In Concepts for iOS, you’ll find the text tool either on the tool wheel, or under My Brushes in the Brushes menu (where you can change your preset tools). Tap an active tool or double-tap an inactive tool on the tool wheel to enter the Brushes menu. Scroll through the tools to find the “A” or Text tool, then close the menu and tap anywhere on the canvas to bring up the keyboard.

Concepts for Windows and Concepts for Android do not have a text tool at this time.