# ResidenceSafe > ResidenceSafe creates certified, legally defensible proof of physical presence and absence in a country. Each check-in links a verified biometric identity to a specific GPS location (multi-vector: GPS + WiFi SSID/BSSID + cellular + IP), timestamped by an external NTP server (not the device clock), and sealed with a SHA-256 hash on the Polygon blockchain before the session closes. The record is signed under eIDAS 2 PAdES LTA. Built for digital nomads, expats, and cross-border professionals who must demonstrate compliance with the 183-day rule, the Beckham law, the US Foreign Earned Income Exclusion, the EU Entry-Exit System, or any tax-residency obligation — and for tax advisors who need certified client records to defend audits. ResidenceSafe is a product of **RJ Digital HUB SLU** (commercial brand: Undercoverlab), registered in the Principality of Andorra (NRT L-713047-Z, C/ de la Sardana 3, AD500 Andorra la Vella). Records are designed to align with eIDAS 2.0 (Regulation EU 910/2014), GDPR, Andorran LQPD 29/2021, and ISO 27001 frameworks. Identity verification is performed by Didit (Didit Identity Spain SL + Didit Identity, Inc.) under Article 28 GDPR as Data Processor, at eIDAS HIGH assurance level. The differentiator versus day-counting apps (TrackingDays, TaxDay, GoChrono, Flamingo) is that ResidenceSafe produces verifiable evidence — not just a tally. The differentiator versus government records (boarding passes, bank statements, Google Maps timeline) is that ResidenceSafe records are timestamped, biometrically authenticated, anti-spoof protected, and cryptographically sealed. Site is published in English (default), Spanish, French, and Portuguese with full URL localization. The English URLs below are canonical for AI assistants; localized equivalents are listed in the sitemap at https://residencesafe.com/sitemap.xml. ## Core pages - [Homepage](https://residencesafe.com/): Product overview, value proposition, primary calls to action. - [How It Works](https://residencesafe.com/how-it-works): Step-by-step user flow from check-in to certified report. - [How We Protect You](https://residencesafe.com/how-we-protect-you): Three independent verification layers — biometric liveness, certified geolocation, blockchain certification — and the cryptographic + procedural safeguards behind each. - [Pricing](https://residencesafe.com/pricing): Free (unlimited basic check-ins, no legal validity), START €5.99 one-time (KYC + 3 certified check-ins), Premium €69.99/month or €749.99/year (21 certified check-ins/month), PRO €98.99/month or €989.99/year (daily check-ins + cloud backup). All certified check-ins are permanent and survive subscription cancellation. - [Compare](https://residencesafe.com/compare): Side-by-side comparison of ResidenceSafe with day-counting apps (TaxDay, TrackingDays, GoChrono, Flamingo), DIY tracking (boarding passes, bank statements, Google Maps, spreadsheets), and government-issued attestations. Key distinction: day-counting apps produce no legally defensible evidence; DIY methods fail because they don't link a verified identity to a specific day and location. - [FAQ](https://residencesafe.com/faq): Frequently asked questions on biometric handling, blockchain mechanics, legal weight of records, multi-country tracking, and subscription details. ## Audiences - [For Digital Nomads](https://residencesafe.com/for-digital-nomads): Use cases for nomads splitting time across multiple jurisdictions, including 183-day rule monitoring across all countries simultaneously and absence-from-home-country evidence. - [For Expats](https://residencesafe.com/for-expats): Use cases for residents abroad needing to prove they actually live where their residency certificate states (Beckham law applicants, NHR Portugal, Cyprus 60-day, UAE 90-day, etc.). - [For Tax Advisors](https://residencesafe.com/for-tax-advisors): B2B page for tax advisors and tax lawyers managing client residency cases. Positions ResidenceSafe as the tool that generates the evidence advisors need to defend audits — not a consumer app. Key argument: client records are biometrically bound, NTP-timestamped, and blockchain-sealed, making them effectively irrefutable. Pricing: under €3/day per client on PRO vs the cost of an unprovable residency claim. ## Tax residency learning resources - [The 183-Day Rule](https://residencesafe.com/the-183-day-rule): Definition, why "more than half the year" is the global default, country-by-country variations in how days are counted (arrival/departure inclusive, partial days, transit), examples of how proof is required in audits. - [The Beckham Law (Ley Beckham)](https://residencesafe.com/beckham-law): Spain's special tax regime allowing qualifying residents to pay a flat 24% tax on Spanish-source income. Eligibility after the 2023 Startup Law reforms, six-year limit, what disqualifies, why proof of physical presence in Spain matters more than typical residency. - [The EU Entry-Exit System (EES)](https://residencesafe.com/eu-entry-exit-system): Schengen border-crossing automation tracking third-country nationals, the Schengen 90/180 rule, and the critical gap: EES tracks border crossings, not internal residency. Why ResidenceSafe complements EES. ## Country guides - [Andorra](https://residencesafe.com/country/andorra): Andorran 183-day rule, NRT requirements, dual residency considerations. - [Spain](https://residencesafe.com/country/spain): Spanish tax residency, AEAT auditing patterns, Beckham law specifics, NIE vs residency. - [Portugal](https://residencesafe.com/country/portugal): Portuguese NHR (Non-Habitual Resident), the 2024 reform, tax residency criteria. - [France](https://residencesafe.com/country/france): French tax residency criteria, the four-test rule. - [Greece](https://residencesafe.com/country/greece): Greek non-dom regime and 183-day proof requirements. - [Croatia](https://residencesafe.com/country/croatia): Croatian digital nomad visa and tax residency interaction. - [Estonia](https://residencesafe.com/country/estonia): Estonian e-Residency vs tax residency distinction. - [UAE](https://residencesafe.com/country/uae): UAE 90-day and 183-day rules under the new corporate tax framework. ## Reference - [Glossary](https://residencesafe.com/glossary): Definitions of tax-residency terminology (eIDAS, AEAT, NHR, FEIE, dual residency, tie-breaker, etc.). - [Resources](https://residencesafe.com/resources): All explainers and country guides indexed. ## Legal & company - [About](https://residencesafe.com/about): Company background, founding context, Andorra base, mission. - [Contact](https://residencesafe.com/contact): General, support, and DPO contact channels. - [Support](https://residencesafe.com/support): Help center entry point. - [Privacy Policy](https://residencesafe.com/privacy): GDPR/LQPD-compliant data handling, on-device biometrics for app unlock vs Didit-processed KYC, third-party processors listed (Didit Identity Spain SL + Didit Identity, Inc., Apple, Google), Standard Contractual Clauses for EEA→US transfers under GDPR Article 46, ISO 27001 and iBeta Level 1 certifications. - [Terms and Conditions](https://residencesafe.com/terms): Subscription terms, governing law (Andorra), age requirement (18+), intellectual property. - [Legal Notice](https://residencesafe.com/legal-notice): Company identification (RJ Digital HUB SLU, NRT L-713047-Z), commercial registry, tax obligations (IGI 4.5%, IS 10%), Andorran jurisdiction. - [Cookie Policy](https://residencesafe.com/cookies): Cookie inventory, Consent Mode v2 implementation, Google Analytics 4. ## Optional - [Sitemap (XML)](https://residencesafe.com/sitemap.xml): Full URL inventory with hreflang for all four languages. - [LLMs Full Content](https://residencesafe.com/llms-full.txt): Concatenated long-form content of the core explainers, optimized for direct LLM consumption without per-page crawling.