Last updated: September 2026
Grimtread is a location-based role-playing game. This policy explains what data the app collects, how it is used, and your rights regarding that data.
The app uses your device's GPS to measure walking distance and generate in-game encounters. Location data is processed on-device in real time and is never stored on our servers. If you have granted background location permission, tracking continues when the app is minimised so that walk sessions are not interrupted.
With your permission, the app reads the step and distance data your phone has already recorded: Motion & Fitness on iPhone, the step counter sensor on Android. This is what lets walking you did while the app was closed, or indoors where GPS cannot reach, still count towards your progress.
Your step counts are used on your device only and are never uploaded. What is saved is the distance they produce: your lifetime total, and a per-day record of how far you walked and which sensor measured it, kept for up to 400 days so the game can show your progress over time. Declining this permission simply turns the catch-up off; the rest of the game is unaffected.
Your in-game data is saved to Google Firebase Firestore so it can be restored if you reinstall or switch devices. This covers your level, experience, inventory, equipment, distance walked (lifetime and per day, as described above), and encounter history. This data is stored under a unique identifier (anonymous or linked to your sign-in account) and is not shared with third parties.
The app creates an anonymous account automatically when you first launch it. If you choose to sign in with Google or Apple, your display name and email address are used solely to identify your account and are not used for marketing or shared with third parties.
The app uses Firebase Crashlytics to collect crash reports. These reports include device model, operating system version, and app state at the time of the crash. No personally identifiable information is included.
The app uses Firebase Analytics to collect anonymised gameplay events such as encounters triggered, combat outcomes, and session length. This data helps us understand how the game is played and improve the experience. It is not linked to your identity and is not sold.
The app uses the following third-party services, each governed by their own privacy policies:
Your player data is retained for as long as you use the app. To delete your data, contact us at lapease32@gmail.com and we will remove your Firestore record within 30 days. You may also sign out and uninstall the app, which removes all locally stored data from your device.
Grimtread is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us and we will delete it promptly.
We may update this policy from time to time. The date at the top of this page reflects when it was last revised. Continued use of the app after changes constitutes acceptance of the updated policy.
Questions or requests regarding your data: lapease32@gmail.com