Post any tools/apps/website you use for productivity. Also post any other useful apps. Here are mine:
Toggl - I use this for tracking the time I work on my map. (https://toggl.com/)
Wunderlist- Great app for to-do list. Available for PC and mobile devices.(https://www.wunderlist.com/ )
Pocket- Very useful for bookmarking articles and to read it later in phone (works offline). - https://getpocket.com
Reeder 3- RSS reader (works offline ) https://itunes.apple.com/in/app/reeder-3/id697846300?mt=8
Feedly - Another RSS reader
Newsify- Another RSS reader
CamScanner - Useful for scanning documents from phone. https://www.camscanner.com/
Trello- Keep track of your project