Three apps on your phone you can't live without?

Three apps on your phone you can’t live without are?

Bible apps since sometimes I am busy with my work I don’t have time to open a Bible so I only open the Bible apps on my phone while on my way to my workplace or I had a vacant time. And it also reminds me of every hour. I put an alarm on it.
Google helps a lot because google has everything that we want to search for or want to know about this world.
and lastly is my phone Gallery because all the picture of my loved ones is in there also it is my treasure.

I use messenger app, bible app, calendar very often.