How do I check which apps use the most RAM on my iPhone?

You are unable to natively view RAM usage of apps on the iPhone. There are some third party apps in the App Store that claim to be able to do that, but the results are unreliable due to the way RAM utilization works on the iPhone and sandboxing of each app.

An iPhone 14 Pro – the phone shown in your tag line – has 6 GB of RAM. (That amount is not enough to support Apple Intelligence, but is more than some other iPhones which support iOS 26 and 27 have.)

That model was available with 128 GB, 256 GB, 512 GB, or 1 TB of flash memory (device storage).

iOS normally handles RAM management tasks automatically on the iPhone. If an iPhone is running low on RAM, iOS may ask apps to give some back "voluntarily", and they do not give enough back, iOS may start crashing some apps to take their RAM by force. Thus if you are running a particularly demanding game, and it is crashing, you may want to try quitting other apps to see if letting the game have all available RAM helps, Otherwise there is not much point worrying about it.

If you are trying to check storage use on your iPhone, see

How to check the storage on your iPhone and iPad - Apple Support

Shenon_Perera wrote:

how do i check which apps use the most amount of ram

[Re-Titled by Moderator]

Original Title: iPhone Ram usage

You can see which apps use the most memory, but I'm not aware of any way to see which use the most RAM. iPhone automatically handles RAM as needs change.

There is no reason to do so, iOS dynamically controls RAM usage.

interfering with it usually will only cause you problems.

If you feel you must mess with it, I’m sure you can find an app in the AppStore to do so.