Code Review Bundle contains two separate tools: Review Assistant and Code Compare. Code Compare adds value to Review Assistant when tools are used together.Review Assistant is a code review plugin for Visual Studio. This tool helps you to create review requests and respond to them without leaving Visual Studio. Code Compare designed to compare and merge differing files and folders, which integrates with all popular source control systems: TFS, SVN, Git, Mercurial, and Perforce.Review Assistant leverages Visual Studio extension of Code Compare. The following features are available only when you use both tools:*Adding code review comments when comparing source file revisions.*Viewing added review comments from a file comparison document.*Highlighting of code regions with review comments.*In-place code review for external version control clients like TortoiseSVN.Code Compare Pro is the product edition that offers advanced features for source code comparison:*Three-way text comparison and merge tool.*Structured code comparison.*Automatic Files Merging.*Code outlining (folding).