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, automatic suggestions, voice input — everything works without an internet connection. No online dependency.

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.

Starter is free with unlimited invoices, up to 10 clients, calendar integration and PDF export. Plus starts at 9.90 €/month (intro price, was 14.90 €) with unlimited invoices, up to 50 clients, templates, and more. Practice Premium at 19.90 €/month (intro price, was 24.90 €) adds automatic invoice creation, custom document templates with placeholders for contact, appointment, and report information, and priority support. Founder’s price: Practice Premium for 99 € for the first year (first 100 users).

You can install TimeInvoicer for free. You can test in the app for 14 days — without a payment method at app start. Later subscriptions are handled securely by Google Play.

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. All features work fully offline on your device. No client data ever leaves your phone.

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).

Yes. TimeInvoicer is on the App Store for iPhone and iPad and on Google Play for phone and tablet. For taking notes during sessions, we recommend an iPad or a tablet with a large screen.

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.