The day counter for tax residency
If your tax residency depends on day counts, guessing is expensive. DayTally keeps the record you would otherwise have to reconstruct from boarding passes and hotel bills — and turns it into a finished PDF you can hand to your tax advisor.
The iPhone version is coming soon to the App Store.
A year of country entries Every square is one day, coloured by country.
Provably private
On Android, DayTally ships without the INTERNET permission; on iPhone, it contains no networking code. This is not a promise not to send your data anywhere; it is an app that is technically incapable of sending it. There is no account, no sign-up, no analytics, no advertising and no tracking. Your entries live in the app's private storage on your device and leave it only in backups and exports you make yourself — on iPhone, also in your iPhone's own backup.
On Android you can verify this yourself: the permission list on the Google Play listing has no network entry, and Android will not grant one at runtime that was never declared.
On Android the permission is declared nowhere in the manifest, and the operating system enforces that. The iPhone app contains no networking code at all. Neither rests on our good intentions.
Nothing to sign up for, nothing to sign in to, nothing to delete later.
Backups are files you create yourself, encrypted with AES-256-GCM and your own passphrase. There is no recovery without it, and we hold no key.
No cookies, no analytics, no third-party requests. Fonts and every asset are served from this domain.
Tax advisors & tax authorities
Day counts are easy to lose and hard to rebuild. DayTally keeps them as you go, so the handover at the end of the year is a file rather than a weekend.
Count by presence or by midnight, over a calendar year, rolling 12 months or a sliding window. Researched day limits for many countries come with their source noted. The US Substantial Presence Test is computed with its exact weighting, including the 31-day gate.
Every country entry carries its own evidence: boarding passes, hotel bills, tickets and documents, attached to the entry they belong to instead of scattered across a folder.
The report checks your own record for holes and overlaps before anyone else does, and tells you which dates need attention.
A clean report with your country entries, flights and numbered appendices — plus a tax-advisor package: one ZIP holding the report, every table and each appendix under its number, with an index.
DayTally documents — the tax assessment belongs to professionals. The app is a record-keeping tool, not tax advice. Rules change and depend on your circumstances; when in doubt, ask a professional.
The handover
Not a screenshot of a spreadsheet — a generated PDF with your country entries, the day totals per country and numbered appendices for every receipt. This is a real export from the data you see in the screenshots on this page.
Generated on the device from the same demo record used throughout this page. Pro unlocks the PDF report and the tax-advisor ZIP.
From a day to a proof
Add a country entry, or let a scanned boarding pass fill it in. It takes seconds and it happens once.
The hotel bill, the ticket, the boarding pass — attached to the entry it belongs to, not to a folder you will have to search later.
One PDF with the totals, the entries and the numbered appendices. Or the ZIP with every table alongside it.
Get occasional news about new versions and useful DayTally features.
What it does
Every day carries the flag of the country you were in — here, a month in the Emirates with a four-day trip to Germany on the 5th to the 9th. A plane marks the day you flew, a small house the nights you had a place booked, and the amber ring is today.
Flights, country entries and accommodations in one chronological list: EK 45 Dubai to Frankfurt, five days in Germany, the flight back. Scan a boarding pass from a photo, an image file or a PDF and the airports, flight number and date fill themselves in — the barcode is read on your device, and Pro scans a whole stack at once. At the top, the October trip to Singapore sits in the record before it happens, marked planned and kept out of the numbers that describe the past.
Set the rule a country measures by — presence or midnight, calendar year, rolling 12 months or a sliding window — and the limit that matters to you. The map shows where you have been; on Android, visas sit alongside with their remaining time, here a residence visa with 288 days left.
A PDF with your country entries, flights and numbered appendices, plus — on Android — the audit report that checks your own record for gaps and overlaps first. CSV exports for countries, days, trips and accommodations. All generated on the device.
229 tracked days, 32,476 km flown, five countries, a world map with the flight paths drawn on it — plus the year carpet, a calendar heatmap and the home-and-away split. Every card shares as an image. On iPhone, the overview shows the world map with your flight paths.
Backups are files you create yourself, encrypted with AES-256-GCM and your own passphrase — put one in your own cloud folder and it stays useful only to you. On Android, you can also lock the app behind your device biometrics.
