You were sharp, in rhythm, or running low.
Eight hours down and still flat. Five hours and somehow fine. MindOS reads your night and your morning heart from the phone alone, then tells you what carried your day and what dragged it. In words, never a score.
Get MindOS freeiPhone only. The daily read is free, forever.
Open MindOS once a morning and walk through your day before it starts: how long you slept and how settled the night was, your morning heart reading, where today stands against your own usual, what carried it, and the one thing worth doing about it. Two minutes, in real units. Then you get on with your day.
Hours and minutes, how settled the night was, when it started and ended. Lay the phone on the mattress; nothing is recorded and nothing leaves the phone.
A 60-second fingertip reading on the camera gives your morning HRV and resting heart rate, the signal your read leans on most. A spot reading, treated as one.
Your screen time against your own usual, the one input no wrist device can see. A gentle daily intention, never a lockout.
MindOS is built around sleep regularity: going down and waking around the same time is the strongest lever most people have. The app learns your own baseline over two weeks and reads every day against it, in words like sharp, in rhythm, and running low.
Your low days and your strong days are compared to you, never to other people. And when you are at an extreme, you get the one forward call the data honestly supports: your low days usually bounce back.
After the first week, MindOS draws your Energy Fingerprint: how steady or swingy your energy runs, how fast you rebound, when your usual high lands. A description of your data, not a grade of you. Share it if you like it.
And as your history builds, MindOS surfaces patterns in your own days: on nights you sleep later, does your morning dip? Each pattern shows its sample size, and nothing is claimed as a cause.
The full method, including the validation numbers we publish against ourselves, is on the science page.
The daily loop is free: your morning read, last night in real units, the morning heart reading, your screen intention, and your Energy Fingerprint.
MindOS Pro adds your personalized energy curve, the full pattern set, 30 and 90 day history, and the forward outlook. 2.99 USD a month or 19.99 USD a year, after a 2-week free trial.
Get MindOS freeEverything is computed and stored on your phone. No account, no server.