Privacy Policy

At Colloca ("we", "our", or "us"), operated by developer tomcandev, we respect your privacy and are committed to protecting your personal data. This Privacy Policy explains how our mobile application (iOS and Android) and website handle information when you use our services.

1. Summary of Core Principles

• Offline-First Architecture: Your study targets, learning streaks, quiz history, and saved favorites are stored locally on your device.
• No Third-Party Advertising: We do not sell your personal data, track your activity across other apps, or serve targeted advertisements. Colloca does not collect or use an Advertising ID (AD_ID / IDFA).
• No Account Required: You do not need to create an account to use Colloca. Giving an email address is optional and only used to reply to issue reports you send.

2. Information We Collect and Process

Because Colloca is designed as an offline-first learning tool, we collect minimal data:

• On-Device Learning State: Learning progress, bookmarks/favorites, streak count, and daily review targets. This data stays entirely on your device and is not transmitted to our servers.
• In-App Purchases (IAP): Transactions are processed securely directly through Apple StoreKit (on iOS) and Google Play Billing (on Android) via RevenueCat. We do not receive, process, or store your credit card details. RevenueCat processes anonymous app user identifiers to validate subscription entitlements.
• User-Initiated Issue Reporting: When you voluntarily submit a report through the in-app flag button, we receive:
  • the reported collocation or quiz question, the reason you chose, and any notes you type; for quiz questions, the answer options shown and the option you picked;
  • technical details needed to reproduce the problem: platform, app version and build, operating system version, device model, how the app was installed (for example App Store, TestFlight or Google Play) and the version of the learning content;
  • your anonymous RevenueCat customer ID and whether Colloca PRO is active, so we can look into problems related to your subscription or purchase;
  • a random identifier created by the app on your device, so we can tell when several reports come from the same installation. It is not your Apple, Google, advertising or device hardware ID, and it is reset if you reinstall the app;
  • your email address, only if you choose to enter it, so we can tell you when the problem is fixed. The app remembers it on your device for your next report, and you can remove it at any time in Settings.
  Reports are sent over HTTPS to our server and are only used to review and correct the learning content.

3. How We Use Information

Any technical data processed is used strictly for:

• Providing and maintaining the core functionality of Colloca.
• Verifying your subscription status and unlocking PRO content.
• Troubleshooting technical defects and optimizing app performance.
• Reviewing issue reports, correcting content and, if you gave an email address, replying to you about your report. We never use it for marketing and never sell or share it.

4. Third-Party Service Providers

We work with trusted third-party services for essential infrastructure:

• Apple StoreKit & Google Play Billing: Manages subscription billing and renewal according to Apple and Google's standard privacy guidelines.
• RevenueCat: Provides secure server-side receipt validation for in-app subscriptions without storing personally identifiable financial data.

5. Data Retention and Deletion

Since your learning history is stored locally on your device, you can delete all your stored data at any time simply by deleting or uninstalling the Colloca application from your device, or clearing app storage in your device settings.

Issue reports are kept on our server for up to 12 months, then deleted. To have your reports and email address deleted sooner, email us from that address at the contact below and we will remove them.

6. Children's Privacy

Colloca does not knowingly collect personal identifiable information from children under the age of 13. If you believe that your child has provided us with personal information, please contact us immediately so we can take necessary actions.

7. Changes to This Privacy Policy

We may update our Privacy Policy periodically. Any changes will be posted on this page with an updated revision date. Continued use of the application after changes indicates acceptance of the updated policy.

8. Contact Us

If you have any questions, suggestions, or concerns regarding this Privacy Policy or your data, please contact:

tomcandev
Email: [email protected]
Website: https://colloca.tomcan.dev