In version 2.4.0 of the Memory-Map iOS app, the toolbar at the bottom of the main screen should have 6 buttons, like this:
If the right-arrow button is missing, please check the following:
- Go to the Settings app, General, Accessibility, and turn off the "Zoomed" mode.
- If you have an iPhone SE 1st generation, turn the phone to landscape mode to access the flip side (with screen rotation enabled). iOS is not able to resize the toolbar to fit your phone in portrait mode.
If the Overlays button is missing (second from right) it means you are not running the latest version of the app. You need iOS 11.4 or later to update the app.