Links

Links is an iOS app for tracking days spent in each country for tax residency and travel reporting. It checks in a few times a day, turns each fix into a country and deletes the coordinates, then builds those check-ins into stays you can correct by hand. Limits like Schengen 90/180 and a country's residency threshold are counted live, each the way that rule counts, and a planner checks a trip against them before you book it. Stays sync across signed-in devices and export as CSV. No analytics, no advertising, no third-party trackers.

Built with
Expo
React Native
Firebase
TypeScript

Links app Today screen reading You're clear everywhere, with progress rings for the Schengen 90/180 limit and two country tax-residency limits showing days used and days in hand

More views

Links app timeline showing a year of colour-coded country stays by month, a September calendar, and this year's stays in Portugal, the United Kingdom, France, Germany and the Netherlands

Links app trip planner checking a 14-day trip to the United Kingdom and marking it safe to book, with each limit's days used and days in hand after the trip

Adding a stay by hand in the Links app, with a country picker, arrival and optional departure dates and a layover-only toggle

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