Privacy Policy

1. Who we are

Quizter ("we", "us", "the app") is a native Android quiz game developed and operated by an independent individual developer, not a registered legal entity. We do not maintain a separate registered business address. If you have questions about this Privacy Policy or about your data, you can contact us at vitaly.sotnik@gmail.com.

2. Scope

This Privacy Policy describes what information Quizter and the third-party services it uses collect, why, and what choices you have. It applies to the Quizter Android app only.

3. Information we collect

Quizter has no backend server of its own and does not require you to create an account. Core gameplay — questions, answers, your progress, and experience points (XP) — works fully offline: all quiz content is bundled with the app as local files, and all your gameplay data is generated, stored, and used entirely on your device (see §3.1). An internet connection is needed only for the features described below: displaying advertising (§3.5), sending analytics/crash-diagnostic events (§3.2, §3.3 — these degrade gracefully with no network available), delivering push notifications (§3.4), and — for users in the European Economic Area and the United Kingdom only — the one-time consent screen described in §5.

The information described below is collected either (a) directly by the app's own code and sent to Google Firebase, or (b) by the third-party advertising SDK, Appodeal, and the ad networks it mediates.

3.1 Information stored only on your device (not sent to us)

Profile information you enter: your display name, chosen avatar, and language preference. This is stored locally using Android's DataStore and is never transmitted off your device, including to our own analytics (see §3.2 — analytics events and user properties deliberately exclude your name and avatar). It may be included in Android's own device backup/transfer system (Google's Auto Backup / device-to-device transfer) where your device and Google Account settings support it, so that it can be restored automatically after a reinstall or device switch — this is Android platform functionality, governed by your own Google Account settings, not a transmission to us.
Game progress (current run, level reached, unlocked rank, experience points): stored locally the same way, with the same backup behavior.

3.2 Information collected by Firebase Analytics (Google)

We use Firebase Analytics to understand how players use the app (e.g., which onboarding steps are completed, which game mode is played, whether a run is finished or abandoned, whether rewarded ads are used to continue). This is aggregate product-usage data.

Events logged: tutorial_begin, tutorial_complete, level_up, onboarding_step_completed, mode_tutorial_shown, run_started, run_level_completed, run_finished, run_abandoned, ad_trigger_fired, rewarded_continue_used, custom_topic_tapped, push_primer_response, language_changed, name_changed, avatar_changed. These events carry only gameplay-shaped parameters (e.g. game mode, level number, whether an answer was correct, ad placement/type) — never your entered name or avatar.
User properties set: your current rank (e.g. "Rookie" through "Grand Quizter"), your app language, and whether you have ever played Hard Mode.
Automatically collected by the Firebase SDK itself (standard behavior of the Firebase Analytics SDK, not something our own code adds): device/app identifiers such as the Firebase Installation ID, general device and app information (device model, OS version, app version, language/locale), and your IP address, which Google uses transiently to derive coarse, city/region-level location and is not the same as precise GPS location — Quizter does not request Android's location permissions and does not collect precise GPS location.

3.3 Information collected by Firebase Crashlytics (Google)

If the app crashes or encounters certain errors, Firebase Crashlytics automatically collects a crash report to help us fix bugs. Based on what is actually written to the device by this SDK, this includes: a stack trace of the crash, device/app information (device model, OS version, app version), and device/install-scoped identifiers — a Firebase Installation ID and a Crashlytics installation ID — that let us tell crash reports apart without identifying you personally.

3.4 Information collected by Firebase Cloud Messaging (Google)

We use Firebase Cloud Messaging (FCM) to send push notifications, if you allow them. This requires a device-specific push registration token, generated by Google and tied to this app installed on this device, so we can address a notification to your device.

The content and sending schedule of push notifications themselves are still being designed (tracked separately); this section will be revisited if that design introduces any data collection beyond the push registration token described above.

3.5 Information collected by Appodeal and its advertising partners

Quizter shows ads (App Open / Native Banner / Rewarded / Interstitial) through the Appodeal SDK, which mediates a number of third-party ad networks. As required by Appodeal, we disclose here that Appodeal and/or the ad networks it works with collect:

Your IP address;
Your Advertising ID (Android's resettable advertising identifier);
Other technical/device information needed to serve and measure ads (e.g. device model, OS version, general/coarse IP-derived location, app version).

The exact list of ad networks (technically, "TCF vendors") that may process your data changes over time and is disclosed live, in the app itself, through Appodeal's consent screen and the "Privacy Options" row in Quizter's Settings (see §5 below). Rather than reproduce that list here (it would go stale immediately), we point you to:

Appodeal's own privacy policy, which explains what Appodeal collects and how, and links onward to its partner networks: appodeal.com/privacy-policy
The in-app "Privacy Options" control (§5), which lets you review/manage consent at any time.

The ad networks Appodeal currently mediates for Quizter are: Meta, AppLovin MAX, Unity Ads, Vungle, LevelPlay, Mintegral, Pangle, IAB, and BidMachine.

4. Why we use this information

To operate and improve the app's core gameplay experience.
To understand engagement (which features are used, where players drop off) via aggregate analytics.
To diagnose and fix crashes/errors.
To send you push notifications, if you've allowed them.
To show and measure advertising, which funds the app (Quizter is free, with no in-app purchases, and is entirely ad-supported).

5. Your choices and rights

Ad consent / "Privacy Options": Quizter includes a "Privacy Options" row in Settings that opens Appodeal's consent management screen at any time, letting you review or change your ad-related consent choices, including the US state privacy opt-out (CCPA/CPA/VCDPA-style "Do Not Sell or Share My Personal Information") required for Appodeal SDK 4.2+. If you're in the EEA/UK, Appodeal's consent screen (GDPR) is also shown automatically the first time ads would be requested.
Push notifications: you can allow or deny notification permission at the OS level (Android 13+) and change it any time in your device's app settings.
Advertising ID: you can reset or limit ad tracking via your device's own Google/Android settings (Settings → Privacy → Ads on most Android versions).
Local data: uninstalling the app removes the data stored on your device (§3.1), except to the extent Android's own Auto Backup/device-transfer system has stored a copy tied to your Google Account, per Android's standard platform behavior.
Your rights: the choices above (ad consent/opt-out, notification permission, ad ID reset, local data deletion via uninstall) are the practical controls available to you. Quizter is distributed globally without geographic restriction and does not collect personal information directly from you (no account, no PII fields — see §6), so this Policy describes those rights in general terms rather than citing any single jurisdiction's statute by name.

6. Children's privacy

Quizter does not have a minimum age requirement and is intended for a general audience. The app does not require account creation and does not collect personally identifiable information (such as your name, email address, or phone number) directly from you — the display name and avatar you optionally choose are stored only on your device (§3.1) and are not collected by us. The app's content consists of neutral, general-audience trivia questions. Because of this, Quizter does not implement COPPA-specific (or equivalent) age-verification or parental-consent mechanisms.

7. Data retention and international transfers

We do not operate our own servers or database — gameplay data lives on your device. Data sent to Firebase and Appodeal is retained and processed according to their own privacy policies and may be processed in countries other than your own:

Firebase (Google): policies.google.com/privacy
Appodeal: appodeal.com/privacy-policy

8. Changes to this policy

We may update this Privacy Policy from time to time. Any changes will be reflected in a revised version of this document. We do not currently provide active in-app notifications for changes to this Policy.

9. Contact us

Questions about this Privacy Policy: vitaly.sotnik@gmail.com.