Codecov vs Kover
Codecov
about.codecov.ioKover
kotlin.github.ioSide by side
| Figure | Codecov | Kover |
|---|---|---|
| Price from | $5/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | — |
| Open source | Yes | — |
| Web | Yes | — |
| macOS | Yes | — |
| Linux | Yes | Yes |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 4 | 1 |
| Spec score · Test Coverage Tools | 9.4 (#1) | 7.4 (#19) |
| Integrations | Supported code hosts include GitHub, GitHub Enterprise, GitLab, GitLab CE/EE, Bitbucket, and Bitbucket Server. | The Gradle plugin works with Kotlin JVM, Kotlin Android, Kotlin Multiplatform, and com.android.kotlin.multiplatform.library plugins. |
| Language support | The integrations page lists languages including C#, Elixir, PHP, Go, Python, JavaScript, Rust, Java, and Swift. | The Gradle plugin supports mixed Kotlin and Java sources and can use JaCoCo as an alternative for coverage measurement and report generation. |
| License | The gazebo server component uses the Functional Source License 1.1 with an Apache 2.0 license granted after two years, while the Codecov GitHub Action repository is MIT licensed. | The project repository identifies its license as Apache-2.0. |
| Purpose | Codecov provides code coverage reporting and insights to help teams improve code quality throughout development. | Kover is a set of tools for collecting test coverage of Kotlin code compiled for JVM and Android platforms. |
| Support | The site lists Pro Support and Enterprise Support, and the pricing comparison includes email support among plan features. | The repository links to contributing guidelines and a code of conduct. |
Plans
In their own words
Codecov
Codecov provides code coverage reporting and development insights, with tools for test analytics, JavaScript bundle monitoring and pull-request checks. It reports line, branch, project and patch coverage in XML, JSON and TXT formats. Pull-request annotations and coverage gates help teams review changes; Status Checks can block a merge when coverage is underperforming. Historical trends show coverage over time. Test Analytics reports failures and detects flaky tests, while Bundle Analysis flags oversized JavaScript bundles in pull requests and tracks bundle-size changes. The homepage also describes AI features for generating unit tests and reviewing pull requests. Developers can use a command-line interface or VS Code extension for coverage information and visualization. Integrations include GitHub, GitLab, Bitbucket, CI platforms and Slack. Codecov lists a broad range of supported languages, including C#, Go, Python, JavaScript, Rust and Swift. It is available through web, API, extension and self-hosted options. The free Developer plan has upload limits for private repositories; paid plans start at $5/user/mo, and a 14-day trial is available.
Kover
Kover is a free, Apache-2.0-licensed toolkit maintained by Kotlin for measuring test coverage in Kotlin and Java code compiled for JVM and Android targets. It provides Gradle and Maven plugins, a command-line interface, offline instrumentation, a JVM agent, and a features artifact. The Gradle plugin creates HTML and XML reports, supports IC output, and can enforce coverage gates using line, instruction, and branch measurements. It integrates with Kotlin JVM, Kotlin Android, Kotlin Multiplatform, and the com.android.kotlin.multiplatform.library plugins, including mixed Kotlin and Java sources. JaCoCo can replace Kover for measurement and report generation. Android build variants and Android host tests are supported, but instrumented tests on devices are not collected. JavaScript and native targets are outside the Gradle plugin’s support. Requirements include Gradle 6.8.3 or later, JVM 1.7 or later for tests, and Android Gradle Plugin 7.0.0 or later. Class instrumentation during JVM test loading may affect performance or concurrent tests.