Mobile app reward-discovery service GoClapp provides a new revenue model where developers pay small fees per new user and users earn rewards for using apps. In the first month since launching, GoClapp achieved higher activation and retention rates than industry standards. The startup is led by CEO and iOS developer Gonçalo Henriques, who has over 3 years experience and 50+ apps. GoClapp is seeking a $300,000 investment to expand its team and develop its user base and revenue in the first year.