GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
HMTMAA - Clever tool to estimate cost of building an app
GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Reporting Tool For Gitlab - Issues, time & cost centre analysis across repositories
BitBucket - Bitbucket is a free code hosting site for Mercurial and Git. Manage your development with a hosted wiki, issue tracker and source code.
Infracost - Open source cloud cost estimator in pull requests