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.

• Website: http://quincykit.net/index.html

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.

• Website: http://www.inappsettingskit.com/

Tapku (tap+haiku) is an open source iOS framework built on Cocoa and UIKit.

Overall, Tapku is a very comprehensive framework that pretty much works wonders when used correctly.

However, although Tapku offers native solutions to common problems (calendar, graphs, etc.), it isn’t a panacea for iOS developers as a lot more ground isn’t covered (data storage?).

• Website: https://github.com/devinross/tapkulibrary

RestKit is an Objective-C Framework for making interacting with RESTful services fast and easy.

RestKit has a number of features that makes the framework developer-friendly:

• A simple and powerful HTTP request/response system.
• Core data support.
• Server-agnostic URLs
• and more…

• Website: http://restkit.org/

Easy APNS is a tool for forwarding messages to your iOS application.

Easy APNS helps you with installing a PHP script that connects with your application; it sends your messages through a cron-job.

Easy APNS is a great way of making your users to interact with your application via notifications.

• Website: http://www.easyapns.com/

gShake is a jQuery plugin that allows you to use the shake event in iOS4.2+.

Although it’s rather easy to detect shaking with Objective C, gShake is a plugin that allows you to use the shake event in websites and applications (or JavaScript games for that matter).

gShake is straightforward, easy to use, and serves its purpose well. You can attach events to the shake function with just a few lines of code:

$(document).ready(function() {
$(this).gShake(function() {
// what happends when shaked?
});
});

• Website: https://github.com/germanson/gshake