Langfuse vs Cal.com

A side-by-side comparison to help you choose the right tool.

Langfuse scores higher overall (89/100)

But the best choice depends on your specific needs. Compare below.

Pricing
Open-source self-hosted core plus commercial/cloud options depending on deployment path.
Free plan
Yes
Best for
Teams shipping LLM apps in production, Developers who need traces and evaluation workflows, Organizations standardizing prompt and experiment tracking
Platforms
web, linux, api
API
Yes
Languages
en
Pricing
Free for individuals. Team plans from $12/user/month. Enterprise pricing available.
Free plan
Yes
Best for
founders and consultants who need flexible meeting scheduling, developers building scheduling features into their own apps, teams wanting an open-source alternative to Calendly
Platforms
web, api
API
Yes
Languages
en, no, es, zh, ar

Choose Langfuse if:

  • You are Teams shipping LLM apps in production
  • You are Developers who need traces and evaluation workflows
  • You are Organizations standardizing prompt and experiment tracking
  • You want to start free
Read Langfuse review →

Choose Cal.com if:

  • You are founders and consultants who need flexible meeting scheduling
  • You are developers building scheduling features into their own apps
  • You are teams wanting an open-source alternative to Calendly
  • You want to start free
Read Cal.com review →

FAQ

What is the difference between Langfuse and Cal.com?
Langfuse is an open-source observability and prompt-management platform for llm applications, with tracing, datasets, and evaluation support. Cal.com is an open-source scheduling platform for individuals, businesses, and developers building scheduling into their products.
Which is cheaper, Langfuse or Cal.com?
Langfuse: Open-source self-hosted core plus commercial/cloud options depending on deployment path.. Cal.com: Free for individuals. Team plans from $12/user/month. Enterprise pricing available.. Langfuse has a free plan. Cal.com has a free plan.
Who is Langfuse best for?
Langfuse is best for Teams shipping LLM apps in production, Developers who need traces and evaluation workflows, Organizations standardizing prompt and experiment tracking.
Who is Cal.com best for?
Cal.com is best for founders and consultants who need flexible meeting scheduling, developers building scheduling features into their own apps, teams wanting an open-source alternative to Calendly.