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Back to legal registry LEGAL DOCUMENT VI

Sublet

Privacy Policy

Version
1.0.0
Last updated
21 Sep 2026
Contact
contact@ryleth.dev

Last updated: 21 September 2026

This English document is a translation of the Vietnamese original. Where the two differ, the Vietnamese version governs.

This privacy policy describes how Sublet (hereinafter the “App”, “we”, “us”, or “our”) collects, uses, and protects your information. Sublet is built on a privacy-first philosophy: the App works entirely offline, has no account system, and all of your subscription data is stored locally on your device. We are committed to complying with Apple App Store and Google Play Store data protection requirements.

1. Information We Collect

1.1. Data Stored Locally on Your Device

Everything you enter into the App is stored on your device only, including:

  • Subscription details: name, price, currency, billing cycle, category, notes, and icon (if you choose a custom photo).
  • Your manually entered exchange rates and their last-edited timestamps.
  • App settings: base currency, reminder lead time, theme, and language.

This data is never sent to any server operated by us. We run no servers that store user data and have no ability to access your data.

1.2. Non-Personal Data

We collect no personally identifiable information (PII). The App contains no analytics, no remote measurement, no advertising, and no third-party tracking SDKs.

2. How We Use Your Information

Data on your device is used solely to operate the App’s features:

  • Subscription tracking: Displaying your subscription list, spending totals converted to your base currency, and the billing calendar.
  • On-device analysis: Computing the efficiency score, detecting redundant subscriptions, and generating recommendations — all calculations happen on your device using transparent, documented rules.
  • Reminders: Scheduling local notifications ahead of billing dates. Notifications are handled by your device’s operating system and never pass through our servers.
  • We do NOT sell, rent, monetize, or share your personal data with third parties for advertising or marketing purposes.

3. Third-Party Services

The App uses the following third-party services only when you actively use the related feature:

  • Apple iCloud (optional sync): If you enable iCloud Sync, the App stores a backup of your data (subscriptions, bills, exchange rates) in your personal iCloud container. This data is processed by Apple under Apple’s privacy policy, belongs to your iCloud account — we hold no keys and cannot read it. You can disable sync at any time in the App’s Settings.
  • RevenueCat (purchase management): If you purchase Sublet Pro, the transaction is processed by the App Store or Google Play, and RevenueCat is used to verify entitlement status using an anonymous identifier generated by RevenueCat. RevenueCat does not receive your name, email, or subscription data. Please consult RevenueCat’s privacy policy for details.
  • Apple App Store / Google Play: The distribution and payment platforms, which handle payment information under their own policies. We never receive your payment information.
  • Share and export (optional): When you actively use the JSON backup export or sharing feature, your device’s operating system handles it according to your choices.

Beyond the cases above, the App makes no network connections involving your data.

4. Camera and Photo Library Permissions

If you choose to set a custom photo as a subscription icon, the App requests access to your device’s camera or photo library. This permission is entirely optional: the photo is used only to create an icon stored on your device, is never sent anywhere, and you can deny it while still using every other feature.

5. Data Deletion

Because all data lives on your device, you are in full control:

  • Delete individual subscriptions directly within the App.
  • Delete everything: Uninstalling the App permanently removes all locally stored data. The demo dataset can be cleared with one tap in Settings.
  • Delete the iCloud backup: Turn off iCloud Sync in the App, then delete the sublet-backup.json file via your device’s iCloud storage management (Settings → [Your Name] → iCloud → Manage Storage → Sublet).

6. Children’s Privacy

The App is not directed at children under 13, and we do not knowingly collect any personal data from children. Because the App collects no user data, no child data is collected during use.

7. Changes to This Policy

We may update this privacy policy when necessary to reflect changes in the App’s features or legal requirements. All updates are published directly on this page with a revised date. Your continued use of the App after changes are posted constitutes acceptance of the updated policy.

8. Contact Us

If you have any questions about this privacy policy, please contact us at: