# Azure Service Mesh vs Istio

**Leader by Vioscale score:** Istio

| Attribute | Azure Service Mesh | Istio |
|---|---|---|
| **Vioscale score** | 28.9 (4% (low)) | 57.2 (54% (medium)) |
| activity.commits_last_30d | - | 100 |
| adoption.dependent_repos | - | 149 |
| adoption.github_stars | - | 38,355 |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"hybrid":true,"on_prem":true,"self_hosted":true}` |
| description.long | Istio-based service mesh add-on for Azure Kubernetes Service (AKS) that provides observability, traffic management, and security capabilities for distributed microservices architectures. | A platform that manages communication between microservices in Kubernetes environments, providing traffic control, security policies, and monitoring capabilities without requiring application changes |
| features.capabilities | `{"proxy":"envoy","data_plane":"sidecar","vm_support":true,"cncf_maturity":"graduated"}` | `{"proxy":"envoy","data_plane":"sidecar","vm_support":true,"cncf_maturity":"graduated","automatic_mtls":true,"traffic_splitting":true,"commercial_support":true,"built_in_observability":true}` |
| integrations.count | - | 1 |
| integrations.list | - | `[{"name":"cert-manager"}]` |
| language.primary | - | Go |
| license.spdx | - | Apache-2.0 |
| market.availability | - | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | - | `{"cli":true}` |
| pricing | `{"type":"open_source","sourceUrl":"https://learn.microsoft.com/en-us/azure/aks/istio-about","retrievedAt":"2026-08-14T08:36:53.281Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://istio.io","retrievedAt":"2026-08-14T21:53:50.466Z"}` |
| pricing.free_tier | - | yes |
| pricing.model | open_source | open_source |
| pricing.price_level | free | free |
| pricing.transparent | - | yes |
| release.cadence_days | - | 5 |
| release.history | - | `[{"url":"https://github.com/istio/istio/releases/tag/1.31.0-rc.2","date":"2026-08-25T16:57:21Z","type":"prerelease","version":"1.31.0-rc.2"},{"url":"https://github.com/istio/istio/releases/tag/1.31.0-rc.0","date":"2026-08-19T14:07:42Z","type":"prerelease","version":"1.31.0-rc.0"},{"url":"https://github.com/istio/istio/releases/tag/1.31.0-beta.2","date":"2026-08-19T13:05:52Z","type":"prerelease","version":"1.31.0-beta.2"},{"url":"https://github.com/istio/istio/releases/tag/1.31.0-beta.1","date":"2026-08-17T12:46:22Z","type":"prerelease","version":"1.31.0-beta.1"},{"url":"https://github.com/istio/istio/releases/tag/1.31.0-alpha.2","date":"2026-08-11T12:40:13Z","type":"prerelease","version":"1.31.0-alpha.2"},{"url":"https://github.com/istio/istio/releases/tag/1.31.0-alpha.0","date":"2026-07-22T10:19:54Z","type":"prerelease","version":"1.31.0-alpha.0"},{"url":"https://github.com/istio/istio/releases/tag/1.30.3","date":"2026-07-16T16:50:56Z","type":"stable","version":"1.30.3"},{"url":"https://github.com/istio/istio/releases/tag/1.29.6","date":"2026-07-16T16:51:06Z","type":"stable","version":"1.29.6"},{"url":"https://github.com/istio/istio/releases/tag/1.28.10","date":"2026-07-01T10:31:11Z","type":"stable","version":"1.28.10"},{"url":"https://github.com/istio/istio/releases/tag/1.30.2","date":"2026-06-24T18:25:13Z","type":"stable","version":"1.30.2"},{"url":"https://github.com/istio/istio/releases/tag/1.29.5","date":"2026-06-24T18:25:57Z","type":"stable","version":"1.29.5"},{"url":"https://github.com/istio/istio/releases/tag/1.28.9","date":"2026-06-24T18:26:50Z","type":"stable","version":"1.28.9"},{"url":"https://github.com/istio/istio/releases/tag/1.30.1","date":"2026-06-04T21:49:36Z","type":"stable","version":"1.30.1"},{"url":"https://github.com/istio/istio/releases/tag/1.29.4","date":"2026-06-04T21:51:28Z","type":"stable","version":"1.29.4"},{"url":"https://github.com/istio/istio/releases/tag/1.28.8","date":"2026-06-04T21:50:17Z","type":"stable","version":"1.28.8"},{"url":"https://github.com/istio/istio/releases/tag/1.30.0","date":"2026-05-18T19:05:52Z","type":"stable","version":"1.30.0"},{"url":"https://github.com/istio/istio/releases/tag/1.29.3","date":"2026-05-18T18:25:10Z","type":"stable","version":"1.29.3"},{"url":"https://github.com/istio/istio/releases/tag/1.28.7","date":"2026-05-18T18:24:56Z","type":"stable","version":"1.28.7"},{"url":"https://github.com/istio/istio/releases/tag/1.30.0-rc.0","date":"2026-05-05T22:03:55Z","type":"prerelease","version":"1.30.0-rc.0"},{"url":"https://github.com/istio/istio/releases/tag/1.30.0-beta.0","date":"2026-04-27T21:00:38Z","type":"prerelease","version":"1.30.0-beta.0"}]` |
| reliability.status_page | yes | - |
| security.gdpr | - | yes |
| security.scorecard | - | 6.5 |
| security.vulnerabilities | - | `{"count":11,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=istio.io%2Fistio&per_page=100","last_12m":2,"max_severity":"HIGH"}` |

## Capabilities (Service Mesh)

| Capability | Azure Service Mesh | Istio |
|---|:--:|:--:|
| **Architecture** |  |  |
| Data plane | Sidecar | Sidecar |
| Proxy | Envoy | Envoy |
| **Security** |  |  |
| Automatic mutual TLS | - | ✓ |
| SPIFFE / SPIRE identity | - | - |
| **Traffic** |  |  |
| Traffic splitting / canary | - | ✓ |
| Fault injection / resilience | - | - |
| **Scale** |  |  |
| Multi-cluster federation | - | - |
| **Portability** |  |  |
| VM support (beyond Kubernetes) | ✓ | ✓ |
| **Observability** |  |  |
| Built-in observability | - | ✓ |
| **Standards** |  |  |
| Gateway API / GAMMA support | - | - |
| **Extensibility** |  |  |
| WASM extensibility | - | - |
| **Compliance** |  |  |
| FIPS mode | - | - |
| **Ecosystem** |  |  |
| CNCF maturity | Graduated | Graduated |
| **Ops** |  |  |
| Commercial support / enterprise edition | - | ✓ |

*Source: Vioscale. Generated 2026-09-01T17:25:22.343Z. "-" = undocumented, not absent.*