How to clear the cache manually for any app on an Android smartphone Sometimes it’s a third-party app gone rogue that’s hogging all that cache memory.

There are two ways to clear Messenger's cache, depending on whether you're using an Android, or an iPhone or iPad.

Facebook allows you to set Messenger for Android as your default SMS application and use it to send and receive SMS and MMS messages in addition to Facebook conversations.

If you clear the browser and app cache on your Android phone periodically, you could help eliminate performance issues on the device.