Hydra vs TeamCity
Hydra
github.com
TeamCity
jetbrains.comSide by side
| Figure | Hydra | TeamCity |
|---|---|---|
| Price from | Free | $15/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | Yes | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| Linux | Yes | Yes |
| Android | — | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 8 |
| Spec score · Continuous Integration Software | 8.5 (#11) | 8.7 (#7) |
| Integrations | Hydra jobset inputs can use Git checkout sources, and the documented examples use GitHub repositories. | Built-in integrations use UI controls or specialized REST endpoints, and additional plugins can extend coverage. |
| Purpose | Hydra is a continuous integration service for Nix based projects. | TeamCity is a continuous integration and delivery server for automating builds, tests, and software delivery. |
| Rating on G2 | 0 out of 5 from 1 review on the unrelated project-management Hydra listing. | G2 displays individual TeamCity reviews including scores from 3.5/5 to 5/5; reviewers repeatedly praise integrations, automation, reliability and clear logs. |
| Self-hosting | Hydra can be self-hosted through the NixOS services.hydra module. | On-Premises lets customers install and administer the TeamCity server and agents on their own infrastructure. |
| What it does | Hydra is a continuous-integration service for projects based on Nix. | TeamCity is JetBrains’ continuous integration and continuous delivery server for automating builds, tests and deployments. |
Plans
TeamCity
- Professional (On-Premises)Free
- Cloud$15 a month
- TeamCity Cloud$15 a month
- Additional build credits$20, paid once
- Additional Cloud build credits$20, paid once
- Additional build agent$359 a year
- Additional On-Premises build agent$359 a year
- Enterprise (On-Premises)$2,399 a year
In their own words
Hydra
Hydra is a continuous integration service for projects based on Nix. It checks out project source periodically or continuously, builds it, runs tests, and produces reports. Work is organized into jobsets whose inputs can trigger builds when they change; jobsets can also depend on one another. Flake jobsets are supported when their outputs expose a hydraJobs attribute set. Jobs can produce packages, ISO images, or tarballs, and jobset inputs can use Git checkout sources. Hydra also provides a JSON API. It is aimed at Nix and NixOS package developers, not people who only need to use NixOS. Hydra is open source under GPL-3.0 and listed at free. It is self-hosted, with no hosted option listed, and running it is currently supported only on NixOS; the repository recommends the NixOS module for production. Flake evaluation is restricted from accessing files outside the Nix store. Some state is stored in the database, so backups are needed, and the wiki reports that hydra-queue-runner can sometimes leave queued builds unscheduled.
TeamCity
TeamCity is a continuous integration and delivery server for automating software builds, tests and delivery. Build chains organize pipelines into reusable steps that can run in parallel and share results across configurations. Build caching, artifact dependencies and incremental builds reduce repeated work. TeamCity can test changes before commit and commit them automatically if they pass, while test-history analysis can flag inconsistent results. Pipeline settings can be kept in Kotlin DSL, XML or YAML, or generated from the interface. Supported version control systems include Git, Perforce, Mercurial, Subversion and CVS, with integrations for GitHub, GitLab, Bitbucket and Azure DevOps. Listed infrastructure integrations include AWS, Kubernetes, Google Cloud Platform, Azure Resource Manager and VMware vSphere. TeamCity is available on-premises or in the cloud. The Professional on-premises plan is free forever and includes three build agents, 100 build configurations and 10 pipelines. Cloud costs $15.00 per committer, per month, with a three-committer minimum; its trial is 14 days, while the on-premises Enterprise trial lasts 30 days.