InstagramKit is an extensive Objective C wrapper for the Instagram API, completely compatible with Swift. InstagramKit is built atop AFNetworking’s blocks-based architecture and additionally, parses JSON data and creates model objects asynchronously so there’s absolutely no parsing on the main thread. It’s neat, fast and works like a charm.
Intercom's SDK helps developers integrate the Intercom Messenger into native iOSapps. Using this SDK, developers can change configuration to optimize performance, enable push notifications and identity verification, and link to pages within the app.
iTellAFriend is an iOStoolkit for displaying a preconfigued mail composer with a "Tell a Friend" template in iOSapps. iTellAFriend requires no configuration at all and will use the application's bundle ID to look the app ID up on the App Store.
JIRA Mobile Connect (JMC) is an iOSlibrary that can be embedded into any iOSapplication to provide real-time crash reporting (have users or testers submit crash reports directly to your JIRA instance), user or tester feedback views, and Rich data input. JIRA Mobile Connect (JMC) requires iOS8.0+, Xcode 7.0+, A JIRA Software instance, and JIRA Mobile Connect Plugin for proper implementation.
Jastor is an Objective-C base class that is initialized with a dictionary (probably from your JSON response), and assigns dictionary values to all its (derived class's) typed @properties. Jastor supports nested types, arrays, NSString, NSNumber, NSDate and more. Jastor is NOT a JSON parser. For that, you have JSONKit, yajl and many others.
JBChartView is a iOS-based charting library for both line and bar graphs. It is easy to set-up, and highly customizable. JBChartView features drop-in UIView subclass supported across all devices, line and bar graph support, Simple to use protocols modeled after a UITableView, Highly customizable, expand & collapse animation support.
JNKeychain is a simple wrapper to store, load and delete items from the iOSKeychain. (Uses ARC). JNKeychain is compatible with both ARC and traditional retain/release code. Since version 0.9 the headers use the new Objective-C nullability annotations for nicer interoperability with Swift, so you will need Xcode 6.3 or later to compile it.