Stalker IPTV/Ministra on Firestick

Hi all. Found a good tv service that uses STB apps that involve the use of MAC IDs. The company is trying to make me use SmartStb but I don’t like it as it always seems to go through the startup sequence when I go into it……and that startup sequence is slowwww.

They gave me log in credentials for Stalker Tv and Ministra but I can only seem to find them for iOS devices. I have an old Apple TV and prefer to use firestick.

Can anyone help me find out if those 2 are available to sideload on firestick?