Code Review & Coverage

• Codecov
• Coveralls

Codecov

Home page

• Free tier: Unlimited public repositories and 1 private repository, unlimited team members.
• Pros: Free code coverage tracking, pull-request comments, and github integration through browser extensions.

Coveralls

Pricing page

• Free tier: Unlimited public repositories.
• Pros: Free test-suite code coverage tracking, pull-request annotation, and repo badges.
• Limitations: free tier does not support private repositories.