What are the most used applications on your mobile device?

I have a lot of software that I use for my work, but you probably won't be interested in it. If we are talking about those programs or applications that I use every day and it really brings benefits, then I can name a few time trekking programs that help to be more productive and understand how you spend your work and free time. Also my favorite app is the getidiom. I can always find trending english news articles here. This isn't only interesting because I get new relevant information, but it's also useful for learning English, especially if it's not your native language. I advise my students from other countries to use it too, as it's simple, fun and effective.