German, English, French, Spanish, Italian, Portuguese (Brazil), Dutch, Polish, Russian, Turkish, Arabic and Simplified Chinese. Arabic is laid out right-to-left throughout, not just translated.
Why not a spreadsheet?
No spreadsheet is being insulted here — one is a perfectly good way to start. It just stops scaling at exactly the point where the numbers begin to matter.
In motion
Recorded on a device, not mocked up: an entry added, the calendar filling, a boarding pass scanned, the statistics, and the report coming out the other end.
Free and Pro
The counting, the calendar, the timeline, one country rule with warnings, CSV import and export and manual backup are free forever — on Android, so are the audit report and the app lock.
Forever, with no account.
7-day free trial on the yearly plan. Cancel any time in Google Play or in your App Store subscription settings.
| Feature | Free | Pro |
|---|---|---|
| Unlimited country entries, calendar and timeline | ✓ Included | ✓ Included |
| Boarding-pass scan (one at a time) | ✓ Included | ✓ Included |
| Country rule with warnings | One country | Every country |
| Audit report (Android) | ✓ Included | ✓ Included |
| CSV import and export | ✓ Included | ✓ Included |
| Manual backup and restore; app lock (Android) | ✓ Included | ✓ Included |
| PDF report incl. tax-advisor package | — Not included | ✓ Included |
| Full statistics with every insight (Android) | — Not included | ✓ Included |
| Travel-year story and year comparison (Android) | — Not included | ✓ Included |
| Batch scanning and new attachments | — Not included | ✓ Included |
| Google Timeline import (Android) | — Not included | ✓ Included |
| Automatic backups and the home-screen widget (Android) | — Not included | ✓ Included |
Prices are shown in euros and may vary by region and local tax. Google Play or the App Store charges the price displayed to you at purchase.
Questions
Yes. On Android the app ships without the INTERNET permission, and the iPhone app contains no networking code, so neither can reach a network on its own. Everything — counting, scanning, reports, maps — happens on your device.
Only you. There is no account and no server. Your entries live in the app's private storage, which other apps cannot read. They leave the device only in a backup or an export that you create yourself — and, on iPhone, in your iPhone's own backup.
Without a backup, the data is gone — that is the honest consequence of holding no copy of it. Create an encrypted backup and keep it somewhere you control; restoring it on a new device brings everything back.
Please do not. Backups are encrypted with AES-256-GCM using your passphrase, and we hold no key. There is no recovery path, by design.
They are marked as planned, kept apart from what actually happened, and shown as a forecast so you can see what a trip would do to a count before you book it.
No, and it does not try to. DayTally documents your days and hands you a clean report; the assessment of what those days mean for your tax situation belongs to a professional. You can see exactly what that report looks like further up this page. Report
4,99 € per month, 29,99 € per year, or 79,99 € once for lifetime access, with a 7-day free trial on the yearly plan. You buy Pro in the store you installed the app from, and it unlocks the app on that platform only. You can cancel at any time: on Android in Google Play, on iPhone under Settings › your name › Subscriptions.
Through the store you paid in, under its refund policy: Google Play on Android, Apple at reportaproblem.apple.com on iPhone. We never see your payment details, so the store is both the fastest and the only route.
Twelve: German, English, French, Spanish, Italian, Portuguese (Brazil), Dutch, Polish, Russian, Turkish, Arabic and Simplified Chinese.
It is coming soon to the App Store. We are not promising a date, because a date we might miss is worth less than none. The first iPhone version brings the counting, the calendar and timeline, country rules with warnings, the boarding-pass scan, the PDF report with the tax-advisor package, CSV and encrypted backups. Statistics, the widget, automatic backups, the app lock, the audit report, visas, automatic country detection, the Google Timeline import and the travel-year story are on Android only.
Always. CSV exports for countries, days, trips and accommodations, plus the PDF report and the tax-advisor ZIP. It is your record, in formats you can open without us.
On Android, only if you switch on automatic country detection, and only coarsely. It is resolved on the device against bundled map data — nothing is looked up online, because nothing can be. The iPhone app does not use your location at all.
Contact
Write to us, whether you use DayTally on Android or on iPhone. A person reads it.