Log workouts in seconds,
not minutes.
A minimal workout tracker built for the gym floor. Big buttons, fast logging, AI that actually helps. No bloat.
Works on any device. No app install required.

Built by lifters, for lifters
Works offline
Export your data anytime
Everything you need. Nothing you don't.
Most apps make you tap through 5 screens to log a set. We made it 2.

Gym-Floor Fast
Log sets between reps, not after your session. Works with sweaty hands, bad signal, and zero patience.

AI That Helps
Generate routines based on your goals and equipment. Not AI that makes you watch ads.

Your Data, Always
Export everything as JSON. No lock-in, no hostage data. Switch anytime.
How it works
From zero to lifting in under a minute.
Sign up
Create an account in seconds. No credit card, no commitment.
Start a workout
Tap an exercise, set your weight and reps, start logging.
Track progress
See your history, PRs, and trends. Export anytime.
Why we built this
We got tired of workout apps that felt like tax software. Five taps to log a set. Subscriptions for basic features. Data locked behind paywalls.
OpenTrainer is the app we wanted to use. Fast, focused, and respectful of your time and data.
Simple pricing
Everything is free while we're in alpha. Help us build the best workout tracker.
Free
Forever free
- Unlimited workout logging
- Exercise library
- Workout history
- Rest timer with haptics
- 1 AI-generated routine
Pro
Free in AlphaFree while we're in alpha
- Everything in Free
- Unlimited AI routines
- Weekly performance assessments
- Training Lab insights
- Full JSON export
- Priority sync
Frequently asked questions
Ready to simplify your training?
No tracking pixels. No selling your data. Just a workout log that works.