Which one is correct/most scientific?
- I am developing a certain application for Android.
- I am developing a certain application on Android.
- I am developing a certain application for the platform Android.
- I am developing a certain application on the platform Android.
- ???
- I am developing a certain application for Android.
- I am developing a certain application on Android.
- I am developing a certain application for the platform Android.
- I am developing a certain application on the platform Android.