Perfect mix of power and simplicity

Every team can use some help with project management and collaboration. The problem with most tools is that they are so complicated that nobody can figure out how to use them — or so underpowered that they are not worth it. Basecamp strikes the perfect balance, with just enough PM tools, just enough messaging tools, and just enough file sharing tools, all combined in a beautiful and easy-to-use package. The app works seamlessly across most platforms, keeping your whole team in synch. And Basecamp is updated frequently, meaning that the best tool keeps getting better.

djwhelan about Basecamp - Project Management, v3.2