About Geostay
Geostay is a country days tracker for iPhone. It keeps a day-by-day record of which country you were in and reads that record against visa, residence and tax rules.
Who Geostay is for
Geostay is for people whose life is split across countries: a second home, a partner, remote work, expats, nomads and snowbirds. The worry is crossing a line by accident.
- A Schengen overstay, under the 90 days in any rolling 180-day period rule. For most visitors, day 91 is an overstay.
- UK tax residency, under the Statutory Residence Test.
- US tax residency, under the Substantial Presence Test, with its three-year weighting.
- A US state's own day count. Twenty-seven states have a tax card at that state's line, and New York City's card is 183 days.
- The 330-day test Americans abroad use to exclude foreign income: 330 full days abroad in 12 months.
A wrong day count can mean an overstay or an unexpected tax bill. Geostay counts each rule in that rule's own way. A 183-day line is a count of days in a year: spending more than 183 days in Spain in a year makes you a Spanish tax resident.
What Geostay counts
The rules above, plus a rule you define yourself: days in a place or days away, over a window you choose. Months are calendar months, and each rule counts a travel day its own way.
Visa rules cover 40 countries, and over 800 visas and residence statuses. The App Store listing names the Thai DTV, Spain's digital nomad visa, the UK Skilled Worker visa, EU settled status and the US green card. When you pick a status, Geostay adds the clocks that come with it: how long you can stay, how long you can be away before you risk losing it, and when you will have enough time for permanent residence.
Tax residency tests cover 184 countries, plus 27 US states and New York City. You can share a PDF of your counts and stays, a CSV day log, and a one-file backup of the record.
How each limit is checked
Every visa value carries its legal provision and a date it was checked. The app shows that official source and the checked date with the limit. A clock that cannot be stated exactly is left out. Geostay does not replace it with an approximation.
Official sources are checked every week. You see the updates that affect your visa, your rules, or a country you visited in the last 12 months. The iPhone decides which updates apply. The server receives the same download from every user, and it does not learn who you are.
Who makes Geostay
Mehmet Ali Kısacık is an independent developer in Istanbul, Turkey. Geostay is his iPhone app.
Getting started
Download Geostay from the App Store. If you allow location, the app records the country on the iPhone, including in the background, using map data stored in the app. You can also rebuild past trips from the dates and places in your photo library.
For support, email supportdayline@gmail.com.
Facts
- Product
- Geostay
- App Store name
- Country Days Tracker: Geostay
- Developer
- Mehmet Ali Kısacık
- Location
- Istanbul, Turkey
- Platform
- iPhone, iOS 18 or later
- Support
- supportdayline@gmail.com
- Website
- getgeostay.com
- App Store
- Country Days Tracker: Geostay
Questions
Who makes Geostay?
Mehmet Ali Kısacık, an independent developer in Istanbul, Turkey. The App Store developer page is linked on this site.
How is a visa limit kept correct?
Every visa value carries its legal provision and a date it was checked. The app shows that official source and the checked date with the limit. A clock that cannot be stated exactly is left out. Geostay does not replace it with an approximation. Official sources are checked every week, and the iPhone decides which updates apply to you.
How do I contact the developer?
Email supportdayline@gmail.com for support, feedback, or a privacy request. You can also send feedback from the app, on the Profile tab, from the feedback card.
Count each rule the way that rule counts days.
Geostay is a country days tracker for iPhone. The record stays on the phone.
Download on the App StoreQuestions? Email supportdayline@gmail.com.