SkinLens: Daily Skin Log

SkinLens is an app that records today's skin from a single selfie.
Everything from capture to analysis happens on the device, and your photos are never sent to a server.

[ A capture guide that keeps every shot the same ]
Face position and front-facing angle, open eyes, brightness and blur, and whether anything is covering your face are all checked in real time.
The shutter opens only when those conditions are met, so photos taken on different days still look alike.
Records worth comparing start here.

[ Today's skin type and four metrics ]
From a front-facing photo, your skin type is estimated as one of four: Normal, Dry, Oily or Combination.
Moisture, Sebum, Sensitivity and Blemishes are converted to a 0 to 100 scale from statistics in the photo, such as brightness uniformity, highlights and redness.
These are not learned predictions. They are reference values whose calculation is transparent.

[ The flow over 30 and 90 days ]
As records build up, you can follow your overall score and each metric on a trend chart.
Rather than comparing yesterday with today, looking at the flow across a few weeks is far more useful.
Set a reminder for the same time every day and it becomes easy to keep the habit going.

[ Photos stay on your phone ]
There is no code in the app that uploads a photo.
You do not need to create an account or sign in.
Usage statistics are off by default, and even when turned on they only send screen navigation events.
You can delete records one at a time, or clear all of them at once.

[ Who it suits ]
Anyone who wants to see with their own eyes what changed after switching cosmetics or daily habits.
Anyone who would rather keep their skin history as a record than as a memory.
Anyone who does not want to upload photos to an outside server.

[ Good to know ]
The values SkinLens shows are observational information for reference and do not replace medical judgement.
If something feels wrong with your skin, talk to a professional.
This app is free and contains ads.
Accuracy can vary with your shooting environment and lighting.