>>2669284Unironically any GPS app on your phone, even shitty ones coded by Ramjesh that are probably spyware, any Garmin, any ATAK, anything is completely and perfectly fine for what you're going to use it for. ATAK is niche software, if you aren't worried about coordinating and real time tracking multiple groups of people it's kind of pointless. Even in the Army we prefer not to fuck with it when we don't really need to.
