residex.ioEvery trip accounted forCount your days in every country. Know before you cross the line.
residex.io counts the days you spend in each country and applies each country’s actual rule — the 183-day rule, Schengen 90/180, the US three-year test — so you are warned before a trip becomes a tax or visa problem. On your device, with no account.
No account · Nothing uploaded · Free, with no expiry date
What residex.io does
The same screens you will find in the app — nothing staged.
It is not just the 183-day rule
Every country counts differently — a calendar year, a rolling twelve months, a tax year starting in April. The US weighs three years at once; Ireland adds two together. Residex applies each rule as it is actually written, and counts the arrival and departure days that most tests count and a night count misses.
The Schengen 90/180 Rule
Ninety days in any rolling 180 — and why the window never resets
Read the guide →The US Substantial Presence Test
How four months a year, every year, can make you a US tax resident
Read the guide →The UK Statutory Residence Test
Where the line sits depends on your ties — and the year does not start in January
Read the guide →Spain’s 183-Day Rule
Sporadic absences count as days in Spain — so a weekend away does not stop the clock
Read the guide →Portugal’s 183-Day Rule Over Any 12 Months
A rolling window — so splitting a stay across New Year changes nothing
Read the guide →How Long Can a Green Card Holder Stay Outside the US?
Six months draws questions, a year draws a presumption — and the days are counted continuously
Read the guide →Everything you need to track, free — with no expiry date
No subscription, no trial, no paywall around your own travel history. Trip tracking, country totals, threshold warnings and encrypted backup are free, and will stay free.
Advanced capabilities — rebuilding years of history from your photos, for example — may become optional paid extras one day. Core tracking will not.
Learn the basics
Residex tracks your presence. Amanda helps interpret the wider compliance picture.
residex.io tracks where you have physically been, and tells you where that puts you against each country's own residency threshold.
What it does: • Counts your days per country, and per area for the Schengen 90/180 rule • Applies each country's actual rule — 183 days for most, 180 for Thailand, the UK's 6 April tax year, Portugal's rolling twelve months, and the US weighted three-year test • Counts days the way each rule counts them, including the arrival and departure days that most tests count and a nights-based tally misses • Warns as you approach a threshold, and can notify you on the date a trip you have already planned would take you across it • Exports to CSV, or hands off to Amanda for the compliance picture
Built for digital nomads, frequent travellers, expats, and anyone whose year is split across borders.
On your device, and nowhere else. There is no account, no login, and no copy of your travel history on our servers — residex works offline because the data never needed to be anywhere else.
It leaves your device only when you decide to send it: • A backup file you save yourself • A transfer to another device, encrypted with a code only you hold — the server relaying it cannot read what it is carrying • A hand-off to Amanda, which you start
We do receive a small amount of anonymous usage information — how many trips are in a log, how old an install is, the language the app is used in, and a random identifier that is not linked to you. Never a trip, a date, a destination, or your name. It is listed in full in our Privacy Policy.
The trade-off worth knowing: because your device holds the only copy, clearing your browser data or deleting the app erases it, and we cannot restore it. Save a backup before you switch devices.
No — residex is a day counter, not a compliance engine. It flags when you cross a threshold like the 183-day rule, but turning that into specific filings, tax exposure, or reporting obligations depends on your jurisdictions and personal ties.
For that, our partner Amanda maps your full cross-border legal exposure across countries, surfaces the filings and deadlines you trigger, and turns the data residex collects into a concrete compliance picture you can hand to your accountant.
You can export your residex trips and import them straight into Amanda — the CSV formats are aligned.
Start in under a minute
No account · Nothing uploaded · Free, with no expiry date
Take residex.io with you
Now available on the App Store and Google Play.
Need a deeper compliance check?
Residex tracks your presence. Amanda interprets the wider picture — the filings, deadlines and obligations your travel may trigger across borders.