[Open Discussion] What are some mobile apps you can't live without?

I use YouTube music ALL THE TIME, then WhatsApp tho the good old txt message app on my Xiaomi based fone is not a data driven point of communication as Google's messenger has become and lastly but not least, as much as I have a Poco/Xiaomi I still use Samsung internet app. as I just love it; it's really simple and practical and well laid out, I'd use Samsung email if I could as the 4x4 widget is the best imo, maybe being a bit specific but the details on it are great but sadly it's not available as a stand alone app. And I'm a pubg'er - even tho I'm 50 the kid in me luvs a battlefield game 😁