Useful but not usable... It doesn't follow Android app guidelines. You go into the sub menu to change the language settings, set it up, press the (android) back button and the app terminates. The language setting does not persist through restarts and neither do any other changes. The app also reacts very sluggish when pressing buttons (Nexus 5) making it even worse by not taking you to the core functionality by default. The fact that it sports ads despite being paid for is just the final nail in its coffin.
- bug fixing