# Observable Framework vs Streamlit

| Attribute | Observable Framework | Streamlit |
|---|---|---|
| **Vioscale score** | 51.3 (26% (low)) | 45 (3% (low)) |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"on_prem":true,"self_hosted":true}` |
| description.long | A platform for creating data applications, dashboards, and reports using Markdown, JavaScript, SQL, Python, R, and other programming languages, with cloud hosting, local development tools, and workspace collaboration features. | A Python-based framework that transforms data scripts into interactive web applications for creating dashboards, reports, and data-driven apps without requiring front-end development expertise. |
| integrations.count | 8 | - |
| integrations.list | `[{"name":"DuckDB"},{"name":"D3"},{"name":"Observable Plot"},{"name":"deck.gl"},{"name":"Google Analytics"},{"name":"Datawrapper"},{"name":"GitHub"},{"name":"npm"}]` | - |
| market.availability | `{"hqCountry":"US","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | - |
| platform.support | `{"cli":true,"web":true}` | `{"cli":true,"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free"},{"free":false,"name":"Pro","components":[{"kind":"per_unit","unit":"viewer","amount":10,"period":"month","currency":"USD"}]},{"free":false,"name":"Enterprise","contactSales":true}],"summary":"Free tier available. Workspace viewers: $10/month each.","currency":"USD","freeTier":true,"sourceUrl":"https://observablehq.com/release-notes/2024-05-31-new-workspace-viewer-pricing","retrievedAt":"2026-08-20T12:47:06.676Z","startingPrice":{"unit":"viewer","amount":10,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` | `{"type":"open_source","summary":"Free and open source (Apache 2.0). Community Cloud hosting available at no cost for public applications.","freeTier":true,"sourceUrl":"https://streamlit.io","retrievedAt":"2026-08-18T21:40:22.448Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | low | free |
| pricing.starting_price | `{"amount":10,"currency":"USD"}` | - |
| pricing.transparent | no | yes |
| security.disclosure_policy | - | yes |
| security.soc2 | - | yes |

## Capabilities (Data Apps Internal Tools)

| Capability | Observable Framework | Streamlit |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Build paradigm | - | - |
| Write actions support | - | - |
| Data source connector breadth | - | - |
| Reactivity model | - | - |
| Self hostable | - | - |
| Managed cloud available | - | - |
| Git version control | - | - |
| RBAC SSO | - | - |
| Audit logging | - | - |
| AI app generation | - | - |
| Multiplayer editing | - | - |
| Embeddable output | - | - |
| Component library breadth | - | - |
| Open source | - | - |
| Pricing model | - | - |

*Source: Vioscale. Generated 2026-09-01T15:07:50.824Z. "-" = undocumented, not absent.*