[McAroni]

For your android device you sould do this in the App store.
Open the Google Play Store app .
Tap the profile icon at the top right.
Tap on Manage apps and devices.
Tap Manage and find the app you want to update manually.
Tap on the app to open its details page.
On the details page of the app, tap the three-dot menu .
Turn Automatic updates off.

For Windows i could not help you, but i guess it will be similar.