evening check-in.
- Why does my score move between scans?
- Every read is taken fresh from the photo in front of it, so light and angle matter. That’s why Sumi shows the trend across a week rather than asking you to trust a single number.
Ready when you are
Your skin changes quietly. Keep the record.
Start with one daily check-in. Let the pattern build from there.