Calvo: Invoice from Calendar

Turn Google Calendar events into professional invoices in seconds
Calvo automates invoice creation for freelancers by extracting work logs directly from your Google Calendar events. No manual time tracking required - simply connect your calendar and let Calvo do the rest.

How It Works
Sync: Connect your Google Calendar in seconds
Extract: Calvo identifies your work events automatically
Generate: Creates professional invoice PDFs instantly
Send: Generates Gmail drafts with invoice attachments

Perfect For
- Freelancers and sole proprietors
- Consultants and contractors
- Software engineers and designers
- Anyone charging by time or hours
- Side hustle professionals with multiple clients

Key Features
Google Calendar Integration - Seamlessly sync with your existing calendar
Automatic Work Log Extraction - No manual entry needed
Japan Invoice System Compliant - Registration numbers and 10% tax calculation
Multi-Calendar Support - Connect multiple calendars and filter by keywords
Client Management - Set different hourly/daily rates per client
Gmail Integration - Auto-generate email drafts with attachments
PDF Generation - Professional Japanese-formatted invoices
Japanese Localization - Full support for postal codes and business practices

Why Calvo
Eliminates end-of-month billing burden. Stop manually checking calendars and calculating hours. Avoid Excel transcription errors. Stay compliant with Japan Invoice System requirements.
Deep Google Calendar Integration - Unlike traditional time-tracking apps requiring manual entry, Calvo reads your existing calendar events. Your workflow stays the same.
Japan-Specific Design - Built for Japanese business environment with complete Invoice System compliance and business document formatting.
End-to-End Automation - From calendar to sent invoice in seconds. No manual data entry or calculation errors.
Multi-Client Flexibility - Link specific calendars to specific clients, set different rates per client, and filter work logs by keywords.

Pricing
Free Plan - 2 invoices per month, 1 client, default calendar
Pro Plan 680 JPY per month - Unlimited invoices, unlimited clients, multiple calendars, no watermarks, 12-month statistics and CSV export, priority support

Get Started Today
Download Calvo and turn your calendar into invoices in seconds. Save 1.5-2.5 hours every month and focus on what matters most - your work.