Cloud synchronization
Merge device-local records, then keep supported progress current across signed-in devices.
Optional account
Your progress, everywhere
Guest play stays fully available.Sign in only if you want cloud synchronization, a cross-device level, and an optional public profile. SumSpark does not require an account to play the Daily Game, Practice Lab, Math Workbench, or friend challenges.
Sign in with ChatGPTThis hosting platform currently supports ChatGPT sign-in only. Google and email magic links are not shown because they are not available for this Sites project.Global level
Earn retroactive XP from the Daily Game, Daily Challenge, Practice Lab, and friend challenges.
Optional public profile
Choose a username, avatar, frame, title, and whether anyone can view aggregate achievements.
Choose what fits
Guest play or optional sync
- Play every core mode
- Keep progress on this device
- No account required
- Merge supported progress
- Continue on signed-in devices
- Choose an optional profile