Mirror Diary compares you to one person only: you, ten days ago.
No ranking. No score out of ten against strangers. Just a daily reading of what is actually changing in your own face, and a written report every ten days telling you which habits moved the number.
HOW IT WORKS
Day 0. Your first scan names the three signals working best for you today, then records a starting point. That number is not a verdict. It is the line everything else gets measured from.
Day 1. The camera shows a faint ghost of yesterday's scan so you can match the angle. Both photos are read together, so the app reports what changed instead of scoring you from scratch.
Every day. Five taps to log what applied: slept, hydrated, moved, drank, stressed. Three seconds. This is the other half of the data.
Day 10. Your first report arrives. It names your strongest lever, cites the actual averages behind it, and tells you honestly which habit did less than you expected.
WHAT IT MEASURES
Six modifiable signals: skin clarity, eye area, hydration, radiance, grooming, posture.
It does not measure bone structure, symmetry, or anything else you cannot change. It does not compare you to other people. There is no leaderboard and there never will be.
YOUR PHOTOS STAY ON YOUR PHONE
This is the part most apps in this category get wrong. Your scan is sent for a single reading and discarded in the same request. Nothing is stored on our servers. The only lasting copy lives in the app's private storage on your device.
We build no facial recognition templates. We keep no images. What sits in the cloud is numbers: your scores, your habit log, and dates.
Delete every photo from Settings in one tap, without deleting your account. Or delete everything, permanently.
We analyze, then we forget.
WHY ONE SCAN A DAY
Because more than one ruins the data. The difference between morning and evening light is larger than most real day to day change, so a second scan adds noise instead of information. Same light, same time, once a day. That consistency is the entire reason the number means anything.
SHARE WHAT YOU BUILT
Three cards, free for everyone. A progress card with your first and latest scan side by side. A streak card with no face on it at all. A contact sheet of every scan you have taken.
FREE AND PREMIUM
Free forever: your daily scan, your baseline, your streak, and your share cards.
Premium unlocks the full six signal breakdown on every scan, your ten day reports, and your complete timeline.
HONEST ABOUT WHAT THIS IS
Mirror Diary is a general wellness tool for self reflection. It is not medical advice, diagnosis, or treatment. The reports describe differences observed across a small number of days, not proven causes. Lighting, sleep timing, and mood all leave marks on a face, and the app says so on the report itself.
If tracking your appearance makes you feel worse rather than better, stop using it. That advice is in the app too.
Questions: mirrordiaryapp@gmail.com
Privacy: mirrordiary.app/privacy
Terms: mirrordiary.app/terms
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