I'll need to cite sources for the information about version 1.6 being the 10th version, the download links for version 1.7.9, and the APKPure page. I'll also cite the Speedrun page for version archives.

Avoid the first five Google results (they are often malware). Look for communities like:

Leo hesitated. The atmosphere in his bedroom felt heavier, the air colder. He hit 'Start'.

But as Leo maneuvered his character through the digital hallways, the glitches began.

Making the player invisible or invincible to Granny.

The term "Granny 10" usually refers to one of the following: Fan-Made Mods:

Stick to reputable APK archives known for their security checks.