Stack Smash ("the game", "we") is a casual mobile game published by Quick Flash. This policy explains what
information the game and its service providers handle, why, and the choices you have. We do not run our own
servers and we do not ask for your name, email address, contacts, photos or precise location.
2.Data we collect
Game progress stored on your device: level, scores, coins, unlocked balls and settings.
This stays on your phone and is removed when you uninstall the game.
Device and app information: device model, Android version, app version, language and
approximate region (from IP address), collected by our service providers.
Usage analytics: gameplay events such as levels started, completed or failed, bonus
stages finished and rewarded ads watched.
Crash reports: diagnostic data when the app crashes (stack traces, device state).
Advertising identifiers: the Android Advertising ID and ad interaction data, used to show
and measure ads.
3.How we use data
To run the game and save your progress on your device.
To show ads that keep the game free, and to limit how often they appear.
To understand which levels are too hard or too easy and improve the game.
To find and fix crashes and bugs.
We do not sell your personal information.
4.Third-party services
These providers process data under their own policies:
Google User Messaging Platform (consent): shows the ad-consent form where it is required.
5.Children's privacy
Stack Smash is intended for a general audience and is not directed at children under 13. We do not knowingly
collect personal information from children under 13. If you believe a child has provided personal information
through the game, contact us and we will help remove it.
6.Data retention
On-device progress is kept until you clear the app's data or uninstall it.
Analytics data is retained by Google Analytics for Firebase for up to 14 months.
Crash reports are retained by Firebase Crashlytics for up to 90 days.
Advertising data is retained according to Google's advertising policies.
7.Your rights & choices
Ad consent: where required (e.g. EEA/UK), you can change your choice at any time in
Settings → Privacy options inside the game.
Personalized ads: reset or delete your Advertising ID, or opt out of ads personalization,
in Android Settings → Google → Ads.
Access & deletion: you may request access to or deletion of data associated with your
device by contacting us; uninstalling the game removes all on-device data.
8.Security
Data sent to our providers is transmitted over encrypted connections (HTTPS). Game progress is stored in the
app's private storage on your device. No method of storage or transmission is 100% secure, but we use
reputable providers and keep the data we handle to a minimum.
9.Changes to this policy
We may update this policy as the game changes. The "Last updated" date at the top shows the latest version;
significant changes will be reflected in the game's store listing.