In the app: open Settings → Delete my account and confirm. Your account, coins, progress, photo and sign-in links are deleted immediately and cannot be recovered.
Without the app: email support@sukeetech.com from the address you signed in with, or include your nickname, and we will delete the account within 7 days.
Deleted: account id, nickname, avatar, photo, sign-in identities, coins, purchases of in-game items, stats, missions, badges, leaderboard entries and reports you sent. Backups that contain the account expire within 14 days. Crash reports expire within 60 days.