Zettelwirtschaft
LumeSec Technologies GmbH
Zettelwirtschaft is a document management system for freelancers and small businesses in Austria and Germany. Scan receipts, keep a logbook, submit expense reports... and at the end of the quarter, you receive a package that your accounting firm can easily process.
No account, no registration, no cloud synchronization.
Zettelwirtschaft is a document management solution for freelancers and small businesses in Austria and Germany. Scan receipts, keep a logbook, submit expenses... and at the end of the quarter, you receive a package that your accounting firm can easily process.
No account, no registration, no cloud synchronization.
... RECEIPTS
• Scan with automatic edge detection... crop, then choose the look
• Multi-page receipts: till rolls, two-sided invoices
• Amounts, date, merchant, and VAT rates are extracted
• Even without a camera: tap, select from photos, or share from another app
• Entertainment receipts with occasion and attendees
LOGBOOK
• Start and end trip, tap or photograph mileage
• Starting and ending location, purpose, business partner
• Check for gaps, double entries, and missing mandatory information
• Business-related portion, calculated continuously
• Export as a table, report, or ZIP file with all odometer photos
TRAVEL
• Per diems according to Austrian and German law, calculated daily
• One-twelfth rule (AT) and three-tier rule (DE), calculated visibly
• Reduced by provided meals
• Accommodation allowance, mileage allowance, assigned receipts
• Trip report as PDF
EXPORT
• DATEV, RZL, and BMD for the office
• CSV for Everything else
• Documents and logbook can be exported separately
• Encrypted backup as a file
ON THE HOME SCREEN
• Widgets for scanning, documents, trips, and journeys
• Quarterly overview as a widget
• Contact the firm as a widget
• Notification while a trip or journey is in progress
YOUR DATA
The database is encrypted on the device. Backups are encrypted with your password—even we couldn't open them. There is no account because there is no server on which one could reside.
Two functions can establish a connection—if you explicitly allow it: the renewal of a firm license and the location search in the logbook. Both are disabled by default, both explain in detail beforehand what data will be sent, and both continue to function without this permission.
FREE TRIAL
Five scans to try it out, one-time only. Everything else—logbook, journeys, export—can be used without limitations. Pro is available as a subscription or as a one-time purchase. If you work with a tax firm, they can also activate Pro directly for you.
NOTE
The app calculates and freezes the rates applicable to each receipt date. For trips outside of Austria and Germany, the app prompts for the daily rate instead of inventing one.
This is not tax advice. Information provided without guarantee.
Location data © OpenStreetMap contributors (ODbL).
No account, no registration, no cloud synchronization.
Zettelwirtschaft is a document management solution for freelancers and small businesses in Austria and Germany. Scan receipts, keep a logbook, submit expenses... and at the end of the quarter, you receive a package that your accounting firm can easily process.
No account, no registration, no cloud synchronization.
... RECEIPTS
• Scan with automatic edge detection... crop, then choose the look
• Multi-page receipts: till rolls, two-sided invoices
• Amounts, date, merchant, and VAT rates are extracted
• Even without a camera: tap, select from photos, or share from another app
• Entertainment receipts with occasion and attendees
LOGBOOK
• Start and end trip, tap or photograph mileage
• Starting and ending location, purpose, business partner
• Check for gaps, double entries, and missing mandatory information
• Business-related portion, calculated continuously
• Export as a table, report, or ZIP file with all odometer photos
TRAVEL
• Per diems according to Austrian and German law, calculated daily
• One-twelfth rule (AT) and three-tier rule (DE), calculated visibly
• Reduced by provided meals
• Accommodation allowance, mileage allowance, assigned receipts
• Trip report as PDF
EXPORT
• DATEV, RZL, and BMD for the office
• CSV for Everything else
• Documents and logbook can be exported separately
• Encrypted backup as a file
ON THE HOME SCREEN
• Widgets for scanning, documents, trips, and journeys
• Quarterly overview as a widget
• Contact the firm as a widget
• Notification while a trip or journey is in progress
YOUR DATA
The database is encrypted on the device. Backups are encrypted with your password—even we couldn't open them. There is no account because there is no server on which one could reside.
Two functions can establish a connection—if you explicitly allow it: the renewal of a firm license and the location search in the logbook. Both are disabled by default, both explain in detail beforehand what data will be sent, and both continue to function without this permission.
FREE TRIAL
Five scans to try it out, one-time only. Everything else—logbook, journeys, export—can be used without limitations. Pro is available as a subscription or as a one-time purchase. If you work with a tax firm, they can also activate Pro directly for you.
NOTE
The app calculates and freezes the rates applicable to each receipt date. For trips outside of Austria and Germany, the app prompts for the daily rate instead of inventing one.
This is not tax advice. Information provided without guarantee.
Location data © OpenStreetMap contributors (ODbL).
Developer email
hello@lumesec.ai
Developer website
https://zettelwirtschaft.dev/Released
Aug 17, 2026
Current version
1.3.0
Android version
8.0
Screenshots
