Since there is no official Android APK, users typically find the game through archival sites:

The official Talking Bacteria John, John and John app, developed by iOS-exclusive title and was never officially released for Android. Talking Tom & Friends Wiki

: The original game was only for iPhone and iPad. Any APK file found online claiming to be the official "Talking Bacteria John" for Android is an unofficial port and may contain malware.

John is a cartoon microbe with googly eyes and a squeaky voice. He repeats everything you say in a high-pitched, distorted tone — classic talking app style, but with a “science lab” twist. You can poke him, make him divide (split into two Johns), or feed him virtual sugar to make him “grow.”

Designed by the legendary Outfit7 (the creators of the Talking Tom & Friends franchise), Talking Bacteria John offered a refreshingly gross and funny alternative to the typical cute pets. If you are feeling nostalgic or looking for a simple novelty app to kill time, here is why John is worth a look.