When closing from the web (mobile or full) and choosing the custom off-topic reason, the box is pre-filled with:
This question appears to be off-topic because it is about
This is quite helpful in the "avoiding carpal tunnel syndrome lawsuits" arena.
The Android app, however, does not do this. Given that it's a little bit harder to enter text on a phone or tablet than a full keyboard on a computer, this would be useful.