angular-ui-bootstrap vs angular-material: What are the differences?

Developers describe angular-ui-bootstrap as "Native AngularJS". Native AngularJS (Angular) directives for Bootstrap. On the other hand, angular-material is detailed as "This repository is used for publishing the AngularJS Material v1.x library and localized installs using npm". This repository is used for publishing the AngularJS Material v1.x library and localized installs using npm. The component source-code for this library is in the AngularJS Material repository.

angular-ui-bootstrap and angular-material belong to "npm Packages" category of the tech stack.

angular-ui-bootstrap and angular-material are both open source tools. It seems that angular-material with 16.7K GitHub stars and 3.56K forks on GitHub has more adoption than angular-ui-bootstrap with 14.5K GitHub stars and 7.05K GitHub forks.