Privacy Policy

Last updated: October 31, 2026

This policy describes ClusterSum 1.1 and later. Earlier versions store gameplay progress locally and do not offer iCloud sync.

Overview

ClusterSum does not use third-party advertising or analytics SDKs, does not track you across apps or websites, and does not sell your personal information. No separate ClusterSum account is required.

Local game data

The app stores puzzle boards, Journey progress, Daily history, statistics, streaks, rewards, coin balances, preferences, and purchase transaction identifiers needed to prevent duplicate credits. Local recovery copies protect existing saves when upgrading and when first enabling sync. Haptics preferences remain specific to each device.

Optional iCloud sync

Sync is off until you enable it in ClusterSum Settings. If enabled, game progress, saved board versions, Daily history, statistics, themes, wallet transactions, and purchase-credit identifiers are stored in your private CloudKit database through Apple's iCloud service. Devices using the same iCloud account can sync these records. The app also retains migration snapshots so existing progress can be merged safely.

ClusterSum uses an app-generated installation identifier to distinguish board versions. An account identifier supplied by CloudKit is hashed and stored locally to detect account changes and avoid mixing saves. This is not an advertising identifier. Sync pauses if the iCloud account changes.

The developer does not operate a separate game-data server or use your private iCloud gameplay records for advertising or analytics. Apple provides the iCloud service under its own privacy practices and terms. Sync requires an iCloud account and connectivity. With sync enabled, spending coins requires a successful cloud update to protect the shared wallet.

In-app purchases

Optional coin purchases use Apple's StoreKit. Apple processes payments; the developer does not receive your full payment details or credit card number. Transaction identifiers and credited amounts are kept to prevent duplicate rewards and, when sync is enabled, to reconcile the shared wallet.

Support

If you email support, the developer receives the information you choose to send, such as your email address, device model, app version, description of the issue, and optional screenshots. Send only the information needed to investigate your request.

Retention and your choices

Without iCloud sync, game data remains on the device. Deleting the app removes its local game data. With sync enabled, an iCloud save can remain after uninstalling and can be used when you reinstall and enable sync with the same iCloud account. Manage iCloud storage through Apple's iCloud settings. Local recovery copies remain within the app's data container until that local data is removed.

You can leave sync off and play locally. Apple Account, iCloud, and purchase settings are managed through Apple. Contact support if you need help understanding stored game records or moving to another iCloud account.

Children's privacy

ClusterSum does not knowingly collect personal information from children for the developer. Optional iCloud and App Store services are subject to Apple's account and parental-control settings.

Changes and contact

Updates to this policy will be posted with a revised date. Questions: snake@snakejohns.com.