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Day 43 since launch: Best Productivity Resources went live on 25 August 2026. Day 43 is live with yesterday's additions in the latest roundup!

Web App

Cal.com

Open-source scheduling without the email ping-pong.

Visit Cal.comFreemium4.4

Built with love by Shushant Lakhyani. Building bestproductivityresources.com

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What is Cal.com?

Cal.com lets people book time against your real availability with routing, buffers and workflows. Self-hostable and open source if you care about owning your scheduling data.

Pros

  • Open source and self-hostable
  • Strong free tier

Cons

  • Advanced routing needs setup

Compare Cal.com

Side-by-side comparisons and lists that include Cal.com.

Cal.com alternatives

Similar resources to Cal.com, picked from the directory.

Calendly

Share one link and let people book time that actually works.

Web AppSchedulingWeb, iOSFreemium

Amie

A calendar, task list and inbox merged into one clean app.

Web AppCalendarWeb, macOSFreemium

Free alternatives to Cal.com

Free resources that cover similar ground.

hop

Free, open-source menu bar toolkit for macOS with eighteen tools in one panel.

Mac AppPersonal ProductivitymacOSFree

Kamra PMS

Open-source hotel and short-term rental property management, agent-ready via MCP.

Web AppOrganizationWebFree

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