If you are looking for a nice modern and sleek app UI which you can modify as you wish or simply start developing it, you’re absolutely right with this User Interface.
All important screens like: egg size selection, settings, timer and custom egg calculator 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 f high quality and well organized PSD files.
I used a free font called SF UI Display which is the default OS font of Apple.