Verified presence
Identity tied to location. Not just a device ping.
- Biometric confirmation when a moment needs to be provable.
- A signed, timestamped check-in — not a passive GPS read.
- Built for the day you have to demonstrate you were there.
Trust
Proof matters.
When one day can change your tax status, your record needs to be right.
As covered 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 on BloombergHow Chrono holds up
Built to produce a record that defends your position.
Continuous record
Every day, logged when it happened.
Chrono runs in the background across all your devices. No manual entry. No forgotten trips. No gaps the record has to explain later.
Global & granular
Countries, states, and cities — at the same grain.
Cross-country travel, US state residency, city-level day counts. One system that scales from a Schengen window to a New York audit.
Record integrity
Contemporaneous, not reconstructed.
The record that holds up in an audit is the one made at the time. Spreadsheets and memory don't survive scrutiny. Chrono's does.
Privacy
Your record belongs to you.
Ownership
You own your location record.
Subscribers keep full control of their timeline — view it, export it, share it, delete it at any time.
No sale
We don't sell subscriber location data.
Not to advertisers. Not to data brokers. Not aggregated, not individual. Not for any purpose.
Purpose-limited
Used only for the service you signed up for.
Subscriber information is processed solely for the purposes set out in the Terms of Use. Anything broader — research, benchmarks — uses aggregated, de-identified data only.
You control access
Sharing happens at your direction.
Handing a Chrono report to a tax professional or attorney is a decision you make, account-side — not a default, not something we facilitate without you.
4.6 rating on the App Store