OpenCV - OpenCV is the world's biggest computer vision library

Shift - Shift is the ultimate email client for managing Mail, Calendar, Drive, Slack, Asana, Jira, Evernote, and all your other favourite apps

Cloudinary - Cloudinary is a cloud-based service for hosting videos and images designed specifically with the needs of web and mobile developers in mind.

Mia for Gmail - A desktop email client for your Mac, without a browser !

Scikit Image - scikit-image is a collection of algorithms for image processing.

Mailplane - Mailplane is the best way to use Gmail on your Mac. Use an unlimited number of accounts, get new mail notifications, use plug-ins and much much more.