Hello everyone.
I thought it would be useful so i created an android app for skill calculator.
It works even without internet access.
Everything is explained in description on Google Play Store link below.
Enjoy
UPDATE:
The app has just been released again, now with tons of new features and far better UI.
You can now save your builds and load them later at any time, regardless of internet access.
Sharing builds is now also possible.
Enjoy!