Langfuse vs Fillout
A side-by-side comparison to help you choose the right tool.
89
Langfuse scores higher overall (89/100)
But the best choice depends on your specific needs. Compare below.
| Feature | Langfuse | Fillout |
|---|---|---|
| Our score | 89 | 79 |
| Pricing | Open-source self-hosted core plus commercial/cloud options depending on deployment path. | Free tier with unlimited forms. Paid plans from $19/month with more responses and features. |
| Free plan | Yes | Yes |
| Best for | Teams shipping LLM apps in production, Developers who need traces and evaluation workflows, Organizations standardizing prompt and experiment tracking | teams building forms that connect directly to Airtable, Notion, or databases, product teams running user research surveys, businesses collecting payments through forms |
| Platforms | web, linux, api | web |
| API | Yes | Yes |
| Languages | en | en, no, es, zh, ar |
| Pros |
|
|
| Cons |
|
|
| Visit site | Get started |
Langfuse
89
- 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
Fillout
79
- Pricing
- Free tier with unlimited forms. Paid plans from $19/month with more responses and features.
- Free plan
- Yes
- Best for
- teams building forms that connect directly to Airtable, Notion, or databases, product teams running user research surveys, businesses collecting payments through forms
- Platforms
- web
- API
- Yes
- Languages
- en, no, es, zh, ar
89Choose 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
79Choose Fillout if:
- You are teams building forms that connect directly to Airtable, Notion, or databases
- You are product teams running user research surveys
- You are businesses collecting payments through forms
- You want to start free
FAQ
- What is the difference between Langfuse and Fillout?
- Langfuse is an open-source observability and prompt-management platform for llm applications, with tracing, datasets, and evaluation support. Fillout is a powerful form builder for creating forms, surveys, and quizzes with direct integrations to store responses where you need them.
- Which is cheaper, Langfuse or Fillout?
- Langfuse: Open-source self-hosted core plus commercial/cloud options depending on deployment path.. Fillout: Free tier with unlimited forms. Paid plans from $19/month with more responses and features.. Langfuse has a free plan. Fillout 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 Fillout best for?
- Fillout is best for teams building forms that connect directly to Airtable, Notion, or databases, product teams running user research surveys, businesses collecting payments through forms.