Spinzaar Casino review by Real Players & Expert's Analysis of Spinzaar Casino's Login. Sign up · CasinoMentor · Online Casinos; Spinzaar. Log in or Sign up. To play, just load it on the browser of your tablet/smartphone and log in. . You can use the same account to log into both the versions of the casino - desktop as. Sign up for exclusive bonuses with a personal account! Sign up. Online Casinos.