StreckenProfi

StreckenProfi is your electronic driver's logbook (Fahrtenbuch) – built around the requirements of German tax law and designed for maximum privacy.

RECORD TRIPS
• GPS recording: start a trip and your kilometres are tracked automatically and accurately.
• Live Activity & Dynamic Island: keep the running trip and current distance in view.
• Manual entry for trips added later.
• Tax categories (R 8.1 LStR): Business, Private, Commute, Return home, Family home trip.
• Automatic return-trip suggestions and frequent destinations.

TAMPER-EVIDENT (§ 146 AO / GoBD)
• Gapless cryptographic audit chain (HMAC-SHA256) across all entries.
• Cancellations stay auditable – nothing is deleted without a trace.
• Weekly, monthly and yearly closings to seal reviewed periods.
• Late-entry and mileage-gap warnings keep your logbook compliant.

TAX & EXPORT
• 1% rule vs. logbook method – built-in comparison calculator (§ 6 EStG).
• Per-diem meal allowance (§ 9 Abs. 4a EStG).
• Export as PDF (A4), CSV, DATEV-compatible, JSON and GPX.
• Tax-audit mode: a read-only yearly view for the tax office.
• 10-year retention (§ 147 AO) with yearly archiving.
• Tax-advisor workflow with delivery reminders.

MORE THAN AN APP
• CarPlay: start and stop trips right from your car.
• Apple Watch: control recording from your wrist.
• Home Screen and Lock Screen widgets.
• Siri & Shortcuts for quick actions.
• Multiple vehicles with licence-plate and VIN management.

PRIVACY FIRST
• All data stays on your device; optional iCloud sync stays in your private, encrypted iCloud.
• No tracking, no ads, no sharing with third parties.
• App lock via Face ID / Touch ID.
• Encrypted backups (AES-GCM).
• JSON export contains addresses only – never raw GPS coordinates.

Available in German, English and Spanish.
Note: StreckenProfi helps you keep an orderly logbook but is not a substitute for tax advice. Acceptance in any individual case is at the discretion of the tax authority.