Privacy Policy.

This Privacy Policy explains how Helder Pereira ("we", "I", "the developer") handles information in connection with the iOS game DropStack ("the App"), as published on the Apple App Store.

1. Who is the data controller

Helder Pereira

Porto, Portugal

Contact: heldermrpereira@gmail.com

2. Data we collect ourselves

We do not collect, store, or transmit any personal data on our own servers. The App has no backend.

The following information is stored only on your device in iOS UserDefaults and never leaves the device unless you reinstall:

• Best score
• Discovered tiers (gallery progress)
• Premium unlock state (mirrored from StoreKit)
• Selected language, theme, and difficulty
• Sound, music, and haptic preferences

Deleting the App removes all of this.

3. Data collected by third parties inside the App

Google AdMob (rewarded video ads)

The App uses Google AdMob to show rewarded video ads. AdMob may collect:

• Advertising identifier (IDFA) — only if you grant App Tracking Transparency permission. If you decline, AdMob serves contextual (non-personalised) ads.
• Approximate location (derived from IP address)
• Device information (model, OS version, language, network type)
• Ad interaction events

Google's data practices: https://policies.google.com/technologies/ads

AdMob app ID: ca-app-pub-2155196813580047~3625430175

Google User Messaging Platform (UMP)

Used to show the consent dialog required by GDPR / Apple ATT before any ad personalisation. Your choice is stored by UMP on the device.

Apple StoreKit

Premium purchases are processed by Apple. We receive only a confirmation that the purchase succeeded — never your payment details. Apple's privacy policy applies to that transaction: https://www.apple.com/legal/privacy/

4. App Tracking Transparency

On first launch the App asks for tracking permission via Apple's ATT prompt. The decision is yours and can be changed any time in iOS Settings → Privacy & Security → Tracking → DropStack.

5. Children

The App is not directed at children under 13. We do not knowingly collect data from children. AdMob is configured for a general audience. If you are a parent and believe your child has used the App, contact us and we will help.

6. Your rights (GDPR / CCPA)

We do not hold any personal data of yours on our side, so we have nothing to return, correct, or delete. You can:

• Reset all on-device data by deleting the App.
• Withdraw ATT consent at any time in iOS Settings.
• Reset the advertising identifier in iOS Settings.
• Request your ad-personalisation data from Google AdMob: https://safety.google/privacy/ads-and-data/

7. Changes

If this policy changes, the new version is published at this URL with a new effective date. Substantive changes will be communicated inside the App where reasonable.

8. Contact

heldermrpereira@gmail.com