How to Enable and Customise Back Tap Shortcuts on iPhone

Reaching for physical hardware buttons or swiping down Control Centre while holding a large iPhone in one hand can feel clumsy and awkward. To make common system actions faster, Apple integrated an Accessibility feature called Back Tap into iOS. By using your iPhone’s internal accelerometer and gyroscope, Back Tap turns the entire rear glass panel of your phone into an invisible interactive button. You can assign different tasks to a quick Double Tap or Triple Tap—giving you immediate access to screenshots, the flashlight, or custom automation.

Why Use Back Tap on iPhone?

Back Tap transforms daily phone handling:

• Effortless Screenshots: Take a screenshot with two quick taps of your index finger on the back of your phone without fumbling with the Power and Volume Up buttons simultaneously.
• Instant Flashlight Access: Turn on your phone’s LED torch in dark rooms even while wearing gloves or carrying bags.
• Launch Siri Shortcuts: Connect Back Tap to complex Apple Shortcuts to open specific apps, log expenses, or trigger smart home scenes.
• Works Through Most Cases: The sensitive motion sensors detect taps reliably even through standard silicone, leather, or hard plastic protective cases.

How to Enable and Assign Actions to Back Tap

Setting up Back Tap takes less than a minute in iOS Settings:

1. Open the Settings app on your iPhone (requires iPhone 8 or newer running iOS 14+).
2. Scroll down and tap on Accessibility.
3. Under the Physical and Motor header, tap on Touch.
4. Scroll down to the very bottom of the screen and select Back Tap.
5. You will see two triggers: Double Tap and Triple Tap.
6. Tap on Double Tap to review the action list:
   • System Actions: Screenshot, Flashlight, Camera, Control Centre, Lock Screen, Mute, Reachability, Volume Up/Down.
   • Accessibility: Magnifier, VoiceOver, Live Captions, Invert Colours.
   • Shortcuts: Any custom automation created in the Apple Shortcuts app.
7. Select your preferred action (such as Screenshot or Flashlight). A blue checkmark will appear next to it.
8. Tap Back and optionally assign a different action to Triple Tap (such as Control Centre or Camera).

Tips to Prevent Accidental Triggers

If you find that setting down your phone on a wooden table occasionally triggers Double Tap, assign your most sensitive actions (like Camera or Flashlight) to Triple Tap instead. Triple Tap requires three deliberate, successive taps, completely eliminating accidental activations while remaining easy to trigger on purpose.