Train. Eat. Progress.

Gainzbook for iPhone and Android puts your workouts, nutrition and strength progress in one app. Log every set, track every meal, and see how much stronger you're getting.

Gainzbook app screens showing a workout in progress, daily nutrition and strength progress

Log workouts fast

Start a saved workout or a quick session, then log each set with the weight and reps lined up for you. A rest timer runs between sets, and Gainzbook tracks your personal records as you go.

Track food and macros

Search foods, scan a barcode, or describe a meal in your own words. See calories, protein, carbs and fat against your daily targets, and log your water.

See your progress

Follow your lifts over time, check your strength level from Beginner to Elite, and keep body measurements and progress photos in one place.

Training tools

One rep max and plate calculators, plus deload planning, are built into the app. Many are also free on the web: see the calculators.

Works offline, syncs everywhere

Log in the gym even with no signal. Your data syncs to your Gainzbook account and is waiting for you on your phone and at gainzbook.com.

Free to start, Premium when you want more

The core app is free. Premium adds advanced features such as the muscle heatmap and extra training tools. Manage or cancel it at any time from your App Store or Google Play account.

Questions?

Visit Support or email hello@gainzbook.com.

Get started today

Create your free account now and sign in with it in the app.

Create Free Gainzbook Account