228 reviews
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Download size

4 MB

Last updated



Works with

  • Windows Phone 8.1
  • Windows Phone 8

App requires

  • phone identity
  • music library
  • media playback
  • data services
  • movement and directional sensor
  • web browser component
  • HD720P (720x1280)
  • WVGA (480x800)
  • WXGA (768x1280)
What's this?

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Grow stronger and build muscle everyday with this cutting edge weight training/bodybuilding app. You will be motivated to workout harder, strengthen your muscles, and gain more energy.

Whatever your fitness or training goals are, GymBuilder will help you to achieve them. Create your own personalized workout for the gym and track your progress with the help of powerful charts.

Facebook & Blog:

Key features:
• Included exercise database with detailed instructions
• Create your own exercises, either cardio or weights
• Customise your workouts, assign set/rep targets
• Clone workout/Create workout from a previous session
• Simply browse or search for exercises
• Modify past entries to correct mistakes
• Automatically hints weight and reps based on previous sets
• Track body measurements and weight + chart history
• View your history in detail including multiple chart options
• Automatic countdown timer between sets
• Share your strength records with friends via Facebook or email
• Automatic OneDrive backup and restore
• Export all our data to CSV
• Live tile support, including transparency

• Identifies which OneDrive backups are automatic
• OneDrive restore list is now sorted by date
• Improved error reporting on failing OneDrive backups
• Improved progress reporting for OneDrive backups

• Automatic OneDrive backups - Log into OneDrive and setup your backup frequency
• Minor bug fixes throughout

See for up to date details.
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  • by Jessica 4/14/2015
    I have been greatly impressed with the app. There are not very many apps like this for windows phones. Great job!
  • by tommy 4/12/2015
    I like the ability to record body fat %
  • by Isaac 4/10/2015
    Great app
  • by Eric 4/3/2015
    Great app, gets better the more you use it and figure it out.
  • by Tyson Wahyu 3/31/2015
    It has a lot of exercise list including the corresponding muscle with instruction, the profile page also well animated. But... It lack graphic/picture instruction which available in other gym app that I used (but the other gym app also has it's own disadvantage compare to this app), so if this app get an update with detailed "how to" instruction picture (or short video if possible, would be nice) then it'll be the best gym app in Windows store. Instruction with picture will be available with the next update (said the developer).
  • by Jack 3/31/2015
    What an amazing app!!! Thank you so much for the support on Windows platform. I truly hope you will continue to update this awesome tool. This is the best Gym logbook ever!!! No crash on my Lumia 1520 Denim.
  • by Carter 3/30/2015
    Has completely changed the way I work out. The integrated timer and Modern UI keeps me focused on my workout while tracking.
  • by haji 3/29/2015
  • by Joshua 3/28/2015
    Pretty good app, the only down side is that it's missing workouts like Seated Overhead and Hang Clean. Other than that its a perfect workout companion
  • by Viswanathan 3/28/2015
    Great app software