The purpose of the priority inbox on Keypup is to gather items that you - as a developer - must action rapidly. The priority inbox leverages data from all apps you connected in order to evaluate the priority of items and the actions to take for each of them.
The priority inbox currently provides two actions.
Link pull requests to issues
Issues can be related to pull requests using keywords in titles, descriptions, and commits. Keypup will automatically combine items and activity feeds.
Comment on pull requests or issues
A Quick reply field is also available for on items and related items (related items appear when a pull request is grouped with related issues).