From selfie to certified proof in under 30 seconds.
This is what happens every time you open the app. Open, selfie, done — and a record exists that holds up.
The flow
Five steps, and your defense builds itself
Set up once. After that it's a selfie a day — every check-in is verified, sealed, and ready to export the moment you need it.
- 01
Create your account
Download the app and verify your identity once with a passport, ID card, or driver's license. Two minutes, done forever. This is what ties every future check-in to you specifically, not just to your phone — and what gives your records legal weight from day one.
- 02
Daily check-in
Open the app, take a selfie. That's the whole thing — thirty seconds and you're done. Behind that selfie: your face is verified as live, your location is cross-referenced from multiple sources, and the timestamp comes from external servers your phone can't touch. All locked together before you close the app.
- 03
Automatic record creation
You don't do anything. The record is created and sealed the moment the check-in completes. It goes onto a public blockchain ledger we don't control and can't modify — so if we disappeared tomorrow, every record you've created would still be there and still verifiable by anyone who needs to check.
- 04
Monthly reports
Every month you get a report showing where you've been and how many days you spent in each country. No counting, no spreadsheet. It comes as a PDF and CSV, ready to hand to a tax advisor, an immigration officer, or a lawyer — each record carries its blockchain reference so anyone can verify it independently. Check country-specific requirements to see what authorities typically ask for.
- 05
Use when you need it
A tax authority questions your residency. An immigration process asks for proof of presence. You export your records and hand them over. That's it. Most people build this record for years before they ever need it — but the ones who need it and don't have it end up in a residency dispute with nothing to show.
Under the hood
You don't need to understand it. But if you're wondering:
Each layer has one job — making your records legally unassailable.
- Who
Biometric verification
Your face is your password. Liveness detection ensures it's really you, not a photo or a deepfake. Your biometric profile is stored by Didit, our identity partner, but never linked to your personal data — Didit verifies that you are you, with no way to know who you are.
- Where
Certified geolocation
Location is verified at the moment of check-in using GPS, Wi-Fi positioning, cell tower data, and IP geolocation cross-referenced together. The timestamp comes from external NTP servers, not your device clock. No single signal can be spoofed, no retroactive modifications, no manual entry.
- Sealed
Blockchain certification
Each record is hashed with SHA-256 and written to the Polygon public ledger before the session closes. Anyone with the transaction hash can verify it without going through us. Once sealed, it cannot be altered or deleted by anyone — including us.
- Proof
eIDAS 2 & GDPR compliance
All records and reports comply with eIDAS 2 (the EU's highest standard for electronic identification) and GDPR. They're designed to be submitted as supporting evidence to EU authorities and courts; final admissibility depends on the jurisdiction.
One selfie a day. Your entire defense, built automatically.
Download free, try the full flow. Upgrade to Premium when you need records designed to withstand a tax-authority challenge.
