Practical alarms - you set and we remind you about passes. No need to look on the phone screen and ruin your night vision. Alarm reads data about satellite. If you don't feel like making a lot of noise, plug in your headphones and hear it discreetly.
Practical guide to help you start in 5 minutes also included! Become an sky observer in the matter of minutes. No experience needed!
Are you going on a trip and want to take advantage of better (less bright) places? No problem, pick location from map, address or geographic coordinates and check events there in next days.
Internet connection is also not needed, it is enough if you connect once in a while to fetch data and that's it. If you are away from home, you can access free public hotspots to download required data and then be a happy observer for a couple days.
All passes (Satellites, ISS - International Space Station and Iridium Flares) are only those visible to the naked eye (based on the brightness of each pass and dawn / dusk time at the certain day).