SpecFlow is a behavior-driven development tool for .NET that uses the Gherkin syntax. It allows users to write automated tests for mobile applications in a natural language format. SpecFlow+ is the commercial test runner product from TechTalk that supports running SpecFlow tests across different target environments. The benefits of SpecFlow include formulating tests in a problem domain language for easier customer discussion, writing reusable steps, and writing platform-independent scenarios for multiple test feedback.