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LangfuseLunary
Freemium

Open source for self-hosting, with a hosted version that can be started for free.

 Paid

Team plan is $20 per user per month, with payment required to activate a workspace.

Web, Self-hosted Web
  • Tracing, prompt management and evaluation in one tool
  • Can be self-hosted or used as a hosted service
  • Real-time analytics on chatbot quality and user behaviour
  • Prompt management separate from application code
  • Requires instrumenting your application with its SDK
  • Self-hosting means running and maintaining the server yourself
  • No free plan shown; payment required to start
  • Hosted service sends app data to Lunary
Self-hosted, Hosted service Hosted service
Open source Closed source
License not stated License not stated
Not stated if an account is needed Account needed
Not stated if it works offline Needs internet

Checked September 26, 2026

Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.