If you are looking for a nice modern and sleek fitness app UI which you can modify as you wish or simply start developing it, you’re absolutely right with the DoIt Fitness App.
All important screens like: workout detail, statistics, messages etc. are included.
If you need to modify the theme you can easily change the colors and change the single elements. Only vector shapes and layer styles were used.
You’ll receive 8 high quality and well organized PSD files. The images are not included.
I used a free font called Raleway which can be found on Fontsquirrel.