Karachi: Two Karachi-based female software engineers have developed an Urdu speech therapy mobile application for mute people called ‘Bolotech’. According to media reports vocally-disabled people will benefit from this newly developed app in their speaking difficulties as pronunciation and training will be taught to them by mimicking facial expressions. Touted as the world’s first-ever speech therapy app for Urdu language, it is currently in the testing phase and will be rolled out to the public soon.