This is a collection of tools to help you know when the next satellite passes are happening.
On the web:
On an Android:
- ISS Detector – this is the one I use. It is the most full-featured one I have found. It also puts events in your calendar. $2.99 to track all the ham satellites.
- Look4Sat – as good as ISS Detector but does not put events in your calendar.
- ORBIT – this is a hosted open-source browser-based app. It could use some better documentation, but works very well.
On an iPhone:
- ISS Detector – this is the one I use. It is the most full-featured one I have found. It also puts events in your calendar. $2.99 to track all the ham satellites.
- GoSatWatch – well recommended. $9.99
Updated May 19, 2025. Updates, changes, or suggestions please email David, N9KT.