Privacy Policy

Last updated: September 22, 2026. This policy covers all GridPaw games (Shikaku, Akari, and Pictomino) on gridpaw.com.

Overview

GridPaw is a collection of free logic puzzle games. We are committed to protecting your privacy. This policy explains what data we handle and how.

Data We Do NOT Collect

GridPaw does not collect, store, transmit, or share any of the following:

• Financial or payment information
• Location data
• Browsing history
• Health information

Local Storage (No Account Needed)

By default, all game data is stored locally in your browser using localStorage. This includes:

• Your current puzzle progress and level
• Daily challenge streak and best times
• Game settings (sound preferences)

This data never leaves your device unless you choose to sign in. Clearing your browser data will erase this information.

Optional Google Sign-In

Signing in with Google is entirely optional. All games are fully playable without an account. If you choose to sign in, we collect and store only what Google shares after you approve:

• Your Google account name and profile picture (shown on the leaderboard)
• Your Google account email (used only to identify your account; never shown publicly)
• Your Google account ID (a random number Google uses to identify you to websites)
• Your game progress: current level, daily challenge streak, best streak, best time, and completion dates

We use this data for exactly one purpose: syncing your puzzle progress across devices and showing the daily leaderboard. We do not:

• Send you marketing emails or newsletters
• Sell or share your data with advertisers or data brokers
• Post anything to your Google account

Sign-in uses a secure first-party session cookie (mt_session) that contains no personal information — just a random ID. You can sign out at any time, which clears this cookie. To delete your account and all stored progress, contact us using the link below.

Anonymous Usage Analytics

To understand how the games are played and improve them, we record anonymous gameplay events (for example: a level was started, completed, or a hint was used). These events are linked to a random ID stored in a first-party cookie — not to your identity. We also use Google Analytics and Microsoft Clarity with the same anonymous approach. If you sign in, gameplay events remain anonymous and are still not linked to your account.

Chrome Extension

The GridPaw Chrome extension uses chrome.storage.local to store streak and puzzle stats locally. The extension:

• Does not collect any personal data
• Does not transmit data to external servers
• Does not use remotely hosted code
• Does not track your browsing activity
• Only accesses data on gridpaw.com to sync your puzzle progress

Third-Party Services

GridPaw is hosted on Cloudflare Pages. Cloudflare may collect standard server logs (IP address, browser type) as part of their normal hosting operations. For details, see Cloudflare's Privacy Policy.

Advertising

Some pages on GridPaw display ads served by Adsterra, a third-party advertising network. When ads are shown, Adsterra and its partners may use cookies or similar technologies to measure ad performance and, where permitted, to personalize the ads you see. This happens only on informational article pages — never inside the puzzle games themselves. For details on how Adsterra handles data, see Adsterra's Privacy Policy.

We also plan to display ads served by Google AdSense. Google and its partners use cookies (including the Google ad cookie) to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising via Google Ads Settings or www.aboutads.info. For details on how Google uses data when you use our partners' sites, see Google's Privacy & Terms — partner sites.

Children's Privacy

GridPaw does not knowingly collect any data from children under 13. The games are fully playable without any account, and sign-in is optional and intended for users 13 and older. The games are suitable for all ages.

Changes to This Policy

We may update this privacy policy from time to time. Any changes will be posted on this page with an updated date.

Contact

If you have questions about this privacy policy, or want to delete your account and stored progress, you can reach us at:

• Email: [email protected]
• Website: gridpaw.com