Privacy Policy

MellowGrid Privacy Policy

Operator
Takumi Miyazaki
Last updated
September 26, 2026
Public version
https://mellowgrid-public.pages.dev/en/privacy/

1. Scope and on-device data

This policy applies to the iOS version of MellowGrid (the “App”), in-app purchases, advertising, online rankings, support, and related public-site pages. Third-party services are also governed by their providers’ policies.

Game progress, settings, local records, and information needed to resume play or verify results are generally stored on your device. MellowGrid does not currently require a separate MellowGrid user account. Local data may be lost if you delete the App, erase the device, or experience device failure. External requests for purchases, advertising, rankings, and support are processed separately from on-device storage.

2. Purchases

Every Gate is playable for free. Full Game is an optional, one-time, non-consumable purchase; purchasers do not receive ads and receive detailed weekly and overall rankings.

MellowGrid uses Apple’s App Store, StoreKit, and RevenueCat for Full Game purchases, purchase-status checks, and purchase restoration. Apple and RevenueCat may process purchase status, transaction identifiers, and information needed to verify purchase rights under their respective policies. MellowGrid does not ask you to enter, or directly store, payment-card or bank-account details.

3. Advertising and consent

Free users may receive interstitial ads during gameplay when the required conditions are met. Full Game purchasers do not receive ads.

The App uses the Google Mobile Ads SDK and Google User Messaging Platform (UMP). Depending on regional rules and your choices through consent messages, Privacy Choices in Settings, and iOS tracking permission, you may see personalized or non-personalized ads. You can change your advertising choices later. If consent information, network access, ad readiness, or other advertising processing fails, gameplay continues without being blocked. Third-party advertising services such as the Google Mobile Ads SDK may process device or advertising information for ad delivery, measurement, security, fraud prevention, and service operation under their respective policies.

On iOS, free users may be asked to permit use of a device advertising identifier to show more relevant ads and measure ad effectiveness. Denial or restriction does not block gameplay, purchases, or rankings.

4. Online rankings and deletion

The App provides online rankings. For both free users and Full Game purchasers, only information from naturally ended, completed runs is automatically sent to the ranking service. Manually discarded runs, runs overwritten by starting a new run, and incomplete scores are not sent.

Rankings process scores, reached progress, play start and completion times, action information and other technical information needed to verify results, and a pseudonymous ranking identifier and display name. Cloudflare and other services support ranking delivery and storage. You may choose a display name that other users can see. If you do not choose one, an automatically assigned name is shown. We do not require your real name or email address for registration. Do not include your own or anyone else’s personal information in a display name.

Free users see their own on-device best and Kingdom Benchmark top percentage. Full Game purchasers see their own rank and ratio plus detailed weekly and overall rankings. You can report an inappropriate display name from the rankings. We store the reporting and reported users, the reason, the display name at the time, and the time of the report to review it and take any necessary action. Information about users you block is stored only on your device and used to hide their display names in your rankings view. You can delete your ranking data in the App from Settings. Deletion removes your ranking data and display name then on record, along with reports you submitted and reports about your display name. It is not a permanent opt-out; a later completed run may be submitted again.

5. Support, changes, and contact

If you contact support, your email address, message, and optional attachments may be processed as needed to respond, maintain security, prevent abuse, and meet legal obligations. Email service providers’ policies also apply. Do not send authentication information, a full purchase receipt, payment details, or unnecessary technical information.

We may revise this policy when features, third-party services, laws, or operations change, and will update the Last updated date. For questions about this policy, privacy choices, gameplay, purchases, advertising, rankings, or ranking-data deletion, use “Contact support” in Settings or email mellowgrid.support@gmail.com.