Headquarters is an iPhone app for Basecamp. It combines the ability to manage Basecamp with the feel of a Get Things Done app. According to the developers at Select Start, it's designed "from the ground up around productivity, relevance, and ease of use."
What's the difference between Lite and Pro versions?
Both apps are fully functional, but Lite gives you a great opportunity to "try-before-you-buy". The Lite dashboard still shows you items from all of your projects, but only allows you to explore a single project and add a single account. It's perfect for the Basecamp Free Plan.Why should I buy the Pro version?
Headquarters Pro ($4.99) is for anyone who has a paid Basecamp account. It has support for multiple accounts and projects, and additional features in the future like time tracking.
Support for time tracking and UI updates are coming to the app soon too.