These days, mobile connections can be as fast – if not faster – than traditional internet providers. That, coupled with the existence of unlimited data plans, means less worrying about jumping on a Wi-Fi network to download something. However, try installing an app or updating over 150 MB, and your iPhone will require you to switch to Wi-Fi. We don't think this is very fair, so this is a way out.
While Apple should be offered an iOS setting for users to select or limit these restrictions – as offered with apps like Netflix – no such preference exists. Instead, you need to take advantage of a program cavity to get your big apps to download over mobile data.
Why there is a cutoff threshold for the App Store downloads over cellular data are not obvious. Yes, it is likely that you will prevent yourself from crossing your data cap, but it is not necessarily an Apple feature in itself. The warning of 150 MB probably depends not only on which operator and plan you have, but which region you are in. It can even be something like 100 MB instead. Some users have no restrictions at all.
If you are limited, start by making sure your Wi-Fi connection is disabled, which is probably if you read this because you received the warning. In the App Store, after trying to install either a large new app or a large update to an app you already have, when you get the "App over 150MB" pop-up alert, tap "OK."
Now it's time for the hack. Exit the App Store, and you will notice that your app-to-be is now on the home screen, dimmed and labeled "Waiting". Ignore this for the moment.
Open the settings app, press "General" and then "Date and time". Make sure "AutoPlay" is disabled. Choose a new date and time, once in the future. Some users have been unable to make it work two to three days, so make sure you choose the future for at least a week to play it safely. Once you have selected your choice, you can go back to the home screen.
If everything was done correctly, you should see your "Waiting" icon as "Loading" instead, with the progress bar in operation. Go back to the App Store, and you should see the same thing there. And that's all there is.
Before the new full page office center was in IOS 10 and older, another trick would work where you would activate the aircraft mode when the message came up, shut down the iPhone, restart it, open the App Store and turn off the aircraft mode.