Let's take a look at this interesting interaction design concept of a transit tracker by Matteo Mapelli. As I am starting to see a trend with designers using the font: Montserrat; it's a great readable font especially on apps.
Ruslan Kulikov is a UX/UX designer based in Moscow, Russian Federation, he has shared an interaction design for Frisbee, an in-depth team management application where you can set up your team, control budget, communicate and more. Taking a closer look at his concept, there are a few very interesting ideas that Ruslan has conceptualized. On mobile for example, a little detail that makes the difference is how the prominent action is differentiated by color and labeling at the same time. One small detail that does the difference, check out the entire case study on Behance.