Kaku Get the app

Privacy Policy

Last updated: June 12, 2026

Kaku (the “App”) is a Shikaku puzzle game for iOS developed by Gonzalo Fuentes (“we”, “us”). We care about your privacy and built the App to collect as little data as possible. This policy explains what is and isn’t collected.

The short version

There are no ads, we don’t sell your data, and we don’t track you across other apps or websites. Your game data is yours.

Data stored on your device

Your puzzle progress, settings, statistics and streaks are stored locally on your device. If you have iCloud enabled, some of this data (such as your daily results) is synced across your devices through Apple’s iCloud / CloudKit, tied to your Apple ID. This data is handled by Apple under your iCloud account and is not visible to us in an identifiable form.

Game Center

If you sign in to Game Center, your completion times, solved counts, streaks and achievements are submitted to Apple’s Game Center to power the leaderboards and achievements. This is governed by your Game Center settings and Apple’s privacy policy. You can disable Game Center at any time in iOS Settings.

Anonymous analytics

To understand how the App is used and to improve it, we collect a small number of anonymous, aggregated usage events using PostHog (hosted in the EU). Examples include when a game is started or completed and which difficulty was chosen. These events are not used to identify you and do not include your name, email, contacts, location or any sensitive information.

Purchases

Kaku offers a one-time “Kaku Pro” in-app purchase. Payments are processed entirely by Apple. We use RevenueCat to manage entitlements (whether you own Pro). We never receive or store your payment details, such as card numbers.

Children

Kaku is suitable for all ages and does not knowingly collect personal information from children.

Your choices & data deletion

  • Deleting the App removes all data stored locally on your device.
  • You can manage or delete iCloud data from iOS Settings → your Apple ID.
  • You can disable Game Center in iOS Settings.
  • To request deletion of any analytics data associated with your device, contact us at the address below.

Changes

We may update this policy from time to time. Material changes will be reflected by the “Last updated” date above.

Contact

Questions about this policy? Email gonzalofuentessansalvador@gmail.com.