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Building One Set To Failure

@date=2026-06-12
@tags=fitness, mobile-apps, in-progress-projects

2026-06-12-body-heatmap-ostf.png

I'm working on a gym log app called One Set To Failure. HIT-style training — one hard set, real failure, no junk volume. The app is for iOS and Android; store links aren't live yet but the site is up at onesettofailure.app.

Why bother

Most gym apps want you in there forever. More sets, more taps, more dashboards. I wanted the opposite: log the set that matters, see if you're recovered, load the bar, leave.

What it looks like so far

Recovery is the whole game for this kind of training. The muscle heatmap shows every group color-coded so you know what's ready and what's still cooked:

Muscle group readiness heatmap

Pick a location — garage, commercial gym, hotel — and you only see exercises that exist there:

Locations

The exercise grid sorts by recovery. Tap what you're doing next:

Exercise grid

Logging is built for shaky hands after a real set:

Set logging

Workouts are just ordered lists — no bloated program builder:

Workout list

Plate math on screen so you're not doing arithmetic between sets:

Plate calculator

Charts for strength and body comp — if the trend isn't moving, something's wrong:

Measurement charts

Status

Still building. App Store and Google Play listings are in progress. I'll post here when it's ready to download.

(Will post to tag completed-projects when done)