Terms of Use

1. Using Sparrow Sudoku

These Terms of Use govern your use of Sparrow Sudoku, provided by Asian Sparrow LLC (“we,” “us,” or “our”). Please read them before selecting the app's acceptance control. If you do not agree, do not accept or use the app.

The app is intended for people aged 13 and older. If you are below the age at which you can enter into this agreement where you live, ask your parent or legal guardian to review and agree to these terms with you. The app is not intended for children under 13.

The app's age-group setting controls access to advertising and purchase features. Choose an accurate age group. You can leave the choice unspecified and continue playing without ads or purchases. No birthdate is required.

2. Your license and responsible use

We grant you a limited, non-exclusive, non-transferable license to install and use the app for your personal, non-commercial entertainment, subject to these terms and applicable Google Play rules. The app, its artwork and other original materials remain owned by us or their respective licensors. Separate open-source license notices continue to apply to the components they cover.

Do not use the app unlawfully, distribute copies of our protected materials without permission, bypass purchase verification, or interfere with the app's services or other people's devices. These restrictions do not limit uses or rights that applicable law or an applicable open-source license permits.

3. Puzzles, progress and game rewards

Core puzzles can be played offline. Your puzzle, notes, settings, statistics, coins, themes and achievements are stored locally. There is no app account or cloud progress sync, and Android system backup is disabled. Clearing app storage, uninstalling the app, losing a device or a storage failure may remove progress. We cannot promise to recover local progress.

Coins are earned through play, have no cash value, cannot be withdrawn or exchanged for money, and are not transferable outside the game. They are used only for the game features described in the app.

Practice League opponents and rankings are simulated. They do not represent matches against real players, a public leaderboard or a real-world prize competition. Game statistics and scores describe puzzle activity; they are not health advice, a cognitive assessment or a promise of medical or educational outcomes.

4. Advertising and optional purchases

For players who select the 18+ age group, nonpersonalized ads may appear at an explicit transition after a completed puzzle. Ads and purchases remain unavailable to under-18 and unspecified age groups. The app's separate privacy choices govern eligible advertising requests.

Remove ads is a one-time purchase, not a subscription. Review the localized price and purchase details shown by Google Play before confirming. A valid Remove ads entitlement disables in-app ads. It does not purchase coins, guarantee permanent access to future services or transfer game progress between devices.

Google Play processes payment, and RevenueCat helps validate and restore the entitlement. Purchase and restoration require an internet connection and the Google Play account used for the purchase. Use Restore purchases in the app's Settings if needed. A cancelled, pending, refunded or revoked transaction may not grant or retain the entitlement; the app checks its verified status.

Refunds and other purchase remedies depend on applicable law and the relevant Google Play policies. See Google Play's refund information or contact us for help. Nothing in these terms excludes mandatory refund or consumer rights. Google Play transactions are also subject to the Google Play Terms of Service.

5. Privacy and your choices

Our Privacy Policy explains local game storage, advertising and purchase providers, support messages, and privacy requests. Accepting these terms is separate from making any advertising consent choice. It does not automatically grant optional advertising permissions.

You can change your age group and review available privacy options in Settings. To ask about information we control or request applicable access or deletion, email support@asiansparrow.com. Do not send passwords or full payment-card details.

6. Availability and service limits

We aim to provide a reliable puzzle game, but software can contain errors and services can be interrupted. We do not guarantee uninterrupted availability, compatibility with every device, or that every issue can be corrected. Advertising, payment verification and restoration also depend on third-party services and network access.

We may provide updates to fix issues, maintain compatibility or change features. We will respect applicable law and your rights in relation to paid features. Keep your app and device software current where possible.

To the extent permitted by law, the app is provided as available without additional guarantees beyond those expressly described or required by law. Nothing in these terms limits liability that cannot lawfully be limited, or excludes statutory guarantees, consumer remedies, or other mandatory rights. We do not require you to waive those rights or agree to mandatory arbitration.

7. Changes and stopping use

We may update these terms when the app or its operation changes. The effective date and version identify the current terms. We will provide notice of material changes and request renewed acceptance where required by applicable law.

You may stop using the app at any time. Uninstalling removes local progress and does not itself request a refund or erase records held by purchase providers. If you disagree with updated terms, you can stop using the app and contact us about any rights relating to a paid feature.

8. Contact us

For a purchase issue, include a Google Play order number or a receipt with sensitive details removed. For a game issue, include the app version, Android version and a short description.