Realm is a mobile database: a replacement for Core Data & SQLite

An in-app debugging and exploration tool for iOS

Staggeringly powerful macOS desktop automation with Lua

A fast & simple, yet powerful & flexible logging framework for macOS, iOS, tvOS, watchOS and visionOS

Darwin/macOS emulation layer for Linux

Package manager for Xcode

MacOS system extension that allows applications to pass audio to other applications. Soundflower works on macOS Catalina.

Mac app that shows all open files, directories, sockets, pipes and devices in use by all running processes. Nice GUI for lsof.

Xcode plug-in which helps you write documentation comment easier, for both Objective-C and Swift.

Cocos2d for iOS and OS X, built using Objective-C

[DEPRECATED]

Lightweight, embedded, syncable NoSQL database engine for iOS and MacOS apps.

A DSL for Data Manipulation

Kobold Kit is the game engine built on and extending Apple's Sprite Kit Framework.

Objective-C library that provides YQL connectivity for iOS applications.

A Unity wrapper for the Kiip iOS and Android SDK's.