GET TAK

TAK for Android - ATAK

TAK for Windows - Contact us for a download link for WinTAK

TAK for IPhone - ITAK

WebTAK - Contact us for manual certificate

If you havn't done so, register for an ATXTAK account for access:
ATXTAK Account Registration

Note for ATAK users: 
Plugin versions must match server version.

ATXTAK Current Version 5.2