Know exactly how many days you spent in each country.
A self-hosted GPS day counter for residency and visa limits. Your phone logs where you are, your own server counts the days and checks them against the rules you set. Your location data never leaves your machine. Free and open source.
Days per country, and per US state or region where it matters, checked against calendar-year caps and rolling windows.
Runs on a server you control. No accounts, no cloud, no tracking. Location data stays local.
Interface in English, Russian and Spanish. Country names translate automatically for anywhere you go.
Impossible "teleport" points are filtered out; each day is attributed to where you actually were.
A donut, a calendar, a per-month chart and a days-left table. Self-contained, opens anywhere.
Optional, free tamper-evident anchor of your track via OpenTimestamps. No wallet needed.
rules.json and let cron do the rest.# on your server git clone https://github.com/bermana-net/daco.git cd daco pip3 install reverse_geocoder babel --break-system-packages bash run.sh # builds out/report.html
Full step-by-step setup, including the GPSLogger Android configuration, is in the README.