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  • Privacy Policy

    Effective date: September 30, 2026

    Snapemu is a retro game emulator that runs on your personal device. To us, the best privacy practice is to know as little about you as possible — this policy is an honest statement of that principle. Please read this policy carefully before using the Snapemu app (the "App") or visiting snapemu.gavinliu.cn (the "Website").

    1. Who we are

    This policy is published by the developer of Snapemu ("we" or "us"), an independent developer. If you have any questions or requests regarding this policy, please email us at snapemu@gavinliu.cn.

    2. Your games and saves belong to you

    Snapemu has no account system and no cloud sync. The following data is stored only on your device. We run no servers that store it, and therefore cannot access it:

    • The game files (ROMs) and BIOS files you import;
    • Your saves, backup files, and play history;
    • Your personal settings (video, controls, appearance, and more).

    Uninstalling the App deletes all of this local data.

    3. Information we collect

    Subject to this policy, the App collects limited information in the following ways.

    1. Diagnostic data (Firebase Crashlytics)

    The App integrates Firebase Crashlytics, a crash reporting service provided by Google. When the App crashes or encounters an error, it sends:

    • Crash stacks and error logs;
    • Device model and operating system version;
    • App version and the time of the crash.

    This data is used solely to identify and fix problems. We do not upload any user identifier, game file, or save content.

    2. Anonymous usage analytics (Google Analytics for Firebase)

    The App integrates Google Analytics for Firebase to understand how features are actually used. It sends:

    • A randomly generated app instance ID (not your name, email, or other direct identifiers);
    • Event data (for example, app launches and usage of certain features);
    • Device model, operating system and app version, and system language;
    • Country- or city-level approximate location derived from your IP address.

    This data is used to improve the product. We have not enabled any advertising features: no advertising identifiers are collected for ad personalization, and no cross-app tracking takes place.

    3. Premium in-app purchases

    Premium is purchased through in-app purchases on the App Store or Google Play. The purchase is processed by Apple or Google. We never see your payment account, card details, or other payment information; the system only reports whether the purchase succeeded, along with the in-app receipt used to restore purchases.

    4. The Website

    The Website consists of static pages: it uses no cookies, no analytics, and no advertising services, and stores no identifiers in your browser. Our hosting provider may automatically record standard access logs (such as IP address, time of access, and browser type) for security and operations purposes.

    4. What we do not collect

    • Your name, email address, phone number, or other direct identifiers — we only see your email address when you email us first;
    • Any content from your game files or saves — they never leave your device;
    • Precise location information;
    • Advertising identifiers.

    We do not sell your data, and we do not accept advertising SDKs.

    5. How we use information

    InformationPurpose
    Diagnostic dataIdentifying and fixing crashes and errors
    Anonymous usage analyticsUnderstanding feature usage and improving the product
    Purchase receiptsVerifying and restoring Premium purchases

    We do not use this information for profiling, automated decision-making, or advertising.

    6. Third-party services

    ServiceProviderPurposePrivacy policy
    Firebase CrashlyticsGoogleCrash diagnosticshttps://firebase.google.com/support/privacy
    Google Analytics for FirebaseGoogleAnonymous usage analyticshttps://policies.google.com/privacy
    App Store / Google PlayApple / GoogleDistribution and in-app purchaseshttps://www.apple.com/legal/privacy/ / https://policies.google.com/privacy

    Except as described above or required by law, we do not share your information with anyone.

    7. Data storage and retention

    • Local data is stored on your device and is deleted when you uninstall the App;
    • Diagnostic and analytics data is stored by Google on its service platforms in accordance with its data retention policies; the exact period depends on Google's documentation and the service configuration for your device;
    • We operate no servers of our own that store this data.

    8. International data transfers

    The third-party services described in Section 3 (including Google's Firebase services and the App Store / Google Play) may process the relevant data outside mainland China, primarily in the United States. For users in mainland China, we disclose this cross-border processing here.

    Where your local law imposes additional requirements on international transfers (for example, transfer mechanisms under the EU General Data Protection Regulation), the relevant third-party services rely on their own compliance arrangements (for example, Google's certification under the EU–US Data Privacy Framework).

    9. Your rights

    Depending on the law that applies where you live — including the Personal Information Protection Law of the People's Republic of China, the EU General Data Protection Regulation, and California privacy laws — you may have some or all of the following rights:

    • To access and obtain a copy of your personal information;
    • To correct or complete inaccurate or incomplete information;
    • To delete your personal information;
    • To withdraw consent (without affecting the lawfulness of processing before withdrawal);
    • To object to or restrict certain processing activities.

    How to exercise them:

    • Local data: view, export, or delete it on your device at any time; uninstalling the App deletes all of it;
    • Diagnostic and analytics data: this data is processed by Google within its services. You may email us with a request and we will do our best to assist, or contact Google directly. If the App's settings include a switch for analytics data, you can turn it off at any time;
    • Contact us at snapemu@gavinliu.cn. We will respond as soon as we can, generally within 15 business days.

    10. Children's privacy

    Snapemu is not directed at children, and we do not knowingly collect personal information from children (generally, minors under 14 years of age). If you are a parent or guardian and believe a child has provided us with personal information, please email us and we will delete it promptly.

    11. Data security

    Data in transit between the App and the Website is protected with HTTPS/TLS, and data on your device is protected by the operating system's app sandbox. Because your games and saves never leave your device, we cannot access them — and therefore cannot leak them.

    12. Changes to this policy

    We may revise this policy as the product evolves. When we do, we will publish the new version on this page and update the effective date. If a change materially affects what we collect, why we collect it, or who we share it with, we will notify you in a more prominent way (for example, a notice inside the App) and seek your consent again where the law requires it.

    13. Contact us

    If you have any questions, comments, or requests about this policy or our handling of personal information, please contact us:

    We treasure every message and will reply as soon as we can.