Build or Bill

Scheduling and meetings

Coco alternatives

2 open-source projects that already do this job. Free to use - not free to run, which is what the numbers on the right are for.

The full assessment →

The projects

mhss1/MyBrain2,109GPL-3.0All-in-one productivity app with tasks, notes, calendar, diary, and AI assistant.Open on GitHub lukevella/rallly5,206AGPL-3.0Open-source scheduling and collaboration tool for organizing events and meetings.Open on GitHub

What you give up either way

  • Polished, trained conversational prompts and long-term memory tuning
  • Priority support and branded/whitelabeled event creation
  • The product's existing user base and operational telemetry
  • Production-hardened reliability, analytics, and edge-case dialect handling
  • Any proprietary personalization/data optimizations not documented on the site

An open-source project doing the core job proves a replacement is possible. It does not prove it matches Coco, and it does not prove anyone has run it for a month. How we decide.