Survey: What's the most wanted feature to be added to Mathmatiz?

Mathmatiz Ver 3.1.2 Updated

What's new in this update:

Bug Fix:
-Fixed the bug of "=" in candidate view.

Improvements:
- Improved keyboard layout for smart phone and tablet.
To switch between keyboards, go to Menu->Preference->Keyboard layout
(Smartphone users can also use tablet keyboard, however the keys will be really small)
Smart Phone Keyboard:

Tablet Keyboard: