Please consider adding tooltips to the toolbar buttons and such.
(using the Apple Magic Keyboard with Trackpad, the ‘Working Copy’ app has tooltips, very convenient…)
Yes, that's a good idea. iPadOS 15 seems to add an official way to add tooltips using the new UIToolTipInteraction API and I plan to add it to Textastic along with other improvements for iOS 15.
Customer support service by UserEcho