Archive for category Diagnostics, Infrastructure or Debugging


Drop-in Mac App Store receipt verification.

Official NPReceiptVerification repository

Mac App Store Validation

An example of a working Mac App Store validation, with code signing checks.

Official Mac App Store Validation repository


Fast, thread-safe advanced logging framework with support for simultaneously logging to several destinations (file, network, console etc.).

Official Lumberjack repository


An Objective-C library to access the Sudden Motion Sensors in Mac laptops.

Official SMSLib web site


A simulated version of the iPhone’s StoreKit, for testing store UIs on the iPhone Simulator, or even on device without having to set up IAP in Connect.

Official SimStoreKit repository


An Objective-C implementation of the tools described in “Building Parsers with Java” by Steven John Metsker.

Official ParseKit web site


LinkBack is an open source framework for Mac OS X that helps developers integrate content from other applications into their own. A user can paste content from any LinkBack-enabled application into another and reopen that content later for editing with just a double-click. Changes will automatically appear in the original document again when you save.

Official LinkBack Project web site

OmniGroup LinkBack repository


A simple crash reporter that checks at startup whether your application crashed last time it was launched, then offers to send that information to a script on your server. Also has a mode where it can be used to just send feedback to you directly from your application.

Official UKCrashReporter web site

Official UKCrashReporter repository


A neat little header file with commonly-used macros for Objective C programming:

GNUstep-style ASSIGN(), DESTROY() and CREATE_AUTORELEASE_POOL() for easier accessor writing, clearing and destruction with less typing, easier NSThread method writing, a UKLog() macro that gets turned off in release builds and prefixes messages with the method/function  name, and a PROPERTY() macro that type-checks method name strings for KVO.

Official UKHelperMacros web site

Official UKHelperMacros repository


A little debugging helper function that assigns each pointer a name. That way, you can NSLog() pointers and will get nice, memorable names instead of 0x00848400.

Official UKDebugNames repository (see UKDebugNames.h/.m and UKDebugNames.plist)

Official UKDebugNames site