Helios is an extensible back-end framework for iOS devices.

Helios is rich in features:

• RESTful data sync;
• Manually send push notifications to devices;
• Powerful logging features;
• etc.

It’s easy to integrate in existing Ruby or Sinatra applications. Helios also stands out with an extensive documentation, so do bookmark the framework if you’re planning to create something iOS-y in the future.

NimbusKit is an iOS toolkit with an emphasis on modularity.

The toolkit aims to solve common iOS app design problems with a rich set of well-documented modular components.

NimbusKit features components, such as a web view controller, table model logic, radio groups and debugging tools as well.

Ejecta is an implementation/platform for canvas, audio and JavaScript.

Ejecta is described by the developers as a ‘browser without the browser’, which kind of explains it.

The thing is, you can get lots of free performance if your apps (probably games) use this platform instead of the browser, as Ejecta only uses some of the features the regular browser uses, therefore reducing the load on the device. To me, it seems it’s all that Ejecta is about.

PaperFold is a iOS view controller that hides and displays views within web applications.

The tool works by making a screen capture of the left and right views and splitting it up depending on the number of folds required.

Performance is an issue for complex tasks like these, so the author could provide some unit tests.

PaperFold comes with a sample product, so implementing it shouldn’t pose a problem.

QuincyKit is a feature-rich toolkit that collects crash data from your OS X / iOS applications.

On the client side, QuincyKit provides a way of sending crash reports to your database, giving the user a choice of whether or not to do it.

If the error is known, the user is notified about the status of the fix; the user can also leave his contact details, etc.

On the developer side, QuincyKit’s admin interface can automatically sort crash data, maintain the crash reports, and assign the progress of bugfixes.

QuincyKit looks like it could become an important cool for any serious Mac/iOS developer.

InAppSettingsKit is a iOS framework for easily adding in-application settings to your apps.

The framework is released under the BSD license, and is completely open-source.

With InAppSettingsKit, you can add several useful features to your applications within minutes:

• On/off switches for settings;
• Mail sending from within your app;
• URL opener;
• Footers;
• A custom view controller;
• etc.