No real-time tourist guide for on the spot booking facility available in the market right now.
GUIDERATNA TRAVEL & TOURISM: An app based platform that pairs solo and group travelers with local tourist guide
Travelers through the app can view, in real time, how many guides are available at particular tourist place (say at Victoria Memorial in Kolkata). Tourists can view the back-ground details of the guide like M/F, age, qualification, languages spoken, licensed/non licensed, etc. Travelers also have the ability to select and book guide as per preferred hourly basis.