STK Smash
Help with Apple or Google sign-in, saved progress, rewards, country rankings, notifications, ads and purchases.
Contact STK Smash supportPLAY STK
Questions about your account, challenges, points, rewards, notifications or account controls.
Contact PLAY STK supportZUMORA Marble STK
Questions about gameplay, levels, performance, progress or a technical issue.
Contact ZUMORA supportContact CHESS STK support
Questions about chess matches, friend invitations, boards, piece collections or cosmetic rewards.
Contact CHESS STK support
Magic Match STK
Help with gameplay, ads, in-app purchases and data requests. No STK account is needed to contact us.
Contact Magic Match STK support
Scanner STK
Help with scanning, signatures, cloud storage, Chat STK, purchases, accounts and data requests.
Contact Scanner STK supportGeneral contact
For product information, business enquiries or anything else related to STK.
contact@exstk.comAccount deletion
PLAY STK and CHESS STK offer account deletion. Magic Match STK has no STK account; you can submit a data request from our deletion and data request page.
Account deletion