The Sat.tv app is no longer available :(
However, you can still find all the information about your channels via the www.sat.tv website, or directly from the program guide of your Sat.tv decoder :)
Sat.tv decoders are available via the Top 5 distributors.
Find out more about Sat.tv on YouTube:
https://www.youtube.com/channel/UC20QcIRQyrZbbAGu_JgLpQg/featured