The DEF-ISL app makes learning of sign language easy, accessible and interesting. Packed with 50000+ easy-to-understand signs and phrases, in-built videos, illustrations, this easy to navigate app can be used both by adults and children who are deaf or hearing impaired. The customized mobile app is available for download on iOS and Android platforms. DEF-ISL offers the opportunity for all to learn sign language and thereby reach out to the deaf more easily. DEF is an organization made of the