WinPrincess is a reputable online betting website. Login Argentina, Aruba, Barbados, Bahamas, Belize, Bermuda, Bolivia, Bonaire. The company was founded in and is based in Buenos. WinPrincess, online, sports Betting Casino, site in, tanzania, bonus Argentina (+54), Armenia (+), Aruba (+), Australia (+61), Austria. Register Login. ×. Winprincess | Online Casino | SportsBook in Tanzania. . It specializes in live dealer casino games as well as offers streaming services for iGaming operators. They offer a wide range of betting services, including sports betting, casino games, and virtual sports.