How It Works

From inbox chaos
to calendar clarity.

Six precise steps that turn fragmented confirmation emails into one organized, trustworthy schedule. No manual work. No missed events.

Join the Waitlist
1
Connect

Connect your inbox securely.

Calzine uses Google OAuth — you never share your password. Connect Gmail, choose your destination Google Calendar, and you're ready. Revoke access anytime from your Google account settings.

  • Google OAuth — no password sharing
  • Choose which Google Calendar to sync into
  • Scoped access — only reads what's needed
  • Revoke access anytime from Google settings
Gmail connection
📧
Calzine wants to access your Gmail
Calzine will only read emails that appear to contain event confirmations, bookings, or registrations.
🔍Read event-related emails
📅Write to Google Calendar
✉️Read personal correspondence
2
Detect

Detect event emails automatically.

Calzine monitors your inbox and identifies emails containing event-related content — confirmations, registrations, tickets, reminders, cancellations — regardless of format or platform.

  • Confirmations and registration emails
  • Webinar and video call invites
  • Tickets from Eventbrite, Meetup, and more
  • Travel and appointment bookings
  • Cancellation and reschedule notices
Detected in inbox — last 24 hours
Zoom
Your meeting "Q4 Review" is confirmed
Confirmed
Eventbrite
Your ticket for Design Summit Chicago
Ticket
Calendly
New booking: Strategy call w/ Marcus
Booking
Delta Airlines
Flight confirmation ORD → SFO
Travel
Eventbrite
Event cancelled: UX Meetup April 3rd
Cancelled
3
Extract

Extract every important detail.

AI reads the email and pulls out every piece of information you'd need to add this event to your calendar manually — title, date, time, timezone, location, join link, organizer, and confirmation number.

  • Event title (cleaned and normalized)
  • Date, time, and timezone
  • Physical location or virtual venue
  • Join link and passcode (Zoom, Teams, Webex)
  • Organizer name and confirmation number
Raw email → Extracted event
Hi Sarah, your booking for UX Strategy Workshop is confirmed. Date: Tue, March 25, 2025 · Time: 10:00 AM–1:00 PM CST · Location: WeWork, Chicago
↓ AI extraction
Title
UX Strategy Workshop
Date
Tue, March 25, 2025
Time
10:00 AM CST
Location
WeWork, N Dearborn
Duration
3 hours
Confidence
94% High
4
Normalize & Deduplicate

Clean, structure, and remove duplicates.

Messy email data becomes structured, calendar-ready events. Titles cleaned, times normalized to your timezone, and duplicate entries from multiple confirmation emails detected and suppressed.

  • Titles cleaned and standardized
  • All times converted to your timezone
  • Duplicate records detected and flagged
  • Conflicting events surfaced for review
Normalization & deduplication
Raw from email
Fwd: RE: Zoom mtg w/ team tmrw 3pm ET
March 25 2025 10am Central Time
Normalized
Team Zoom Meeting
Tue Mar 25 · 10:00 AM CST
⚠️ Duplicate removed: "Design Summit" (3 emails → 1 event)
✓ Kept: Design Summit Chicago · Fri Mar 21 · 9:00 AM
5
Sync

Sync approved events to Google Calendar.

High-confidence events are written into your Google Calendar. Routing rules send work events to your work calendar and personal events to your personal one. Each event links back to its source email.

  • Auto-sync for high-confidence events
  • Routing rules: work vs personal calendars
  • Source email link stored with each event
  • Cancellations automatically remove events
Routing to calendars
🏢 Work Calendar
Q4 Product Review
Thu Mar 20 · 3:00 PM
Marketing All-Hands
Mon Mar 24 · 10:00 AM
👤 Personal Calendar
Design Summit Chicago
Fri Mar 21 · 9:00 AM
Flight ORD → SFO
Sat Mar 22 · 7:30 AM
6
Review

Review exceptions. You stay in control.

Low-confidence items appear in a review queue instead of syncing automatically. Approve, edit, or skip in one click. Nothing uncertain ever lands on your calendar without your say-so.

  • Uncertain events surface before they sync
  • See the source email behind every queued item
  • Approve, edit details, or skip in one click
  • Set rules to auto-approve trusted senders
Review queue — 3 items
✈️
Flight ORD → SFO
Delta · Date ambiguous
🏥
Dentist appointment
Family Dental · Time not found
📋
Community Board Meeting
Oak Park HOA · Recurring?

“Calzine is not just email parsing. It is an intelligence layer between your inbox and your calendar.”

Ready to trust
your calendar again?

Join the waitlist and stop managing events manually.