# Ably vs ASP.NET Core SignalR

**Leader by vioscaleAI score:** Ably

| Attribute | Ably | ASP.NET Core SignalR |
|---|---|---|
| **vioscaleAI score** | 75 (73% (medium)) | 47.1 (26% (low)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 27 |
| adoption.github_stars | - | 38,471 |
| content.faq | `[{"answer":"Ably is a platform providing APIs and SDKs for building real-time features including messaging and chat, with fully managed cloud infrastructure. It is indexed under Realtime Messaging Infra.","source":"https://ably.com","question":"What is Ably?","confidence":0.6},{"answer":"Ably offers a free tier, so you can start without paying. Paid plans start at $0.25. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://ably.com/pricing","question":"Is Ably free?","confidence":0.6},{"answer":"Ably supports the web, macOS, iOS, Android and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://ably.com","question":"What platforms does Ably support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Ably, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://ably.com","question":"Can Ably be self-hosted?","confidence":0.6},{"answer":"We have confirmed 17 integrations for Ably, including AWS Lambda, Microsoft Azure Functions, Google Cloud Functions, Cloudflare Workers, AWS Kinesis, Kafka, RabbitMQ and AMQP, plus 9 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://ably.com/pricing","question":"What does Ably integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Ably. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Ably not holding them. Always confirm compliance directly before you rely on it.","source":"https://ably.com/security-and-compliance","question":"What security certifications does Ably have?","confidence":0.7},{"answer":"Ably is available in the United Kingdom, the United States and Australia. Its primary markets are the United Kingdom and the United States. The vendor is headquartered in the United Kingdom.","source":"https://ably.com/pricing","question":"Where is Ably available?","confidence":0.75}]` | `[{"answer":"SignalR is an open-source library that enables ASP.NET applications to deliver real-time updates by pushing server content directly to connected clients. It supports multiple client platforms including web browsers, mobile devices, and desktop applications. It is indexed under Realtime Messaging Infra.","source":"https://dotnet.microsoft.com/en-us/apps/aspnet/signalr","question":"What is ASP.NET Core SignalR?","confidence":0.6},{"answer":"ASP.NET Core SignalR 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://dotnet.microsoft.com/en-us/apps/aspnet/signalr","question":"Is ASP.NET Core SignalR free to use?","confidence":0.6},{"answer":"ASP.NET Core SignalR supports the web, Windows, macOS and Linux. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://dotnet.microsoft.com/en-us/apps/aspnet/signalr","question":"What platforms does ASP.NET Core SignalR support?","confidence":0.6},{"answer":"Yes. ASP.NET Core SignalR can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://dotnet.microsoft.com/en-us/apps/aspnet/signalr","question":"Can ASP.NET Core SignalR be self-hosted?","confidence":0.6},{"answer":"We have confirmed 5 integrations for ASP.NET Core SignalR, including Redis, SQL Server, Azure Service Bus, Azure SignalR Service and Power Apps. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://dotnet.microsoft.com/en-us/apps/aspnet/signalr","question":"What does ASP.NET Core SignalR integrate with?","confidence":0.6},{"answer":"Yes. ASP.NET Core SignalR 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/dotnet/aspnetcore","question":"Is ASP.NET Core SignalR open source?","confidence":0.95}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | Ably is a platform providing APIs and SDKs for building real-time features including messaging and chat, with fully managed cloud infrastructure. | An ASP.NET Core library that allows server-side code to transmit updates to connected clients instantly. It provides client implementations for .NET, Java, and TypeScript/JavaScript, making it straightforward to build applications with live data synchronization. |
| features.capabilities | `{"presence":true,"deployment":"cloud-hosted","pricing_model":"MAU-metered","global_edge_network":true}` | `{"auth_model":"token/JWT","deployment":"hybrid","scaling_model":"external-adapter-required","self_hostable":true}` |
| integrations.count | 17 | 5 |
| integrations.list | `[{"name":"AWS Lambda"},{"name":"Microsoft Azure Functions"},{"name":"Google Cloud Functions"},{"name":"Cloudflare Workers"},{"name":"AWS Kinesis"},{"name":"Kafka"},{"name":"RabbitMQ"},{"name":"AMQP"},{"name":"AWS SQS"},{"name":"Pulsar"},{"name":"Zapier"},{"name":"IFTTT"},{"name":"Datadog"},{"name":"BigQuery"},{"name":"Terraform"},{"name":"Netlify"},{"name":"HTTP Webhooks"}]` | `[{"name":"Redis"},{"name":"SQL Server"},{"name":"Azure Service Bus"},{"name":"Azure SignalR Service"},{"name":"Power Apps"}]` |
| language.primary | - | C# |
| license.spdx | - | MIT |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"ios":true,"mac":true,"web":true,"android":true,"windows":true}` | `{"web":true}` |
