At the moment, there is no way for users to see bounties on Apps: this development would greatly allow users to make use of the bounty extension. A first bounty for building a bounty UI on Apps, including design front and dev front needed to develop and implement the Bounty UI on Apps. Jaco Greeff, given his work and experience, is the curator of this bounty and the EthWorks team is working as implementer.
You can find the bounty proposal here.