# Residency > Residency is an iPhone app that builds your travel history from your photos and counts your days against visa, tax residency and citizenship rules, with alerts before you cross a line. Residency is an app for iPhone. App Store name: Visa Tracker: Residency. App Store id 6749048224: https://apps.apple.com/app/id6749048224. This website is its official site. Publisher: Drobinin Limited. Support: support@residencyrules.com. ## What it does - Builds a trip history from the photo library, filtering out layovers and in-flight photos. - Counts Schengen and other visa days and shows days left, exit dates and return dates. - Tracks tax residency thresholds and tests such as the IRS substantial presence test, toward becoming resident or staying non-resident. - Tracks physical presence for citizenship and Green Card holders. - Shows how a planned trip affects visa days, tax thresholds and citizenship timelines before booking. - Stores passports, permits and visas with expiry alerts. - Exports travel history as PDF, CSV or JSON. - Processes everything on the device, with no account. ## Pages - [Home](https://residencyrules.com/) - [Best passport](https://residencyrules.com/best-passport/): Dual citizen? See which passport gets you longer. - [Substantial presence test](https://residencyrules.com/substantial-presence-test/): Work out the IRS weighted day count. - [Schengen calculator](https://residencyrules.com/schengen-calculator/): Count your 90/180 days across several trips. - [Visas](https://residencyrules.com/visa-days/): Stay inside Schengen and visitor visa limits. - [Tax residency](https://residencyrules.com/tax-residency/): Become resident, or stay non-resident, on purpose. - [Citizenship](https://residencyrules.com/citizenship/): Physical presence toward citizenship or permanent residence. - [Plan a trip](https://residencyrules.com/plan-a-trip/): See what a trip does to your limits before you book. - [Trip history](https://residencyrules.com/trip-history/): Every country visit, rebuilt from your photos. - [Documents](https://residencyrules.com/documents/): Passports, permits and visas with expiry alerts. - [Visa-free stays by passport](https://residencyrules.com/visa/): How long you can stay, by passport and destination. - [US passport: visa-free stays](https://residencyrules.com/visa/us/) - [British passport: visa-free stays](https://residencyrules.com/visa/british/) - [German passport: visa-free stays](https://residencyrules.com/visa/german/) - [Canadian passport: visa-free stays](https://residencyrules.com/visa/canadian/) - [Australian passport: visa-free stays](https://residencyrules.com/visa/australian/) - [New Zealand passport: visa-free stays](https://residencyrules.com/visa/new-zealand/) - [Japanese passport: visa-free stays](https://residencyrules.com/visa/japanese/) - [Russian passport: visa-free stays](https://residencyrules.com/visa/russian/) - [Questions](https://residencyrules.com/faq/) - [Residency in Español](https://residencyrules.com/es/) - [Residency in Français](https://residencyrules.com/fr/) - [Residency in Deutsch](https://residencyrules.com/de/) - [Residency in Русский](https://residencyrules.com/ru/) - [Residency in Українська](https://residencyrules.com/uk/) - [Residency in 繁體中文](https://residencyrules.com/zh-hant/) - [Residency in العربية](https://residencyrules.com/ar/) ## Questions and answers Q: What is Residency? A: Residency is an iPhone app that builds your travel history from your photos and counts your days against visa, tax residency and citizenship rules. It warns you before you cross a line. Q: Does it count Schengen days? A: Yes. It counts stays under the Schengen 90/180 rule across the rolling 180-day window and shows the days you have left, when you must leave and when you can return. Q: Does it track tax residency? A: Yes, in either direction: toward becoming resident or toward staying non-resident. It tracks day-count thresholds and tests such as the IRS substantial presence test, and alerts you before you cross one. Q: Does it help with citizenship or permanent residence? A: Yes. It tracks physical presence toward naturalisation and for Green Card holders, and shows how each trip affects the timeline. Q: Can it detect trips I have already taken? A: Yes. You can import your trips from the Photos library automatically. Q: Is my data private? A: Yes. Every photo scan, day count and document is processed on your device. There is no account, and nothing is uploaded to us. Q: Is Residency legal or tax advice? A: No. Residency counts days against the rules you choose. Check decisions with an immigration or tax adviser. Q: What does it cost? A: Residency needs a subscription to unlock all features. Weekly and annual plans are available, and a free trial may be available.