Overpass AB6A is now on the Apple App Store for both iOS and MacOS
I am working to expand support for Transceiver Control so that is a work in process. Right now it can control an iOptron Alt-Ax mount for the purposes of tracking satellites for the purposes of amateur radio and video/photography. The conjunctions calculator is also useful if you just want to position yourself for a conjunction of the Chinese and ISS space stations as they pass in front of the Sun or Moon.