Getting more internal space for apps - Android
Just the Android OS takes half that space, leaving very limited space for apps like Facebook, Facebook Messenger, Instagram, Snapchat and Whatsapp.
Installing something else may be a hurdle.
Unfortunately some preinstalled apps and games can't be removed, only deactivated, but still take space.
External memory can't help as we can't install those apps in the SD card.
Is there anything we can do to get some space?
My wife's Android version is 6.x, and her mom's is 4.xx or 5.xx.