Kirby Project Hub is described as 'The solution for every freelancer who wants a quick and simple project management tool. You can keep track of the progress of a project with this client area for your website' and is an app in the Business & Commerce category. There are more than 10 alternatives to Kirby Project Hub for a variety of platforms, including Online / Web-based, iPhone, Android, Mac and iPad. The best alternative is Quire, which is free. Other great apps like Kirby Project Hub are Taiga.io (Freemium, Open Source), Basecamp (Freemium), Samepage (Freemium) and Podio (Freemium).
PHP Project Management. Similar to ActiveCollab and Basecamp, affordable alternative which includes Project Management, Collaboration, Documents, File Sharing, Mailing, Newsletters, Todo, Ticketing, etc. Check out the demo.