How are "programming" "coding" and "developing" different? Is a "tap" different from a "click"? How about "swipe" vs "drag"?
Sometimes we use different words in different contexts. Language usually doesn't make logical sense. In mobile environments you sideload to get the binary onto the device and use the OS to properly install it. This dates from a time where putting the binary on the device was the difficult part. Devices didn't have standard ports or fast/free wireless data. You had to do something special to transfer the data.
In a lot of cases, installation was also a separate special process involving the command line. It wasn't always just tapping the install button.
Sometimes we use different words in different contexts. Language usually doesn't make logical sense. In mobile environments you sideload to get the binary onto the device and use the OS to properly install it. This dates from a time where putting the binary on the device was the difficult part. Devices didn't have standard ports or fast/free wireless data. You had to do something special to transfer the data.
In a lot of cases, installation was also a separate special process involving the command line. It wasn't always just tapping the install button.