Set it once. Know exactly where you were. Give your advisor the proof.
An automatic, exact record of every day you spend in every country. Set your own day limits, get a heads-up before you reach them, and export a log your accountant can work from, so you and your advisor can settle your tax residency with facts instead of memory.
14 days free, then $14.99/month. Email only: no name, no passport, no ID.
See it in action
Real screens from the app, not mockups. Open it and your position is already there: no spreadsheets, no reconstructing the year from boarding passes.
Every design decision serves one goal: an accurate, auditable record
Not a fitness tracker repurposed. Not an expense app with a day counter bolted on. DayTrace is built from the ground up to produce the day record you and your advisor need to work out your tax residency.
Passive background tracking
Your location is captured as you move: always when you change location, and hourly at most otherwise, to spare battery and data. Runs with the app closed, and tells you if tracking ever stops.
Every country, counted
Not just the ones you remember to add. Every country you set foot in gets its own running day count, because any of them can matter.
Split travel days count everywhere
Helsinki → London → New York in one day is a counted day in all three, so nothing is missed. Many countries treat any part of a day as a day of presence, and where one counts arrival or departure days differently, DayTrace follows its convention.
Territory-accurate
Sint Maarten is not the Netherlands. Hong Kong is not China. Territories are tracked separately, including the ones that sit outside Schengen.
Counted the way you need
Over a calendar year, a tax year, a rolling 12 months or an unbroken stay. Choose how each country is counted to match the advice you have been given.
Your numbers, not ours
What matters depends on your status, ties and exemptions, which we cannot know. So you set the number of days for any country. We start you on a common default; you change it to whatever your advisor tells you.
A heads-up before your number
Notified at 30, 15 and 0 days to go, while you can still change a flight.
Plan trips before you book
Simulate a future trip and see how it would change your day counts before you book it. Optional Schengen 90/180 tracking can be switched on in Settings.
Advisor-ready exports
A formatted PDF travel summary with per-country totals plus every separate stay and its dates, and a full CSV day log, ready for your accountant.
Privacy-first architecture
Stored and processed in Frankfurt, encrypted in transit and at rest, never sold, never shared for advertising. Signup requires only email. No name, no passport, no government ID.
Manual override
Passport stamp? Border crossing? Layover? Mark transit days and fill gaps by hand, so the audit trail stays complete with or without perfect GPS.
The document your advisor actually wants
One tap produces a dated travel summary: per-country totals, every separate stay with its exact dates, and a confidence score for each country so nobody has to guess which parts of the record are solid. A full CSV day log comes with it.
- Every stay listed separately, so repeat visits never collapse into one row
- Data confidence per country, so gaps are visible instead of hidden
- Split travel days counted in each country, and the arithmetic explained on the page
- Carries its own disclaimer: a record of where you were, not a filing position
Travel Summary 2026
2026-01-01 to 2026-09-08 · generated September 8, 2026
| Country | Days | % yr | Stays | First – last seen | Conf. |
|---|---|---|---|---|---|
| Portugal PT | 149 | 41% | 3 | 2026-01-06 – 2026-08-22 | 98% |
| United Kingdom GB | 71 | 19% | 4 | 2026-01-02 – 2026-09-01 | 96% |
| Spain ES | 38 | 10% | 2 | 2026-03-11 – 2026-07-30 | 94% |
| United States US | 12 | 3% | 1 | 2026-05-04 – 2026-05-15 | 100% |
| Germany DE | 4 | 1% | 2 | 2026-02-19 – 2026-08-23 | 88% |
Each continuous run of days in one country. A break in the record also ends a stay, so consecutive rows for the same country mean the log has a gap.
| From | To | Country | Days |
|---|---|---|---|
| 2026-01-02 | 2026-01-05 | United Kingdom GB | 4 |
| 2026-01-06 | 2026-02-18 | Portugal PT | 44 |
| 2026-02-19 | 2026-02-19 | Germany DE | 1 |
| 2026-02-20 | 2026-03-10 | United Kingdom GB | 19 |
| 2026-03-11 | 2026-04-06 | Spain ES | 27 |
| 2026-04-07 | 2026-05-03 | Portugal PT | 27 |
Exported as PDF, with a full CSV day log alongside it.
