Average Ratings 1 Rating
Average Ratings 1 Rating
Description
Your calendar serves as a comprehensive record of your life, and Proton Calendar prioritizes your privacy. With automatic end-to-end encryption, Proton Calendar ensures that all your events remain secure. Events shared by users of other calendars are protected through zero-knowledge encryption, guaranteeing that details such as titles, descriptions, locations, and guest lists remain confidential, even from Proton. This service allows you to efficiently manage your schedule while safeguarding your personal information. Developed by the creators of Proton Mail, which is recognized as the largest encrypted email provider globally, Proton Calendar has attracted over 50 million users, including prominent organizations. Additionally, Proton Calendar includes a Proton Mail address for sending secure event invitations, enhancing your organization capabilities. You can conveniently add new events to your calendar directly from your Proton Mail inbox, streamlining your scheduling process even further.
Description
SYNCDATE keeps several calendars honest about when one person is busy. It is for anyone who holds a calendar at more than one organisation: a consultant with a calendar at every client, a fractional executive, an agency owner, or someone with a day job and a business on the side.
Connect each account over OAuth: Google Calendar, Microsoft Outlook or Microsoft 365, iCloud, Fastmail, Nextcloud or any CalDAV server. Choose which calendars feed which, one way or both ways. From then on, a meeting booked at one company blocks the time at the others. Subscribed iCal feeds can be used as a read-only source.
A copy says what you decide. By default a copy shows Busy and nothing else, except in a two-way sync between calendars you own, which keeps the real titles. You can write your own text for the title, description and location on every plan. The Plus plan adds if/otherwise rules that look at an event's length, start time, weekday or a guest's email domain. The Pro plan lets each calendar in one sync follow its own rule.
Google and Outlook changes usually reach the other calendar in under a minute. CalDAV calendars are checked about every 15 minutes. Every run is recorded and shown on the dashboard with the state of each sync. SYNCDATE only adds and removes its own copies, never edits your original events, and when you delete a sync it can remove everything it created.
The free plan holds two calendars across two accounts with no card and no time limit. Plus and Pro add accounts, calendars, range and rules, with a 7-day trial. Team gives every seat the Pro plan on one invoice; the administrator sees plan status and sync health, never anyone's events. Hosted in the EU. The same account can be used from an AI assistant over MCP.
API Access
Has API
No
API Access
Has API
No
Pricing Details
Free
Free Trial
No
Free Version
Yes
Pricing Details
Free
Paid from $1.99/month
Free Trial
No
Free Version
Yes
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
Yes
Windows
No
Mac
No
Linux
No
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Vendor Details
Company Name
Proton AG
Founded
2014
Country
Switzerland
Website
proton.me/calendar
Vendor Details
Company Name
DUMA DIGITAL SOLUTIONS S.R.L.
Founded
2025
Country
Bucharest, Romania
Website
syncdate.app
Product Features
Appointment Scheduling
Appointment Reminders
No
Automated Scheduling
No
Calendar Sync
No
Client Database
No
Group Scheduling
No
Mobile Access
No
Multi-Location
No
Online Booking
No
Online Payments
No
Recurring Appointments
No
Room Booking Management
No
Calendar
Calendar Sync
No
Collaboration Tools
No
Multi-Device Support
No
Reminders
No
Room Booking
No
Scheduling
No
Task Manaagement
No
Productivity
Collaboration
No
Database Creation
No
Document Creation
No
File Sharing
No
Notes Management
No
Office Suite
No
Presentation Tools
No
Project Management
No
Task Management
No
Team Chat
No
Product Features
Calendar
Calendar Sync
No
Collaboration Tools
No
Multi-Device Support
No
Reminders
No
Room Booking
No
Scheduling
No
Task Manaagement
No