Project and task management

zcal alternatives

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

The full assessment →

The projects

What you give up either way

  • Design polish and templating breadth
  • Reliability and uptime guarantees at scale
  • Enterprise-grade team features (round robin, collective scheduling) and advanced admin tools
  • Brand reputation and trust signals
  • Breadth of prebuilt integrations and ongoing maintenance

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