Strongbro Manifesto: 5 Rules We Hold the App To

Five rules the app is built to. They are written down so you can hold us to them.

A set should cost less than the rest between sets

Voice logging exists so a whole session costs one sentence. The keypad exists so a repeated set costs one tap on the arrow, with last session's weight and reps already sitting in the line, and a changed weight costs two or three taps more. Neither path scrolls or reloads while you are standing at the rack. When a way of logging gets slower than that, it gets rebuilt rather than documented.

Your training history stays on your hardware

Workouts, records, measurements and scans are written to your iPhone, and to your own iCloud if you switch sync on. We run no database of your lifts. That cuts both ways: nobody here can read your log, and nobody here can restore it for you. Export is built in, so the whole history can leave in a file whenever you want it somewhere else.

The AI does two jobs and no others

It turns speech into structured sets, and it scores a physique photo. It does not write pep talks, does not turn a silent recording into a guessed workout, and does not keep the audio or the photo once the response comes back. Both jobs run on a server, which is the honest trade: they need a connection, and the keypad is there for when you do not have one.

Numbers you cannot buy

The physique scan will give you a 58 when you are a 58, with a note explaining the number. Ranks move on logged training days alone, fourteen of them from Fresh Meat to Bro God, and the last sits past five hundred days. There is no purchase in the app that moves the counter, because a number you can buy means nothing.

Estimates are labelled as estimates. The one-rep max comes from the Brzycki formula and drifts optimistic above ten reps. Body fat is a BMI-derived estimate until you enter a measured value. Both are there to show a direction. The second decimal place is noise.

No feed

Strongbro will not show you other people's bodies, streaks or opinions. The only comparison in the app is you against your own last month.

If we break one of these, tell us.