facebookincubator / SocketRocket

A conforming Objective-C WebSocket client library.

MacPass / MacPass

A native macOS KeePass client

Alinto / sogo

SOGo is a very fast and scalable modern collaboration suite (groupware). It offers calendaring, address book management, and a full-featured Webmail client along with resource sharing and permission handling. It also makes use of documented standards (IMAP, CalDAV, CardDAV, etc.) and thereby provides native connectivity (without plugins) to many clients such as Microsoft Outlook, Apple iCal, the iPhone, Mozilla Lightning, and a plethora of mobile devices.

blendbyte / Textual

Textual is a native IRC client for macOS

Mininglamp-OSS / octo-ios

OCTO iOS Client — Open-source enterprise IM

gitx / gitx

The best fork of the best lightweight, visual git client for macOS.

google / google-api-objectivec-client-for-rest

Google APIs Client Library for Objective-C for REST

monal-im / Monal

Monal for XMPP (iOS and macOS)

narezy / MacOBlox

Run the macOS Roblox client on Linux through Darling

kitalev / GitHub-Legacy

An unofficial GitHub client for iOS 5–10