An app must be able to be operated in a way desired by the users. Make sure that functionality cannot only be used via touch. People using a screen reader, voice control, keyboard access, switch control, or other assistive technologies should also be able to fully operate the app.
People with disabilities sometimes need more time to navigate through a screen. It is important that the time limits can be extended.
Some users have mobility impairments, preventing them being able to shake their phone. Make sure that this kind of functionality can also be activated in other ways.