Privacy Policy

ChangeDA — Currency & Gold Rates Tracker · Last updated: March 13, 2026

1. Overview

ChangeDA ("the App") is a currency and gold rates tracker for the Algerian parallel market. This policy explains what data we collect, why, and how it is handled. We are committed to protecting your privacy.

2. Data We Collect

Data Type	Purpose	Shared With
Device Identifier (IDFA)	Personalized advertising (with your consent)	Google AdMob
App usage & interaction data	Analytics, app improvement	Firebase Analytics
Crash logs & diagnostics	Stability monitoring, bug fixing	Firebase Crashlytics
Push notification token	Sending rate change alerts	Firebase Cloud Messaging
Purchase history	Subscription management, ad removal	Adapty (via Apple StoreKit)

3. Advertising & Tracking

The App displays ads through Google AdMob. On first launch, you are asked for permission via Apple's App Tracking Transparency (ATT) framework to enable personalized ads.

• If you allow tracking: Your device advertising identifier (IDFA) is shared with Google to serve ads relevant to your interests.
• If you deny tracking: You will still see ads, but they will not be personalized. No cross-app tracking occurs.

You can change your tracking preference at any time in Settings > Privacy & Security > Tracking on your device.

4. Push Notifications

The App may request permission to send push notifications for rate change alerts. Your device token is registered with Firebase Cloud Messaging (FCM) solely for delivering these notifications. You can disable notifications at any time in your device settings.

5. In-App Purchases & Subscriptions

The App offers optional subscriptions managed through Adapty and Apple's StoreKit. Purchase transactions are processed by Apple. Adapty receives anonymized transaction data to manage subscription status and entitlements. No payment details (credit card numbers, billing address) are collected or stored by us.

6. Third-Party Services

The App uses the following third-party services, each with their own privacy policies:

• Google AdMob — Advertising
• Firebase — Analytics, Crashlytics, Cloud Messaging, Firestore
• Adapty — Subscription management

7. Data Retention

Analytics and crash data are retained according to the default retention periods of Firebase (typically 14 months for Analytics, 90 days for Crashlytics). Push notification tokens are retained as long as notifications remain enabled. We do not maintain user accounts or store personal information on our servers.

8. Children's Privacy

The App is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us and we will delete it promptly.

9. Your Rights

You may:

• Opt out of personalized ads via device Settings > Privacy & Security > Tracking
• Disable push notifications via device Settings
• Request deletion of your data by contacting us

10. Changes to This Policy

We may update this policy from time to time. Changes will be reflected on this page with an updated date. Continued use of the App after changes constitutes acceptance.