Look at settings on your Android to view the permissions for each app installed. You can customise permissions to allow or deny access to other components of your Android device.
All the useful features to control what data apps send are in settings. Select apps from the list.
You will see a list of apps installed on your Android device.
Select an app from the list. This screen shows "notification" permissions for the app and other permissions such as "open by default."
Select permissions and use the slider to select which of the components you want the app to use.
Some apps such as Facebook require a lot of permissions. This installation has 34.
You can control notifications, pop ups, and security features from the app screen.
You can configure each app to allow, reject, or ask (in some versions of Android OS) for access to each of the features.
Tap the feature that you want to change and select your option.
Some versions of Android have fewer permissions, but you can still modify them to suit your requirements
For each app, select which features you want the app to use. Here, I have disabled the calendar camera, storage, and telephone.
Some apps have fewer permissions that you can modify.
Configure the features you want to use. Remember, some features of the app may no longer work if you have disabled a key function that the app needs to work as normal.