Lawrence Chen

Mac Informer - Easily update apps from App Store and other sources.

EtreCheck - Find the reason why your computer isn't working properly.

DarwinDumper

xca - XCA is an interface for managing asymetric keys like RSA or DSA.

EtreCheck - Find the reason why your computer isn't working properly.

Authy Desktop

Yummy FTP Alias - Yummy FTP Alias brings quick and easy drag & drop FTP to your Desktop - drag your files onto an FTP Alias icon in the Finder or Dock to upload...

Thunderbird - Strong desktop email client with superior speed and responsiveness time.

LogiMgr Uninstaller

LaunchControl - Launchd(8) frontend allowing you to manage and debug system and user services on your Mac.

Keynote - Incredible presentations, incredibly easy.

iTunes - iTunes is built-in Mac software which does far more than just play tunes.

Fantastical 2

Dropbox - Automatically back up your data to your Dropbox account.

CotEditor - Cocoa-based plain text editor for Mac OS X.

calibre - Read, edit, and convert your e-books directly from your Mac.

BookMacster - Manage your bookmark collection with minimum effort.

Deliveries - Keep track of all your packages, so you always know when they're going to arrive.

CleanMyDrive2

LCC Uninstaller

SmartSVN - Manage changes to source files in a software development project.

mySIMBL - mySIMBL is an app designed to make managing SIMBL plugins easy.

VLC media player - Watch your favorite movies and listen to your music from one app.