"Asteroid Radar" is an app that allows you to view asteroids discovered by NASA that pass near Earth, as well as NASA news that frequently reports on asteroids.

You can view the data of all the detected asteroids in the next 7 days (size, velocity, distance to Earth and potentially hazardous or not).
The information of these asteroids comes from a free, open source API provided by NASA JPL.

The app has four screens:
1) Main screen with a list of all the detected asteroids and the NASA image of the day
2) Details screen that displays the data of the selected asteroid
3) Approach screen that displays all approach data of this asteroid in the past and in the future provided by NASA
4) News screen with NASA news

You can have a look at the Privacy Policy for "Asteroid Radar" here.