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Privacy policy

Effective 1 August 2025 · Last updated 2 November 2026

In short: GTK apps collect no personal data. No analytics, no advertising, no crash reporting, no accounts. Everything runs on your device.

1. Introduction

This policy explains how we handle information in the following applications (each "the App") distributed through the Apple App Store:

  • GTK – Guitar Player's Toolkit
  • GTK – Ukulele Player's Toolkit
  • GTK – Banjo Player's Toolkit
  • GTK – Bass Player's Toolkit (upcoming)

It also covers any future applications in the GTK Player's Toolkit family, and this website.

2. Information we do not collect

We do not collect, store or process any personal information from users of the App. Specifically, the App does not collect:

  • Personal information such as your name, email address or phone number
  • Device identifiers or advertising identifiers
  • Location data
  • Usage analytics or crash reports
  • Audio recordings, photos, contacts or other content on your device

3. How the App works

The App works entirely on your device. It does not require an account or an internet connection. Where the tuner uses the microphone, audio is analysed on-device in real time to detect pitch, and is never recorded, stored or transmitted.

4. Third-party services

The App does not include any third-party analytics, advertising or crash-reporting services or SDKs.

5. Data storage

Your settings, preferences, favourites and custom chords are stored locally on your device. We cannot access them. If you share a custom chord, you choose where it is sent.

6. Contacting us

If you contact us by email, the in-app Contact Us option or the support form on this website, we receive the information you choose to send (such as your email address and message) and use it only to respond to you. We do not use it for marketing and do not share it with third parties, other than the email or form provider used to deliver the message.

7. Children's privacy

The App is suitable for all ages. Because we collect no personal information, we do not knowingly collect information from children under 13 (or the equivalent minimum age in your jurisdiction).

8. International users

Because no personal data is collected by the App, no personal data is transferred internationally through its use.

9. Your rights

Depending on where you live, you may have rights to access, correct or delete personal data held about you. As the App holds none, there is nothing to access or delete. If you have emailed us and want that correspondence deleted, contact us using the details below.

10. Security

Because data stays on your device, it is protected by your device's own security features, such as your passcode and encryption.

11. Apple App Store

Apple may collect information when you download or purchase the App. That collection is governed by Apple's privacy policy, not this one.

12. Changes to this policy

If our data practices change, we will update this policy, change the "Last updated" date above, and describe the change in the App Store release notes.

13. Legal compliance

This policy is designed to meet the requirements of the UK GDPR, the EU GDPR, the California Consumer Privacy Act (CCPA) and the Children's Online Privacy Protection Act (COPPA).

14. Contact us

Customer Essential
Station House, Station Approach, East Horsley, Surrey KT24 6QX, United Kingdom
Email: appsupport@gtktoolkit.com
Web: www.customeressential.com