Whenhub Interface is a knowledge payment platform where users can find experts on any topic and pay for consulting services. In the interface, each consulting service will use the token 'When' to establish a smart contract, and also support Apple or Google payments. Experts can be full-time or use fragmented time for consultation. Consultation is done through video phone calls, and the consultant can make an appointment for a phone call. As more and more workers join the gig economy, the Whenhub Interface provides them with the opportunity to work and earn corresponding benefits during their comfortable time....