What are some crypto related apps that are a must have on your phone?

As the title says, what are some helpful apps, preferably free of course, you believe are essential to have on your phone?

Some examples could be: your favorite exchanges, news, charts, portfolio trackers, etc.

I personally have ledger to check my funds, Coinbase pro as my main exchange, and regular Coinbase to check the charts and for their debit card.

If you would also like to suggest Pc applications or browser extensions you’re welcome to go ahead.

Edit: Thank you everybody for all the helpful replies, I can surely say it a was productive post. I have more than five new crypto apps in my phone now.