← Cluo
Cluo

Privacy Policy

Effective October 30, 2026

The short version

  • Cluo doesn't collect your data. There's no account, and every puzzle is made and played on your device.
  • Your games, stats and settings stay on your device. We never receive them.
  • No ads and no tracking. Cluo has no advertising or analytics tools.

Cluo is a crossword and sudoku app made by Auvler Systems, based in Ontario, California (“we”, “us”). This policy explains what information Cluo handles. It applies to the Cluo app and to the Cluo pages on auvler.com.

1. What stays on your device

2. What we don't collect

Cluo has no account and no sign-in. It doesn't ask for your name, email, contacts, location, photos, camera or microphone, and it doesn't use identifiers for advertising. We don't track you across other apps or websites, and we don't sell or share any information.

3. App updates

To receive small updates without a new download from the App Store, the app checks Expo's update service (run by 650 Industries, Inc.) when it opens. Like any internet request, this shares basic technical information needed to deliver the update, such as your IP address, the platform and the app version. It doesn't include your games or anything about you.

4. Links

Settings has links to this policy, the terms and our support email. They open in your browser or email app, outside Cluo.

5. This website

These pages are served through Cloudflare and our own server. Like any website, they record basic technical information when you visit (IP address, date and time, the page requested) to keep the site secure and working. These logs are deleted on a rolling basis. The pages use fonts from Google Fonts, so your browser contacts Google to load them. We don't use cookies or analytics on these pages.

6. Email

If you write to us, we receive your email address and your message, and use them only to reply. We keep them as long as needed to help you.

7. Children

Cluo is suitable for all ages and doesn't collect personal information from anyone, including children.

8. Your rights

Because Cluo doesn't collect personal information, there's usually nothing for us to access, correct or delete. The data on your device is always under your control. If you've emailed us and want that message deleted, just ask. California residents have rights under the CCPA/CPRA; we don't sell or share personal information.

9. Changes

If this policy changes, we'll update the date at the top. If Cluo ever starts collecting information, we'll explain it here and in the app before it happens.

10. Contact

[email protected]
Auvler Systems · Ontario, California, USA