Turn your Google Calendar into your invoicing system
Register with Syncnamatic, connect your Google account, and keep using Google Calendar for bookings. Add Syncnamatic as a guest on each appointment — your invoice is created, sent, and recorded without a separate billing app.
✨ Simple setup • No credit card required
Why Choose Syncnamatic?
Built for Google Calendar
Syncnamatic integrates with Google Calendar. Use Google for your appointments.
Invoices from invites
When Syncnamatic is added as a guest on a booking, an automation creates an invoice using details from the calendar invite.
Edit in the description
Change invoice details in the Google Calendar event description before or when you send the invite — no separate invoicing interface required.
One place to review
Sent invoices are recorded in Syncnamatic so you can view, track, and consolidate your billing in a simple dashboard.
Client reminders
Clients are emailed automatically about upcoming bookings — 24 hours before the session, using the client email in the calendar event title.
How It Works
Connect Google Calendar, add Syncnamatic to your invites, and invoices are created automatically. Clients also get an email reminder 24 hours before each session.
Connect Google Calendar
Register and link your Google account. Syncnamatic integrates with Google Calendar.
Add Syncnamatic as a guest
When you create a booking, add the Syncnamatic guest email to the invite.
Put details in the description
Customer and invoice line items go in the event description. Edit them there — no separate invoicing app.
Invoices sent & clients reminded
Syncnamatic generates and sends the invoice, saves it in your dashboard, and emails the client a reminder 24 hours before the booking (to the email in the event title).
Frequently Asked Questions
Google Calendar invoicing for therapists, consultants, and solo practices — common questions answered.
- Do I need a separate invoicing app?
- No. Syncnamatic works inside Google Calendar. Book clients as you already do, add Syncnamatic as a guest on the invite, and send the invoice from the event — no separate billing software required.
- How does Syncnamatic work with Google Calendar?
- Connect your Google account once, then add Syncnamatic as a guest when you create an appointment. Syncnamatic reads the event details, generates the invoice, and adds a send-invoice link in the event description.
- Is Syncnamatic free?
- Yes — you can get started on the free plan with no credit card required. Pro adds higher limits and optional WhatsApp client reminders. See our pricing page for details.
- Who is Syncnamatic for?
- Solo professionals and small practices who book clients in Google Calendar — including therapists, psychologists, consultants, coaches, and similar service providers.
- Do clients get appointment reminders?
- Yes. When the client's email is in the calendar event title, Syncnamatic sends an automatic email reminder 24 hours before the session. You can deactivate email reminders in Settings if needed.
Ready to simplify your invoicing?
Connect Google Calendar, add Syncnamatic to your invites, and let automation handle the rest.
Get started for freeSimple setup • No credit card required