Grammar
The official English Grammar in Use app, written by Raymond Murphy.
Version: 1.11.34
Program available in: English
Program license: Free
Program by: Cambridge Learning (Cambridge University Press)
OS:
Grammar is an Android app developed by Cambridge Learning (Cambridge University Press) (University Printing House Shaftesbury Road Cambridge United Kingdom CB2 8RU).
Grammar first became available on 20 Aug 2014. It is estimated that Grammar has been downloaded between 1000000 and 5000000 times from the Play Store.
Grammar 1.11.34 requires the following permissions:
Allows applications to access information about networks.
Allows applications to open network sockets.
Allows access to the vibrator.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.