Butler - Client For Jenkins is the best Jenkins CI client for iOS. Its simple design as well as feature richness make it the perfect companion for your Jenkins server.
Butler was designed with the last generation of iOS in mind. 3D touch is supported not only on the home screen but throughout the application. The Butler today widget simplifies the way you monitor your most important jobs and builds.
FEATURES:
+ Full support for viewing your Jobs, Builds, Test Cases, Folders and more
+ Triggering Builds with and without parameters
+ Full 3D touch support
+ Add Jobs and Builds to your favorites to keep an eye on them
+ Today Widget for even faster access to your favorites
+ Connecting to Jenkins instances over `http` and `https`
+ Fully open source!
You can find the source code for Butler here: https://github.com/mobilabsolutions/jenkins-ios