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What is SYNCDATE?

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.

What is Callum?

Callum operates as an advanced AI calendar assistant, facilitating the effective organization of your work schedule through natural language commands, which allows users to swiftly manage their calendars by simply speaking or typing their requests rather than struggling with conventional calendar interfaces. Currently compatible with Google Calendar, and with plans to incorporate Outlook in the near future, Callum empowers users to effortlessly schedule, modify, delete, and search for events by clearly expressing their needs, thus simplifying collaboration with others by checking availability and suggesting optimal meeting times, which significantly minimizes the necessity for endless email exchanges. Beyond these essential scheduling functions, Callum is adept at understanding context and can assimilate information from various platforms such as HubSpot, Greenhouse, and other CRM/ATS systems, enabling it to provide users with relevant historical data and deal insights, ensuring they are adequately prepared for their meetings. Additionally, users can pose conversational questions about their calendars, such as asking about their available free time for the week or recalling the last time they met with a specific contact, which transforms calendar management into a more straightforward and intuitive experience. This impressive level of integration and comprehension not only enhances Callum's functionality beyond that of a simple scheduling assistant but also establishes it as a crucial partner in managing professional obligations and commitments efficiently. Moreover, as Callum continues to evolve, users can look forward to even greater capabilities that will further streamline their workflow and enhance productivity.

Media

Media

Integrations Supported

Google Calendar
Fastmail
Microsoft 365
Microsoft Outlook
Nextcloud
iCloud

Integrations Supported

Google Calendar
Greenhouse
HubSpot CRM

API Availability

API Availability

Pricing Information

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 Version
Free Trial Offered?

Pricing Information

Free
Free Version

Supported Platforms

SaaS

Supported Platforms

SaaS
iPhone

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

DUMA DIGITAL SOLUTIONS S.R.L.

Date Founded

2026

Company Location

Bucharest, Romania

Company Website

syncdate.app

Company Facts

Organization Name

Callum

Company Location

United States

Company Website

getcallum.com

Categories and Features

Calendar

Calendar Sync

Categories and Features

AI Productivity

Not specified

Calendar

Not specified

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