| pricing | `{"type":"hybrid","plans":[{"free":true,"name":"Free","summary":"Free","features":["All Ably products included","Community and email support","No commitment"],"components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"description":"Proof of concept development","contactSales":false,"includedLimits":{"message_size":"64KiB","message_storage":"1 day","concurrent_connections":"200"}},{"free":false,"name":"Standard","summary":"$29/month plus usage charges","features":["1 day email support SLA"],"components":[{"kind":"fixed","amount":29,"period":"month","currency":"USD"},{"per":{"qty":1000000,"unit":"messages"},"kind":"metered","amount":2.5,"currency":"USD"},{"per":{"qty":1000000,"unit":"channel_minutes"},"kind":"metered","amount":1,"currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.25,"currency":"USD"}],"description":"Production deployment","contactSales":false},{"free":false,"name":"Pro","summary":"$399/month plus usage charges","features":["4 hour email support SLA","Datadog lite monitoring"],"components":[{"kind":"fixed","amount":399,"period":"month","currency":"USD"},{"per":{"qty":1000000,"unit":"messages"},"kind":"metered","amount":2.5,"currency":"USD"},{"per":{"qty":1000000,"unit":"channel_minutes"},"kind":"metered","amount":1,"currency":"USD"},{"per":{"qty":1,"unit":"GiB"},"kind":"metered","amount":0.25,"currency":"USD"}],"description":"Business critical workloads","contactSales":false},{"free":false,"name":"Enterprise","summary":"Custom pricing","features":["24/7 mission critical support","99.999% uptime SLA","Committed use discounts","Datadog integration","SSO and SCIM","CNAME custom domain","Architectural guidance","Regional data routing","Dedicated cluster"],"contactSales":true}],"summary":"Free tier available. Paid plans start at $29/month with per-million message and channel minute billing.","currency":"USD","freeTier":true,"sourceUrl":"https://ably.com/pricing","retrievedAt":"2026-08-19T18:25:09.786Z","startingPrice":{"amount":29,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://dotnet.microsoft.com/en-us/apps/aspnet/signalr","retrievedAt":"2026-08-19T23:11:59.751Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | open_source |
| pricing.price_level | low | free |
| pricing.starting_price | `{"amount":29,"currency":"USD"}` | - |
| pricing.transparent | yes | - |
| release.history | - | `[{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v9.0.21","date":"2026-10-13T21:54:26Z","type":"stable","version":"v9.0.21"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v8.0.32","date":"2026-10-13T21:43:01Z","type":"stable","version":"v8.0.32"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v10.0.13","date":"2026-10-13T22:26:19Z","type":"stable","version":"v10.0.13"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v8.0.31","date":"2026-09-08T21:47:38Z","type":"stable","version":"v8.0.31"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v10.0.12","date":"2026-09-08T22:09:32Z","type":"stable","version":"v10.0.12"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v9.0.20","date":"2026-09-08T21:56:24Z","type":"stable","version":"v9.0.20"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v8.0.30","date":"2026-08-11T19:33:52Z","type":"stable","version":"v8.0.30"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v9.0.19","date":"2026-08-11T21:09:36Z","type":"stable","version":"v9.0.19"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v10.0.11","date":"2026-08-11T21:44:32Z","type":"stable","version":"v10.0.11"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v8.0.29","date":"2026-07-14T21:57:27Z","type":"stable","version":"v8.0.29"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v10.0.10","date":"2026-07-15T00:37:48Z","type":"stable","version":"v10.0.10"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v9.0.18","date":"2026-07-15T00:14:08Z","type":"stable","version":"v9.0.18"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v9.0.17","date":"2026-06-09T19:09:17Z","type":"stable","version":"v9.0.17"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v8.0.28","date":"2026-06-09T18:28:00Z","type":"stable","version":"v8.0.28"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v11.0.0-preview.4","date":"2026-05-12T20:57:10Z","type":"prerelease","version":"v11.0.0-preview.4"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v10.0.9","date":"2026-06-09T19:51:13Z","type":"stable","version":"v10.0.9"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v9.0.16","date":"2026-05-12T18:41:14Z","type":"stable","version":"v9.0.16"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v8.0.27","date":"2026-05-12T18:40:22Z","type":"stable","version":"v8.0.27"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v10.0.8","date":"2026-05-12T18:26:28Z","type":"stable","version":"v10.0.8"},{"url":"https://github.com/dotnet/aspnetcore/releases/tag/v10.0.6","date":"2026-04-20T18:54:24Z","type":"stable","version":"v10.0.6"}]` |
| reliability.sla_pct | 99.999 | 99.9 |
| reliability.status_page | yes | - |
| security.gdpr | yes | - |
| security.hipaa | yes | - |
| security.scorecard | - | 6.7 |
| security.soc2 | yes | - |
| security.vulnerabilities | - | `{"count":4,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=nuget&package_name=microsoft.aspnetcore.mvc&per_page=100","last_12m":0,"max_severity":"HIGH"}` |

## Capabilities (Realtime Messaging Infra)

| Capability | Ably | ASP.NET Core SignalR |
|---|:--:|:--:|
| **Capabilities** |  |  |
| Presence | ✓ | - |
| Message history replay | - | - |
| Delivery guarantee | - | - |
| Global edge network | ✓ | - |
| Scaling model | - | External adapter required |
| Offline reconnect catchup | - | - |
| Push notification bridge | - | - |
| Auth model | - | Token/JWT |
| Self hostable | - | ✓ |
| Mqtt support | - | - |
| Deployment | Cloud hosted | Hybrid |
| Pricing model | MAU metered | - |

*Source: vioscaleAI. Generated 2026-10-16T19:22:32.659Z. "-" = undocumented, not absent.*