Frequently Asked Questions

An Android app that turns your calendar into a data source for invoices. Built specifically for psychologists, therapists and healthcare practitioners. No second system, no learning curve — just use your existing calendar.

For solo healthcare practitioners: clinical psychologists, psychotherapists, private practice psychologists and physicians. Anyone who has appointments in their calendar and wants to create invoices from them.

No. If you can use WhatsApp, you can use TimeInvoicer. The app guides you step by step through the entire process — from calendar permissions to your finished invoice.

Yes, fully offline. Create invoices, record services, generate PDFs — all without an internet connection. Only the optional AI features (Pro version) require an active connection.

Any calendar registered in the Android system: Google Calendar, Samsung Calendar, Outlook, CalDAV-based calendars and local calendars. TimeInvoicer reads the system calendar — no matter which app is behind it.

No — and that is the key difference from other solutions. TimeInvoicer reads your existing calendar appointments directly. Tap an appointment, assign a service, invoice done. No double data entry.

Your calendar data is read exclusively on your device. No appointments, client names or other data is ever transmitted to a server. Your data stays on your device.

The Basic version is free forever — unlimited invoices, calendar integration, 3 templates, PDF export. The Pro version with AI features starts at €19/month, the Practice version with advanced functionality at €49/month.

Beta testers get 6 months of Pro for free — with all premium features. The Basic version is always free regardless. Try TimeInvoicer completely risk-free.

Yes, anytime via the Google Play Store. No fine print, no minimum term, no cancellation deadlines. You keep the Basic version even after cancelling.

Yes. All data stays locally on your device, encrypted with AES-256. No tracking, no ads, no analytics. TimeInvoicer was built from the ground up with a "Privacy by Design" approach.

Yes. Since all data is stored exclusively on your device with no cloud upload, the app is fully GDPR compliant. There is no data transfer to third parties.

During normal operation: nothing. Only when you use the optional AI features (Pro) are anonymized service descriptions sent for processing — without client names, without personal data.

All major Austrian insurance carriers — with a total of 24 billing codes. Rates are regularly updated so you always work with the current figures.

Yes, TimeInvoicer supports export in WAH-XML format for electronic billing with insurance carriers. A direct integration is also in the works.

Yes, both variants: invoices with VAT and invoices without VAT (with a note referencing the small business tax exemption).

An iOS version is planned for 2027. Currently, TimeInvoicer is available exclusively for Android. If you are interested in the iOS version, sign up as a beta tester — we will let you know as soon as it is ready.

A web dashboard for desktop overview is planned for Q3 2026. The core features (invoice creation, calendar integration) remain on your smartphone — where your appointments are.

Yes. TimeInvoicer offers full data export: backup as a file (for device changes or safekeeping) and all invoices as PDF. No vendor lock-in — your data belongs to you.