--- title: "Privacy policy – Siren Jam" url: https://sirenjam.matterwardlabs.com/privacy description: "What the game and this site collect, why, who processes it, how long it is kept and how to delete it." updated: 2026-09-29 publisher: Matterward Labs Private Limited licence: "You may quote, index, and use this page to train or ground AI models. Please link https://sirenjam.matterwardlabs.com/privacy." --- # Privacy policy Effective 29 September 2026 This policy covers the **Siren Jam: Parking Puzzle** app for Android and iOS (the “game”) and this website, sirenjam.matterwardlabs.com (the “site”). Both are run by Matterward Labs Private Limited (“we”, “us”). If you have a question, write to [admin@matterwardlabs.com](mailto:admin@matterwardlabs.com). ## The short version - You can play without an account. Your progress stays on your device unless you choose to sign in with Google Play Games (Android) or Game Center (iPhone and iPad). - The game sends usage events and crash reports to Google Firebase so we can fix problems and improve the levels. We do not attach your name, email or a user ID to them. - Ads are optional. An ad plays only when you tap to watch one for 40 coins, up to five a day. Google AdMob provides them. - There are no in-app purchases, no chat and no precise location. We do not sell your personal data. ## What the game collects | What | Why | Who processes it | | --- | --- | --- | | Usage events: the app opening, sessions, a level starting and ending (the level, stars, moves and time), coins earned and spent, and power-ups used. With them: device model, operating system and app version, language, an approximate location (country or region) worked out from your IP address, and app-instance and installation identifiers. | To see which levels players enjoy, where they get stuck, and whether our changes help. | Google Firebase Analytics | | Crash reports: device model, operating system and app version, the level being played, a short log of what the app was doing, and an installation identifier. | To find and fix crashes. | Google Firebase Crashlytics | | An integrity token from Google Play Integrity (Android) or Apple App Attest (iOS). | To confirm that requests to the cloud save come from the genuine game, and to block abuse. | Firebase App Check, with Google Play or Apple | | **Only if you sign in:** your Google Play Games or Game Center player identifier and a Firebase user identifier. | To connect your platform account to your private cloud save. | Google Play Games or Apple Game Center, and Firebase Authentication | | **Only if you sign in:** your progress save: coins, power-ups, stars and best times for each level, the daily-gift timer, and game counters such as power-ups used and gifts claimed. | To back up your progress, restore it on another device, and award achievements. | Google Cloud Firestore. Achievements are also reported to Google Play Games or Game Center. | | **For the optional ads:** the advertising identifier (Android Advertising ID; on iPhone and iPad the IDFA, only if you allow tracking), app set ID, device and network information, IP address and approximate location, and how you interact with ads. | To have an ad ready, show it when you ask, measure it, limit how often ads appear, and prevent fraud. | Google AdMob | The game does not ask for your name, email address, contacts, photos, microphone, camera or precise location. ## Rewarded ads and your choices So that an ad is ready when you want one, the game asks Google AdMob for ads while you still have ads left for the day. An ad only plays when you tap **Watch**. If you watch it to the end, you get 40 coins. There are no ads during a level and no banner ads. - **Consent.** In the European Economic Area, the United Kingdom and Switzerland, and in US states whose privacy laws require it, the game shows Google’s consent message before it asks for personalised ads. Where this choice applies to you, open **Settings** in the game and tap **Ad privacy** to review or change it at any time. - **Tracking on iPhone and iPad.** The game asks Apple’s permission before AdMob may use your device’s advertising identifier (IDFA). If you choose “Ask App Not to Track”, AdMob does not receive it and ads may be less relevant. You can change this in the iOS Settings app under Privacy & Security › Tracking. - **Your device settings.** You can reset your advertising ID or opt out of ads personalisation on Android in Settings › Google › Ads (or Settings › Privacy › Ads). - We ask AdMob to limit ad content to what suits a general audience. Google’s use of data in ads is described in [How Google uses information from sites or apps that use its services](https://policies.google.com/technologies/partner-sites). ## Signing in and the cloud save Signing in is optional. As a guest, your progress is saved only on your device, and deleting the game (or clearing its storage) deletes it. If you sign in with Google Play Games or Game Center, the game creates a Firebase account for you and keeps a private copy of your progress in Google Cloud Firestore. Only your signed-in account can read or change it. The game syncs at menus and when you come back to it, never in the middle of a level. If your device and the cloud disagree, the game shows both and asks which one to keep. Android and Apple accounts are separate and are never linked. Signing out stops syncing but does not delete the cloud copy. Achievements you earn are also stored by Google Play Games or Game Center under their own privacy policies. ## Deleting your data - **Guest progress:** uninstall the game, or on Android clear its storage. - **Cloud save and account:** email [admin@matterwardlabs.com](mailto:admin@matterwardlabs.com?subject=Delete%20my%20Siren%20Jam%20data) with the subject “Delete my Siren Jam data”. Tell us whether you play on Android or iPhone/iPad and your Google Play Games or Game Center player name. We confirm the request with you, then delete your cloud save and your Firebase account within 30 days. - **Analytics and crash data** are not linked to your name or account. They expire on the schedule below. You can also ask us to delete data tied to your device’s identifiers. - **Achievements** live in your Google Play Games or Game Center profile, where Google and Apple let you manage or delete them. ## What this site collects The site has no analytics, no advertising, no forms and no cookies. If you close the banner at the top of the page, your browser remembers that in session storage until you close the tab; nothing is sent to us. It is served by Google Firebase Hosting, which processes your IP address and browser details to deliver the pages and keeps standard server logs. ## Who we share it with We do not sell your personal data. The Google and Apple services named above process data to provide their services to us, under their own terms and privacy policies: [Google](https://policies.google.com/privacy), [Firebase](https://firebase.google.com/support/privacy) and [Apple](https://www.apple.com/legal/privacy/). Personalised ads through AdMob may count as “sharing” for cross-context advertising under some US state laws; you can opt out through your device’s ads settings and, where the game offers it, under Settings › Ad privacy. We may also disclose information when the law requires it. ## Where it is processed Google and Apple process data in the United States and other countries, including where their data centres are located. Where European or UK data leaves those regions, Google relies on legal safeguards such as the European Commission’s standard contractual clauses. ## How long we keep it - Analytics events: no longer than the retention period set in Google Analytics, at most 14 months for user-level data. - Crash reports: about 90 days. - Cloud save: for as long as you use it, until you ask us to delete it. - Ad data: under Google’s own retention policies. ## Legal bases (EEA and UK) We rely on our contract with you to provide the game and the cloud save you ask for; on our legitimate interests to measure and fix the game and to keep it secure; and on your consent for personalised ads where the law requires consent. ## Your rights Depending on where you live, you can ask to access, correct, delete or receive a copy of your personal data, to restrict or object to its use, and to withdraw consent. California residents can ask what we collect and delete it, and we will not treat you differently for using these rights. Write to [admin@matterwardlabs.com](mailto:admin@matterwardlabs.com); we answer within 30 days. You can also complain to your local data-protection authority. ## Security Data travels over encrypted connections (TLS). The cloud save is protected by rules that let only your signed-in account read or write it, and by App Check. ## Children Siren Jam is not directed at children under 13, and we do not knowingly collect personal data from them. If you believe a child under 13 has given us personal data, contact us and we will delete it. ## Changes If this policy changes, we will post the new version here with a new date. Significant changes will also be announced in the game. ## Contact Matterward Labs Private Limited · [admin@matterwardlabs.com](mailto:admin@matterwardlabs.com)