# Ruby on Rails vs Sinatra

**Leader by vioscaleAI score:** Ruby on Rails

| Attribute | Ruby on Rails | Sinatra |
|---|---|---|
| **vioscaleAI score** | 71.8 (51% (medium)) | 48.2 (55% (medium)) |
| activity.commits_last_30d | 100 | 0 |
| adoption.dependent_repos | 1,358,186 | 144,784 |
| adoption.github_stars | 58,803 | 12,453 |
| content.faq | `[{"answer":"A complete web application framework for Ruby that provides integrated tools, libraries, and conventions for building database-backed web applications across the full stack—from database models to frontend templates and controllers. It is indexed under Web Frameworks.","source":"https://rubyonrails.org","question":"What is Ruby on Rails?","confidence":0.6},{"answer":"Ruby on Rails is open source, so it can be self-hosted and used at no licence cost. It is released under the MIT licence. Pricing changes often, so verify at source before relying on it.","source":"https://rubyonrails.org","question":"Is Ruby on Rails free to use?","confidence":0.6},{"answer":"Ruby on Rails supports the web and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://rubyonrails.org","question":"What platforms does Ruby on Rails support?","confidence":0.6},{"answer":"Yes. Ruby on Rails can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://rubyonrails.org","question":"Can Ruby on Rails be self-hosted?","confidence":0.6},{"answer":"Yes. Ruby on Rails is published under the MIT licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/rails/rails","question":"Is Ruby on Rails open source?","confidence":0.95}]` | - |
| deployment.options | `{"cloud":true,"self_hosted":true}` | - |
| description.long | A full-stack framework for building web applications with integrated database modeling, templating, email handling, real-time WebSocket support, background job processing, and security features. | Sinatra is a minimal web framework for Ruby that enables developers to build web applications quickly using HTTP routes, templates, and Rack middleware. It supports both modular and classic application styles with an unopinionated, blank-slate approach. |
| features.capabilities | `{"language":"Ruby","rendering":"ssr","api_routes":true,"file_routing":true,"license_type":"MIT/BSD","orm_included":true,"cli_scaffolding":true,"language_runtime":"Ruby","typescript_first":false,"websocket_support":true,"architecture_style":"full-stack-mvc","templating_included":true,"background_jobs_included":true}` | `{"api_first":true,"language_runtime":"Ruby","architecture_style":"minimalist","templating_included":true,"testing_framework_included":true}` |
| language.primary | Ruby | Ruby |
| license.spdx | MIT | MIT |
| platform.support | `{"web":true}` | `{"web":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://rubyonrails.org","retrievedAt":"2026-08-16T21:36:16.955Z"}` | - |
| pricing.free_tier | yes | - |
| pricing.model | open_source | - |
| pricing.price_level | free | - |
| release.history | `[{"url":"https://github.com/rails/rails/releases/tag/v8.1.4","date":"2026-09-24T14:19:52Z","type":"stable","version":"v8.1.4"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.4","date":"2026-09-24T16:28:35Z","type":"stable","version":"v7.2.4"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.3.1","date":"2026-07-29T14:59:54Z","type":"stable","version":"v8.1.3.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.5.1","date":"2026-07-29T15:08:22Z","type":"stable","version":"v8.0.5.1"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.3.2","date":"2026-07-29T15:05:22Z","type":"stable","version":"v7.2.3.2"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.3","date":"2026-03-24T20:26:02Z","type":"stable","version":"v8.1.3"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.5","date":"2026-03-24T20:19:33Z","type":"stable","version":"v8.0.5"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.2.1","date":"2026-03-23T19:42:42Z","type":"stable","version":"v8.1.2.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.4.1","date":"2026-03-23T19:38:25Z","type":"stable","version":"v8.0.4.1"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.3.1","date":"2026-03-23T19:32:34Z","type":"stable","version":"v7.2.3.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.2","date":"2026-01-08T20:17:17Z","type":"stable","version":"v8.1.2"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.1","date":"2025-10-28T23:46:29Z","type":"stable","version":"v8.1.1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.4","date":"2025-10-28T23:43:23Z","type":"stable","version":"v8.0.4"},{"url":"https://github.com/rails/rails/releases/tag/v7.2.3","date":"2025-10-28T23:24:18Z","type":"stable","version":"v7.2.3"},{"url":"https://github.com/rails/rails/releases/tag/v7.1.6","date":"2025-10-28T23:19:19Z","type":"stable","version":"v7.1.6"},{"url":"https://github.com/rails/rails/releases/tag/v7.0.10","date":"2025-10-28T23:12:55Z","type":"stable","version":"v7.0.10"},{"url":"https://github.com/rails/rails/releases/tag/v7.0.9","date":"2025-10-28T23:02:29Z","type":"stable","version":"v7.0.9"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.0","date":"2025-10-22T00:35:05Z","type":"stable","version":"v8.1.0"},{"url":"https://github.com/rails/rails/releases/tag/v8.1.0.rc1","date":"2025-10-15T00:50:43Z","type":"prerelease","version":"v8.1.0.rc1"},{"url":"https://github.com/rails/rails/releases/tag/v8.0.3","date":"2025-09-22T22:19:48Z","type":"stable","version":"v8.0.3"}]` | - |
| security.disclosure_policy | yes | - |
| security.scorecard | 6.4 | 6.3 |
| security.trust_center | https://rubyonrails.org/security | - |
| security.vulnerabilities | `{"count":18,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=rubygems&package_name=activesupport&per_page=100","last_12m":3,"max_severity":"CRITICAL"}` | `{"count":6,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=rubygems&package_name=sinatra&per_page=100","last_12m":0,"max_severity":"HIGH"}` |

## Capabilities (Backend Frameworks)

| Capability | Ruby on Rails | Sinatra |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Language runtime | Ruby | Ruby |
| Architecture style | Full stack mvc | Minimalist |
| Async model | - | - |
| Orm included | ✓ | - |
| Templating included | ✓ | ✓ |
| Dependency injection | - | - |
| CLI scaffolding | ✓ | - |
| Openapi autogen | - | - |
| Websocket support | ✓ | - |
| Background jobs included | ✓ | - |
| Testing framework included | - | ✓ |
| API first | - | ✓ |
| Admin UI generated | - | - |
| License type | MIT/BSD | - |

*Source: vioscaleAI. Generated 2026-10-20T16:59:51.355Z. "-" = undocumented, not absent.*