1. Configuration Options: GitCop primarily focuses on enforcing code style conventions related to commits and pull requests, while ktlint is more specific to the Kotlin language and enforces coding style rules within Kotlin files.
2. Integration: GitCop integrates seamlessly with Git and GitHub, providing automated checks on commit messages and pull requests, whereas ktlint can be integrated into the build process of a Kotlin project for continuous code style validation.
3. Supported Languages: GitCop offers support for any language that uses Git as version control, making it versatile for various projects, while ktlint is specifically tailored for Kotlin projects, providing language-specific rules and checks.
4. Rule Customization: GitCop allows for the customization of rules related to commit messages and pull requests to fit the team's specific needs, while ktlint provides a set of predefined rules for Kotlin code style that can be extended or modified based on project requirements.
5. Feedback Mechanism: GitCop provides feedback directly in the pull request comments, guiding developers on how to improve their commit messages, whereas ktlint offers feedback in the form of console output or integrated IDE plugins for immediate code style corrections.
6. Community Support: GitCop has a strong community following with regular updates and contributions, ensuring the tool's relevance and effectiveness, while ktlint benefits from the Kotlin community's input for enhancements and new features specific to the language.

In Summary, GitCop focuses on code style conventions for commits and pull requests across different languages, while ktlint specializes in enforcing coding style rules within Kotlin projects, integrated and tailored specifically for Kotlin development.