ClusterSum
Getting started help, gameplay guidance, and privacy policy for ClusterSum.
ClusterSum is a compact logic game built around a simple rule: each numbered group must contain exactly as many connected tiles as the number shows. This section collects the practical help you need to get into the game quickly, understand the puzzle loop, and review privacy details.
What This Help Section Covers
- Getting Started for the first puzzle, daily play, and the basic interaction model.
- How To Play for the number-cluster rule, hints, and strategy basics.
- Privacy Policy for data handling and in-app purchase details.
The Core Idea
If you can explain ClusterSum in one sentence, it is this: match the size of a connected group to the number on the tile.
That sounds simple, but the board can become surprisingly expressive once groups start interacting with one another.
What To Expect
- A calm, touch-friendly puzzle flow
- Daily play alongside longer progression modes
- Hints when you want them
- Lightweight sessions that are easy to finish and come back to later
If You Are New
Start with Getting Started. If you already know the basics and want a better feel for solving efficiently, move on to How To Play.
Product links
iCloud sync in version 1.1 and later
Enable Settings → iCloud Sync → Enable iCloud Sync on devices signed in to the same iCloud account. No separate ClusterSum account is needed. Enable it first on the device whose coin balance you want to keep: that device establishes the shared wallet. Other devices add their saved puzzles and Daily history without adding their old balances.
Journey progress, puzzle boards, Daily history, themes, and the shared coin wallet sync while ClusterSum is open. Haptics remain specific to each device. Play offline and use free hints as usual; with sync enabled, paid hints and streak protection require an iCloud connection. Earned rewards and purchases are reconciled without duplicate credits.
Use Sync Now to request an update and check the status and last-sync time. If both devices edited an unfinished puzzle independently, alternate saves are retained under Saved Board Versions. Finished boards and Daily completions are kept when saves merge. Local recovery copies are retained when sync is first enabled.