With this app you will be able to search more than 35.000 airports around the world for data about runways and radio frequencies.
You will also be able to watch the selected airport on a map with markings for the runways.
Airport diagrams/charts for about 400 US airports is available for download in the app.
This is not to be used for real aviation, but for flight simmers, planespotters or other hobbyists.