Please add a possibility to change font size in the app! So many settings for mail notifications and no simple Aa button to adjust font size! Seems like the only way is to make fonts in system settings HUGE. But what if Im fine with font size in other apps, and here its really smaller. Check how its done in apps like Guardian, iBooks, etc, where you read a lot. Its common sense - if text is everything what app provides, it should be perfect for the user. Customizable.