Tongue Light

(App Store link coming soon. this is a placeholder for the required tech support / privacy page.)

Tongue Light is a simple iPhone app that uses the front-facing camera on the phone to detect if your tongue is sticking out; once your tongue is out more than halfway, it will turn on the torch light on the back of the phone and light up the screen - and, optionally, play a sound.

Tap the screen for some settings. You can choose whether sticking out your tongue

• turns on/off the torch light on the back of the phone;
• changes the screen from black to white;
• displays a face emoji that flips from tongue-in “🙂” to tongue-out “😛” ;
• plays an ahh-OOO-gah sound.

The settings view also display a live graph of the detected position of your tongue, from 0.0 (in) to 1.0 (out.) Once your tongue crosses the 0.5 point, the selected actions happen.

Tongue Light will probably also work on an iPad, provided you’re in full-screen mode, but it won’t work if you are multitasking.

Privacy

Tongue Light collects no personal information of any kind. It uses the front-facing camera and Apple’s ARKit framework to detect the position of your tongue, but it does not actually snap or save any pictures or other personal information.