R
- Language and environment for statistical computing and graphics.
OmniGraffle Pro
- Draw beautiful diagrams, family trees, flow charts, org charts, layouts, and (mathematically speaking) any other directed or non-directed graphs.
Eclipse
- Eclipse is a program that helps the users to develop integrated tools.
Google Chrome
- Explore the web using Google's super-fast browser.
Evernote
- Manage, share, and organize your important notes with ease.