01
Set a goal
Pick a residency or travel rule that matters — 183 days in Portugal, Schengen 90-in-180, your US state's day threshold.
Your time in place, counted automatically.
Chrono tracks the days you spend in each country, state, and city — so 183-day rules, Schengen limits, and residency goals have a reliable answer.
Get Chrono
Scan to install on your phone
How it works
What Chrono does
02
Track days automatically
Chrono runs in the background and counts the days you spend in each country, state, and city. No spreadsheet, no manual log.
03
See the timeline
An honest record of where you've been. Mark moments as Chrono Verified with a biometric check when proof matters.
The outcome
What you get with Chrono
A reliable record of where you've been — across countries, states, and cities, day by day.
Goals that watch themselves. Set a residency or travel threshold once; Chrono keeps the count.
When a moment needs to be defensible, a biometric check makes it Chrono Verified.
The tools
Calculate it yourself
Day-counting rules are simple to state and easy to mis-track — a trip you forgot, a treaty exception, a state you barely entered. Run the numbers below for one situation. Then decide whether you want to keep counting by hand.
Manual to automatic
Once by hand. Then never again.
One trip, one calculator, one answer is fine. But the calendar keeps moving, the trips keep coming, and the day you forget to log is the day that matters. Chrono runs in the background so you don't have to.
Let Chrono count for you
Scan to install. Chrono starts tracking immediately.
Takes 10 seconds
Prefer to install manually?
Who it's for
Who uses Chrono
Used by people counting days for tax residency, managing Schengen limits, watching their US state residency, and keeping an honest record of the year's travel.
Identity-verified presence
A biometric check turns a moment into Chrono Verified — a defensible record when proof matters.
As recognized in
"High earners need to log their days and prove the location of everything from pets to Pelotons to show they've truly changed residency."
Bloomberg News · read the article ↗
Your timeline is yours. Chrono doesn't sell location data, and there's no version of Chrono in which it does. How we handle data →
Let Chrono count for you
Scan to install. Chrono starts tracking immediately.
Takes 10 seconds
Prefer to install manually?