Launching today
Callum

Callum

AI calendar assistant for teams – supercharge your calendar

124 followers

Callum is an AI calendar assistant built for teams using Google Calendar. It understands multi-person meetings, shared availability, and real-world scheduling constraints. Use natural language to schedule, reschedule, and manage meetings without back-and-forth emails or manual calendar admin. Boost Callum knowledge by connecting your CRM, ATS, CSM apps. Available on Web, iOS, Slack and ChatGPT (soon).
Callum gallery image
Callum gallery image
Callum gallery image
Callum gallery image
Callum gallery image
Free
Launch Team / Built With
AssemblyAI
AssemblyAI
Build voice AI apps with a single API
Promoted

What do you think? …

Nick Ustinov
Hey Product Hunt 👋 I’m the maker of Callum. Callum adds an AI layer on top of your work calendar to make scheduling simpler and more intuitive. Instead of clicking through calendar UIs or coordinating manually, you can just tell Callum what you want to do and it takes care of the rest. It is built for work schedules and understands multi-person meetings, shared availability, and real scheduling constraints on Google Calendar. We are launching today on web and iOS. Slack and ChatGPT integrations are coming shortly so Callum can fit naturally into your workflow. I would love feedback from anyone who manages a busy calendar or schedules with teams. Happy to answer any questions. Nick
Petr Antropov

First calendar AI assistant which works properly 🎉🎉🎉 I'll soon stop typing and scrolling and only use voice, such a relief. My favorites are different summaries, searching, adding calls quickly, reminders, and color-coding. I still need to test accessing data via integrations.

Nick Ustinov

@petr_antropov1 Thanks Petr! 🙌 Voice-only life is the dream – soon we'll all forget how to type 😅 Let me know how the integrations go – happy to help if anything acts up 🙏

Anupam Singh

Turning scheduling into a conversation instead of a UI maze is a smart move.

Looking forward to the Slack and ChatGPT integrations.

Nick Ustinov

@anupamsingh0211 Appreciate it! Slack is coming soon – will keep you posted 🙌

Kristaps Lapins

Going to try this for my challenge — scheduling across time zones and multiple teams, 15 emails deep, trying to find 30 minutes that works for everyone.

If it handles multi-person availability well, that alone is worth it. Congrats on the launch, Nick.

Nick Ustinov

@kristaps_lapins1 That's exactly what it's built for! Let me know how it goes – happy to help if anything trips up 🙏

Mikhail Fedorinin

Congrats on the launch. It looks very ambitious!

Nick Ustinov

@mikhail_fedorinin Thank you! Lots more to come 🚀