. Winprincess | Online Casino | SportsBook in Tanzania. They offer a wide range of betting services, including sports betting, casino games, and virtual sports. 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. Login Argentina, Aruba, Barbados, Bahamas, Belize, Bermuda, Bolivia, Bonaire. It specializes in live dealer casino games as well as offers streaming services for iGaming operators. ×. Register Login. WinPrincess is a reputable online betting website.