Describe a mobile phone app that you use a lot

An app I use constantly is a digital map and navigation application. I downloaded it about four years ago, when I moved to a new city for university and had no idea how to get around.

I first heard about it from a classmate who showed me how it can plan a route, show live traffic and even tell you exactly when the next bus will arrive. I installed it that same day, and I now open it several times a day. I use it to find the quickest way to places I haven't been before, to check how crowded the road is before I leave home, and to look up the opening hours and reviews of cafés and shops. I've also saved lists of my favourite places, so whenever I travel, I can see them marked on the map.

I find it incredibly useful for a number of reasons. First of all, it saves me a lot of time. Thanks to the traffic updates, I've avoided long delays on the way to important appointments many times. Secondly, it gives me confidence. I'm not worried about getting lost anymore, even in an unfamiliar country, because I have a detailed map at my fingertips. Thirdly, the interface is very intuitive, so I didn't need any instructions to learn it. The only drawback is that I probably rely on it too much, and my own sense of direction has become weaker. A few weeks ago my battery died, and I had trouble finding my way back from a friend's house, which was a bit of a lesson.