The fitness tracker built for progress

Train smarter.
Get stronger.
See your progress.

Track your workouts, nutrition and progress while Gainzbook shows you how your strength compares, how far you’ve improved and what to aim for next.

Start tracking free Explore workouts

Free to get started · No credit card required

The Gainzbook dashboard shown on a laptop and phone, with this week's workouts, weekly volume and muscles worked
Your training. Clearly measured.

Everything you need to understand your progress.

Track workouts, nutrition, measurements and strength without jumping between multiple fitness apps.

Gainzbook strength level result for a bench press, showing an estimated one-rep max, an Intermediate level badge and a percentile bar
Strength Levels

Don’t just record the weight.
Know what it means.

Gainzbook turns your lifts into meaningful strength levels so you can understand where you rank, how much you’ve improved and what you need to reach the next level.

  • See your current strength level
  • Track improvements over time
  • Know what to aim for next
Check your strength
Workout Tracking

Your entire workout.
Without the clutter.

Build workouts, log every set and keep your training history together in one place.

  • Log sets, reps and weight
  • Build and save workouts
  • Follow programs
  • Review your workout summary
Start a workout
Gainzbook workout builder on laptop and phone, showing the exercise library and a live session with sets, reps and weight

A reason to come back every time

Start workout
Log sets
Finish workout
View summary
Strength level
Next target
Progress

See the work paying off.

Gainzbook brings your workout history, strength progress, body measurements, progress photos and personal records together, so you can see improvement instead of just guessing at it.

Gainzbook progress screen on a phone, showing a muscle usage radar chart and recent workout history
Nutrition

Training is only half the picture.

Log meals, calories and macros alongside your training so you can see your whole fitness journey in one place.

  • Food search across a huge product database
  • Barcode scanning
  • Saved meals for fast logging
  • Calorie and macro tracking
Start tracking nutrition
Gainzbook nutrition diary on laptop and phone, showing calories, macros, water and a logged meal
Train With A Plan

Not sure what to train? Start with a plan.

Browse structured programs and ready-built workouts for strength, hypertrophy, HIIT and weight loss.

Strength Hypertrophy HIIT Weight Loss
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Built around your progress

Your dashboard becomes more useful the more you train.

Gainzbook brings together your workouts, strength levels, nutrition, measurements and history to give you a clearer picture of your progress.

Workouts Strength Levels Nutrition Measurements History
Fitness Tools

Useful tools when you need them.

One-rep max, plate math and daily protein targets — free, no account required.

1RM Calculator Plate Calculator Protein Calculator
Explore all tools
Mobile App

Your training goes wherever you do.

Track workouts, nutrition and progress from the gym with the Gainzbook mobile app.

Get started
The Gainzbook mobile app open on a phone during a workout

Ready to see how strong you can get?

Track your workouts. Measure your progress. Reach your next level.

Create your free account

No credit card required

Explore workouts