Apps similar to RunaWFE Free include Bonita BPM, which is free and open source. Other options are Bizagi and Activiti. In total there are three Process Management Tools like RunaWFE Free for Windows, Linux and Mac.
Bonita BPM is a BPM-based application platform that is designed to help users build highly engaging, personalized business applications that can be continuously updated to adapt to business changes in real time.
France
EU
BizAgi BPM Suite supports the business process life cycle through modeling, execution, management and continuous improvement of process with the minimum amount of programming.
United Kingdom
Activiti is a light-weight workflow and Business Process Management (BPM) Platform targeted at business people, developers and system admins. Its core is a super-fast and rock-solid BPMN 2 process engine for Java.
