Privacy Policy — Stack Hop: Tower Blocks

Effective date: 15-October-2026

This privacy policy explains how Circumpolar Apps ("we", "us") handles information in the mobile game Stack Hop: Tower Blocks (the "App", package com.circumpolarapps.stackhop) on Android.

Summary

The App has no accounts and does not ask for your name, email or other contact details.
Your game progress is kept on your device. If Android backup is turned on, your phone may also back it up to your Google account, so it can be restored if you reinstall the App.
The App shows ads from Google AdMob, which collects some device information (explained below).
The App uses Google Analytics for Firebase to learn how the game is played (explained below).
If you sign in to Google Play Games, it keeps a copy of your progress in your Google account and puts your best results on the game's leaderboards (explained below).
Payments for in-app purchases are handled by Google Play. We never see your payment details.

1. Information stored on your device

The App saves your game progress on your device: scores, coins, unlocked characters and themes, powerups, mission and achievement progress, tutorial progress, purchase status and settings such as volume. We do not send this data to any server of ours, and we cannot access it. If you use Google Play Games, Google also keeps a copy of it (section 4).

Android backup. If backup is turned on in your device's settings, Android may copy this game data to your Google account using Google's backup service, so that it can be restored when you reinstall the App or move to a new phone. The backup is made, stored and protected by Google under its own privacy policy (policies.google.com/privacy); we cannot see it. You can turn backup off in your device's settings (for example Settings → Google → Backup or Settings → System → Backup, depending on the device), and manage or delete your backups in your Google account. Uninstalling the App or clearing its data deletes the copy on your device; a backup in your Google account is kept or removed by Google under its own rules.

Sharing. When you tap Share on a result, the App draws a picture of it on your device and opens Android's share menu with that picture, a short message and a link to the App's Google Play page. Nothing is sent unless you pick an app and send it yourself; what happens to it then is up to that app and the people you send it to. We do not receive what you share.

2. Advertising (Google AdMob)

The App shows ads through Google AdMob, an advertising service from Google LLC. To serve and measure ads and to prevent fraud, the AdMob SDK may collect and process:

your device's advertising ID (Android Advertising ID)
your IP address, which may be used to estimate your general location (such as your country)
device and app information, such as device model, operating system version, language, app version and network type
ad interaction data, such as which ads were shown or tapped
diagnostic data, such as crash logs and performance data related to ads

Google processes this data under its own privacy policy. Read more about how Google uses data from apps that use its services: https://policies.google.com/technologies/partner-sites
Google Privacy Policy: https://policies.google.com/privacy

Consent (EEA, UK and Switzerland). If you are in one of these regions, the App asks for your consent through Google's consent message before it shows personalized ads. You can change your choice at any time in Settings → Ad Privacy in the App.

Your controls. You can reset your advertising ID or opt out of personalized ads in your device's settings (Settings → Google → Ads or Settings → Privacy → Ads, depending on the device). Buying "Remove Ads" in the App turns off the forced ads. Optional rewarded ads, which you choose to watch for a bonus, may still be offered.

3. Game statistics (Google Analytics for Firebase)

To understand how the App is played and improve it, the App uses Google Analytics for Firebase, a service from Google LLC. It records how the game is used, not who you are:

gameplay events, such as runs and levels started and finished, the height and score reached, offers shown and taken, store visits and whether a purchase completed
app information, such as when the App was first opened, how long it is used, the app version, device model, operating system version, language and approximate country (from the IP address)
an app instance ID and your device's advertising ID, so Google can count returning players and link ad results to the App

The App does not send your name, contact details or payment details to Analytics. Google processes this data under its own privacy policy: https://policies.google.com/privacy and https://firebase.google.com/support/privacy

In the EEA, UK and Switzerland the App collects game statistics only if you consent to it in Google's consent message (to storing information on your device and to measurement, with Google as a partner). You can change your choice at any time in Settings → Ad Privacy in the App, and the change takes effect at once. You can reset your advertising ID in your device's settings at any time.

4. Google Play Games (saved game and leaderboards)

If you are signed in to Google Play Games on your device, the App uses it for two things:

a saved copy of your game progress in your Google account (the same game data as in section 1), so you can carry on where you left off on a new phone or after reinstalling. If your phone and the saved copy both have progress, the App asks you which one to keep.
leaderboards: your best towers in Classic (Normal and Hard) and Time Attack, and the stars you have earned in the levels, are sent to the game's leaderboards, where other players can see them next to your Play Games name and picture.

Signing in, the saved copy and the leaderboards are run by Google under its own privacy policy (policies.google.com/privacy). The App does not receive your email address. Who can see your Play Games profile and scores is set in your Play Games profile settings, and you can delete your Play Games data in the Google Play Games settings on your device. Reset Progress in the App's settings also replaces the saved copy with an empty one. If you are not signed in, none of this happens and your progress stays on your device only.

5. In-app purchases (Google Play)

Purchases are processed by Google Play. We do not receive or store your name, email address or payment card details. The App receives only what it needs to deliver your purchase, such as the product bought and a purchase confirmation from Google Play. Google's privacy policy covers Google Play: https://policies.google.com/privacy

6. Permissions

The App uses the Internet and network state permissions to load ads, send game statistics, process purchases and keep your Google Play Games saved game and leaderboards. The App's ad and analytics SDKs use the advertising ID permission (AD_ID). The App does not access your contacts, photos, camera, microphone or precise location.

7. How we use information

We do not collect personal information ourselves. The third-party services above process information only to show ads, measure them, prevent fraud, produce the game statistics we read, process purchases and run the saved game and leaderboards of Google Play Games. We do not sell your personal information.

8. Children's privacy

The App is not directed at children under 13 (or the minimum age in your country), and we do not knowingly collect personal information from children. Ads in the App are limited to content suitable for general audiences. If you believe a child has provided personal information through the App, contact us and we will help remove it.

9. Data security and retention

Game data stays on your device until you delete it, and, if Android backup is on, in your Google account's device backup until Google removes it or you delete it. A Google Play Games saved game and leaderboard scores are kept by Google until you delete your Play Games data. Google holds the data it collects for ads and purchases, and any backups, for as long as its own policies state. Game statistics are kept by Google Analytics for at most 14 months.

10. Your rights

Depending on where you live (for example under the GDPR in the EEA/UK or the CCPA/CPRA in California), you may have the right to access, correct or delete your personal information, or to object to or limit how it is processed. We do not keep personal information linked to you, so most requests are best sent to Google through the links above. You can also contact us and we will help where we can.

Deleting your data: the steps, and what is deleted and kept, are at circumpolarapps.github.io/privacypolicy/delete-data.html.

11. Changes to this policy

We may update this policy from time to time, for example when we add new features. Changes will be posted on this page with a new effective date.

12. Contact

If you have questions about this privacy policy, contact us at: circumpolarapps@gmail.com