Every Android owner understands this kind of situation where your apps will just update automatically even without you granting it any prior access to do that. One thing all Android users dislike is their device controlling them: “WTF! This is not Windows, I’m the administrator here”. Sorry to hit you windows guys.
Disabling auto update on Android is is as simple as putting your device to sleep, you just haven’t been paying attention.
Lauch the Google Play Store app, navigate to settings and click on Disable Auto-Updates and set to your preferred option.