One number is never the whole story
“183 days” is a myth as often as it's a rule. Windows differ, look-backs differ, and your own status can move the line dramatically. So DayTrace does the part that is the same for everyone, counting your days exactly, and leaves the number to you and your advisor.
- Every
- country counted
- Daily
- automatic, exact record
- 4
- ways to count a period
- Yours
- day limits, always
DayTrace counts your days. It does not decide your tax residency or give tax advice. Worked examples of how real rules differ are in our guides.
Simple pricing
One plan, every feature, for less than an hour of advisory time per year. Getting your residency wrong costs orders of magnitude more than getting it counted right.
or $129/year, saving 28%
- Full background tracking
- Automatic day count for every country
- Split travel days counted in each country
- Unlimited history
- Trip planner (what-if simulation)
- PDF travel summary & CSV export
- Optional Schengen 90/180 tracking
No card required to start · cancel anytime
Frequently asked questions
Everything you need to know before you start tracking.
How accurate is the day counting?
Location is captured as you move. A meaningful change in position, such as a border crossing or a landing, always records a ping, so even a short layover in a third country is caught; when you stay put, we settle to at most once an hour. Each day records where you were at midnight plus every country you passed through, so a travel day counts in each of them. Gaps are flagged rather than guessed, and you can correct any day by hand, which is exactly what advisors and auditors want to see.
Does it track me when I'm not using the app?
Yes, that's the point. Once enabled, background tracking runs silently without opening the app. Your phone's OS manages the battery impact, and DayTrace is designed to stay within iOS and Android background location budgets.
What happens if GPS is unavailable (e.g. airplane mode, tunnels)?
Missed pings are queued and retried on your next connection. Gaps are flagged in your log so you and your accountant can see exactly where the data is complete versus estimated.
Is my location data shared with anyone?
It is never sold, and never shared for advertising. Your data is stored and processed in Frankfurt, Germany, encrypted in transit and at rest. One exception worth naming: to turn GPS coordinates into a country we send them to a reverse-geocoding service, without anything else that identifies you. Beyond that and the providers that run the service (listed in our privacy policy), nothing leaves DayTrace unless you export it yourself. You choose when to generate a PDF or CSV and who to send it to.
What's the difference between the 183-day rule and the US Substantial Presence Test?
Many countries use a simple day count, and 183 days is a common line, though rules vary and other tests often apply as well. The US SPT is different: it is weighted across three years, with current year days counting fully, prior year days as 1/3 and two years ago as 1/6. So you can reach 183 weighted days even if you spent far fewer than 183 in the US this year. DayTrace counts the days; your advisor tells you which test applies to you.
Can I share my records with my accountant?
Yes. Export a formatted PDF travel summary or a full CSV of your day log, with per-country day counts, first and last dates, and data confidence. It is a record of where you were; your advisor decides what it means.
What if I only need tracking for a few months?
Choose monthly billing and cancel any time from your App Store settings. No lock-in, no cancellation fees. Or save 28% with the annual plan.
Does DayTrace replace a tax advisor?
No. DayTrace gives you the data: accurate counts, an audit trail and a clean export. Tax residency has legal consequences that depend on your full situation: treaties, ties, intent, and more. Always have a qualified advisor review before filing.
Will DayTrace tell me whether I'm a tax resident somewhere?
No, and that is deliberate. It tells you exactly how many days you spent where, and it lets you set a number to be warned about. Whether that makes you resident depends on circumstances only you and your advisor know. Take the export to them and decide together.
Still have questions? Read the guides or email us.