This program claims to do exactly what the basecamp does but for free and forever. This is what the representative told me:

“We get this question a lot and it’s hard for us to answer as we don’t want to reveal our future plans as far as how we will make money. But we promise you the service we provide right now will ALWAYS be free, it will ALWAYS be hosted on our servers, and there is NO catch. There won’t be ads, there won’t be hidden fees. Do you use facebook/linkedin/google and ask them if they are free for real? No. We are here to make a difference, and we’re very passionate about it!”

If anybody tries it let me know how it works out.