The main culprits of memory-hogging are pretty much the same across all devices. Memory munching apps can be split into two categories:
Some apps collect and store huge amounts of data simply by running. They’re constantly on in the background and consequently always collecting information. Popular apps that work in this way include Facebook, Instagram, Twitter, Facebook Messenger and Whatsapp.
There are also the apps that use little memory space when running but use huge amounts when you download things or store optional extras within them. One example is Spotify, which doesn’t use masses of memory to run but will use a lot if you’re downloading songs to your phone rather than streaming them. Other examples include TV and movie streaming services like iPlayer, All4 and Netflix.