Rational ClearCase is described as 'IBM® Rational® ClearCase® offers complete software configuration management' and is an app in the Development category. There are more than 10 alternatives to Rational ClearCase for a variety of platforms, including Windows, Linux, Mac, BSD and Haiku. The best alternative is Git, which is both free and Open Source. Other great apps like Rational ClearCase are Mercurial SCM (Free, Open Source), Apache Subversion (Free, Open Source), ZenTao (Freemium, Open Source) and CVS (Concurrent Versions System) (Free, Open Source).
Mercurial is a free, distributed source control management tool. It efficiently handles projects of any size and offers an easy and intuitive command line interface. Mercurial efficiently handles projects of any size and kind.
ZenTao is an open source project management tool, supporting Scrum. It integrates product management, project management, bug management and QA management, etc., covering all lifecycle of software development.
The Perforce Software Configuration Management System features comprehensive SCM capabilities built around a scalable client/server architecture. Users can access the Perforce Server through a range of Perforce client software.
Team Foundation Server (commonly abbreviated TFS) is a Microsoft offering for source control, data collection, reporting, and project tracking, and is intended for collaborative software development projects.
SourceAnywhere is a source control solution designed as Visual SourceSafe (VSS) replacement. It is VSS-style source control solution with good support for Visual Studio, Eclipse, Dreamweaver and other IDEs.