MobileSign - The Workplace is a free British Sign Language lexicon app with over 1000 signs tailored for use in the workplace. If you work alongside deaf people, employ deaf people or have deaf customers then this is an ideal app for you. The app includes high quality videos accessed using a predictive search engine, you can use the app to create and manage your own lists of signs and the app will automatically keep a list of your recently viewed signs for repeat access later.