Please, can you correcct style or mistakes of the translation if needed?
This book was developed specifically for using with a tablet. Android version is also supported by mobile phones.
Free version already contains one story, the rest three stories you can buy right from the app. There are two ways of buying in iOS version: all stories at once or each story separately. Android app will direct you to Google play page of paid version.

Question

Please, can you correcct style or mistakes of the translation if needed?
This book was developed specifically for using with a tablet. Android version is also supported by mobile phones. 
Free version already contains one story, the rest three stories you can buy right from the app. There are two ways of buying in iOS version: all stories at once or each story separately. Android app will direct you to Google play page of paid version.

Answer

This book was developed specifically for use with a tablet. The Android version is also compatible with mobile phones.

The free version contains one story, while the other three stories can be bought using the app. There are two ways of buying the iOS version, either all stories at once or each story separately. The Android app will direct you to the Google Play page of the paid version.