Shake -

Popular on Android (especially Motorola "Moto Actions"), this allows you to toggle the flashlight on or off with two quick "chopping" motions.

A long-standing accessibility feature where physically shaking the device prompts a pop-up to undo or redo your last action, such as typing or deleting an email.

Shaking your phone while the app is open captures a screenshot and opens a feedback menu to report issues.