I am right now in the last effort to publish Skyty 1.2 with a new NightSky Feature to identify star, planets and constellations on night flights. Hope to be able to release within next days. Let me know if you're interested in a TestFlight.
Skyty turns your iPhone into an offline flight instrument. See your real altitude above ground, ground speed, heading, nearest airport, and ETA — all calculated on-device using NASA terrain data. No internet, no flight number, no tracking. Just GPS.