Privacy Policy

Applies to the ChordPractice mobile app (the “Wren” practice app) for iOS & Android.
Effective date: June 23, 2026  ·  Last updated: June 23, 2026

We built ChordPractice to be private by design. We do not ask you to create an account, we do not ask you to fill out forms with personal information, and we do not operate any servers that collect or store your data. This policy explains what limited information the app handles, where it lives, and the rights you have. Please read it alongside the privacy policies of Apple and Google, who provide the platform services (iCloud, the App Store, and Google Play) that the app relies on.

1. Who is responsible for your data

The party responsible for the app is Sammy Eang, an individual developer. For any privacy questions or requests, contact us at hello@chordpractice.app.

2. What information the app handles

Information you create in the app

The app lets you create one or more local profiles. A profile may include a display name you choose (it does not need to be your real name), an emoji avatar and color you pick, and a randomly generated identifier used internally to keep profiles separate on your device.

The app also stores the content you generate by using it, such as your practice history, streaks and progress; chord/scale selections, custom presets and session settings; and app preferences (reminders, MIDI settings, theme). All of this is stored locally on your device and never leaves it unless you turn on iCloud sync or manually export it.

Information we do not collect

• Your real name, email address, phone number, or postal address (you are never asked to provide these to us);
• Your precise or approximate location;
• Your contacts, photos, calendars, or health data;
• Advertising identifiers or cross-app tracking identifiers;
• Payment card numbers or financial account details.

Microphone

The app does not record, store, or transmit any audio. Piano sounds you hear are produced from pre-recorded samples bundled with the app.

MIDI devices

If you connect a MIDI keyboard or controller, the app reads the notes you play in real time, on your device, to provide practice feedback. This input is processed in memory and is not stored as a recording or transmitted anywhere.

3. iCloud sync (optional)

If you enable iCloud sync, the app copies your profiles and practice data into your own private iCloud container, part of your personal Apple ID / iCloud account.

• This data is stored and managed by Apple under Apple's terms and privacy policy.
• It is associated with your Apple ID — not with any account held by us.
• We do not have access to your iCloud data. We cannot read it, copy it, or share it.
• Syncing lets you restore your data on another device signed in to the same Apple ID.

You can turn iCloud sync off at any time in your device settings or within the app. Managing or deleting data stored in iCloud is controlled by you through Apple.

4. Purchases

The app offers optional in-app purchases to unlock premium features.

• On iOS, purchases are processed by Apple through the App Store (StoreKit).
• On Android, purchases are processed by Google through Google Play Billing.
• We never receive, see, or store your payment information. That is handled entirely by Apple or Google under their own privacy policies.
• The app stores only a small local flag indicating whether premium features are unlocked on your device. To confirm and restore a purchase, the app asks Apple/Google whether your account holds a valid entitlement; the platform may return a transaction identifier used solely to verify your purchase and not linked by us to your identity.

5. Notifications

If you enable practice reminders, the app schedules local notifications on your device. These are generated and delivered on your device based on your own practice data and settings. We do not use a push-notification server, and no reminder data is sent off your device. You can disable notifications at any time in your device's system settings.

6. Exporting and importing your data

The app lets you manually export your progress to a file and share it using your device's standard share sheet, and to import such a file later. When you export or share a file, you control where it goes. Any data shared this way is handled according to the privacy practices of the destination you choose.

7. How we use information

Because your data stays on your device (or in your private iCloud account), we do not collect it centrally. The information handled by the app is used only to provide its core functionality (track practice, show progress, manage profiles and presets), sync to your own iCloud account when enabled, unlock and restore purchases, and deliver the reminders you choose to receive. We do not use your information for advertising, profiling, or sale to third parties.

8. Legal bases for processing (EEA / UK users)

To the limited extent we are considered to process personal data under the EU/UK GDPR, our legal bases are: performance of a contract (to provide the app and features you request, Art. 6(1)(b)); consent (for optional features you explicitly enable, such as notifications and iCloud sync, Art. 6(1)(a) — which you may withdraw at any time by disabling the feature); and legitimate interests (to keep the app working correctly and secure, Art. 6(1)(f)). Most data never reaches us, so in practice there is little or no personal data for us to process.

9. Sharing and disclosure

We do not sell, rent, or trade your personal information, and we do not share it with advertisers or data brokers. The only third parties involved are the platform providers whose services the app uses: Apple Inc. (App Store distribution, in-app purchases, and iCloud storage) and Google LLC (Google Play distribution and in-app purchases on Android). These companies act as independent providers under their own privacy policies. We may also disclose information if required by law or valid legal process — though in practice we hold essentially no personal data to disclose.

10. International data transfers

We do not transfer your data ourselves, because we do not collect it on our own servers. If you enable iCloud sync, Apple may store and process your iCloud data on servers located in various countries under Apple's safeguards and privacy policy. Similarly, Apple and Google may process purchase information internationally. Please review their policies for details.

11. Data retention

Your data remains on your device until you delete it — for example by deleting a profile, clearing the app's data, or uninstalling the app. Data you have synced to iCloud remains in your iCloud account until you delete it through the app or through Apple's iCloud controls. We do not retain copies of your data, because we never receive it.

12. Your rights

Depending on where you live, you may have rights under laws such as the GDPR (EEA), the UK GDPR, the CCPA/CPRA (California), Canada's PIPEDA, Australia's Privacy Act, and similar laws — including the right to access, correct, delete, port, or restrict processing of your personal data, and to object to certain processing.

Because your data lives on your own device and in your own iCloud account, you can exercise most of these rights directly:

• Access / portability: view your data in the app, or use the in-app export feature.
• Correction: edit profiles, presets, and settings in the app.
• Deletion: delete profiles or app data on your device, and delete synced data via the app or Apple's iCloud controls.

If you would like help, or believe we hold any personal information about you, contact us at hello@chordpractice.app and we will respond consistent with applicable law. You also have the right to lodge a complaint with your local data protection authority.

California notice. We do not sell or “share” (as defined under the CPRA) personal information, and we do not process it for cross-context behavioral advertising. We do not knowingly collect personal information from California consumers on our own servers.

13. Children's privacy

The app is intended for a general audience and is not directed to children under 13 (or the equivalent minimum age in your jurisdiction, such as 16 in parts of the EEA). We do not knowingly collect personal information from children. Because the app does not collect personal information on our servers, and any data stays on the device or in the user's own iCloud account, no personal information is gathered from children by us. If you are a parent or guardian with concerns, contact us at hello@chordpractice.app.

14. Security

We rely on the security protections built into your device's operating system and, where applicable, Apple's iCloud and Apple/Google's purchase systems. Data stored on your device is protected by standard app sandboxing and any device passcode/biometric protections you have enabled. No method of storage or transmission is 100% secure, but because we do not transmit your data to our own servers, the surface area for exposure is minimal.

15. Third-party services and acknowledgements

The app is built with Expo / React Native and includes bundled assets such as the Salamander Grand Piano V3 samples by Alexander Holm (CC-BY 3.0). The platform services above are governed by their own privacy policies: Apple and Google.

16. Changes to this policy

We may update this policy from time to time — for example, if we add features. When we do, we will revise the “Last updated” date above and, where appropriate, provide notice within the app or on this page. Your continued use of the app after an update means you accept the revised policy.

17. Governing law

This policy is governed by the laws of the Commonwealth of Pennsylvania, United States, without regard to its conflict-of-laws rules. This does not deprive you of any mandatory protections available to you under the laws of your own country of residence.

18. Contact us

Sammy Eang
Email: hello@chordpractice.app