u/CountyTracker

CountyTracker is free and open source. It uses GPS while the app is open, but only rough location from cell tower pings when in the background so it doesn’t drain your battery. All data stays local on your phone. It can import and export mapchart compatible files, and counties can also manually be toggled. Long press to get directions when exploring new counties. I made this for my own county tracking, but I hope the community appreciates it as well.