There's this too: https://github.com/nickjj/gemshine https://github.com/nickjj/gemshine It will recursively check a directory for gemfiles and then compare you

There's this too: https://github.com/nickjj/gemshine https://github.com/nickjj/gemshine It will recursively check a directory for gemfiles and then compare your installed version against the latest version. It uses bundle outdated under the hood.