Cooties are not real, but that doesn't mean you can't pretend to test for them! Cootie Tester provides the ability to create a fake cootie test result, simply by pressing on a certain part of the test button.
Press the "Start Test" button. If you tap the left side of the button, you will get a "negative" test "result"; if you tap the right side of the button, you will get a "positive" test "result."
Hold a finger against the device's back camera. The app will detect when a finger is present, and pretend to measure the finger to obtain a cootie "sample."
Wait for the app to pretend to finish processing the cootie "sample."
The test "result" will then appear onscreen.
Cooties are not real, but that doesn't mean you can't pretend to test for them! Cootie Tester provides the ability to create a fake cootie test result, simply by pressing on a certain part of the test button.