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Description
Callum serves as a sophisticated AI calendar assistant that allows for efficient management of your work schedule through natural-language commands, enabling users to quickly organize their calendars by merely speaking or typing their requests instead of grappling with traditional calendar interfaces. Currently compatible with Google Calendar, with plans to support Outlook in the future, Callum enables users to easily schedule, modify, delete, and search for events by articulating their needs, streamlining the process of coordinating with others by checking availability and proposing ideal meeting times, thereby reducing the need for back-and-forth emails. In addition to these fundamental scheduling capabilities, Callum comprehends context and can integrate information from various platforms like HubSpot, Greenhouse, and other CRM/ATS systems, which allows it to furnish users with pertinent historical and deal insights, ensuring they are well-prepared for meetings. Furthermore, users can engage in conversational queries about their calendars, such as inquiring about their available free time for the week or recalling the last occasion they met with a specific contact, making calendar management not only easier but also more intuitive. This level of integration and understanding elevates Callum beyond a mere scheduling tool, positioning it as a valuable ally in navigating professional commitments.
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 shows on the dashboard. Delete a sync and it can remove every copy it made. Hosted in the EU, with a data processing agreement on every plan.
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
Integrations
Google Calendar
Yes
Fastmail
No
Greenhouse
Yes
HubSpot CRM
Yes
Microsoft 365
No
Microsoft Outlook
No
Nextcloud
No
iCloud
No
Integrations
Google Calendar
Yes
Fastmail
Yes
Greenhouse
No
HubSpot CRM
No
Microsoft 365
Yes
Microsoft Outlook
Yes
Nextcloud
Yes
iCloud
Yes
Pricing Details
Free
Free Trial
No
Free Version
Yes
Pricing Details
Free
Free plan; Plus $11.99 per month; Pro $21.99 per month; Team from $19.99 per seat per month, 5 seats minimum, lower with seat volume. Prices include tax.
Free Trial
Yes
Free Version
Yes
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
Yes
iPad App
No
Android App
No
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
Callum
Country
United States
Website
getcallum.com
Vendor Details
Company Name
DUMA DIGITAL SOLUTIONS S.R.L.
Founded
2026
Country
Bucharest, Romania
Website
syncdate.app
Product Features
Calendar
Calendar Sync
No
Collaboration Tools
No
Multi-Device Support
No
Reminders
No
Room Booking
No
Scheduling
No
Task Manaagement
No
Product Features
Calendar
Calendar Sync
Yes
Collaboration Tools
No
Multi-Device Support
No
Reminders
No
Room Booking
No
Scheduling
No
Task Manaagement
No