37signals

We’re a privately-held Chicago-based company committed to building the best web-based software products possible with the least number of features necessary. Our products do less than the competition — intentionally. We’ve been in business since 1999 and love what we do.

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Basecamp 3
Free
Running your business on email, texts, and meetings.
iOS
Campfire
Free
Chat with your friends, clients, colleagues, and vendors.
Webware
Writeboard
Free
Write, share, revise, and compare text online.
Webware
Basecamp 2 for iPad
Free
This app works with Basecamp 2 (released March 2012) and Basecamp Classic (released February 2004) accounts.
iOS
Basecamp 2 for iPhone
Free
This app works with Basecamp 2 (released March 2012) and Basecamp Classic (released February 2004) accounts.
iOS
37signals Campfire
Free
This official Campfire app lets you use Campfire - the group chat tool from 37signals - right on your iPhone.NOTE: This app requires a 37signals...
iOS
Highrise
Free
Keep track of communications with your employees, business colleagues, and other contacts.
Webware