Terms of Service

Last updated: July 23, 2026

These Terms of Service ("Terms") are an agreement between you and Campcheck Interactive LLC ("Campcheck," "we," "us"), the maker of the Guitar Codex mobile application (the "App"), and they govern your use of the App. By downloading, installing, or using the App, you agree to these Terms. If you do not agree, please do not use the App.

1. The App

Guitar Codex is a guitar learning and reference application for mobile devices. It provides tools including a chromatic tuner, metronome, chord and scale libraries, an interactive circle of fifths, and instructional lesson content. Some features are free; others are unlocked through a one-time in-app purchase (see "Purchases" below).

2. License

We grant you a personal, non-exclusive, non-transferable, revocable license to use the App for your own non-commercial use, subject to these Terms. If you obtained the App from Apple's App Store, your use is also subject to Apple's Licensed Application End User License Agreement. You may not copy, modify, reverse-engineer, resell, or redistribute the App or its content except as permitted by law.

3. Purchases

The App offers optional one-time purchases to unlock additional features and lessons. All purchases are one-time and permanent — Guitar Codex does not offer, and will never charge, a recurring subscription.

Purchases are processed by Apple (App Store) or Google (Google Play), depending on where you downloaded the App. We do not collect or store your payment information.
Prices are shown in the App before purchase and may change for future buyers.
Purchases can be restored on your devices via "Restore Purchases" in the App, subject to your store account's entitlements.
Refunds are handled by Apple or Google in accordance with their store's refund policy. We are unable to issue refunds directly.

4. Privacy

Guitar Codex does not require an account and does not collect personal information unless you choose to send it to us (for example, through the optional in-app feedback form). Your settings and progress are stored locally on your device.

The tuner uses your device's microphone to detect pitch in real time. Audio is processed on-device only — it is never recorded, stored, or transmitted, and microphone access is released when you leave the tuner. Purchase and entitlement handling is performed by the app store and our payment provider (RevenueCat) in accordance with their respective privacy policies. For full details, including how the in-app feedback form works, see our Privacy Policy.

5. Feedback You Send Us

The App includes an optional feedback form. Anything you submit through it is voluntary. By submitting feedback, you grant us the right to use it — including ideas and suggestions — to operate and improve the App, without any obligation or compensation to you. Please don't include sensitive personal information in feedback.

6. Educational Content

Lesson and reference content is provided for general educational purposes. While we aim for accuracy, music theory and technique can be taught in different valid ways, and we make no guarantee that the content is complete, error-free, or suitable for any particular goal.

7. Disclaimers

The App is provided "as is" and "as available," without warranties of any kind, whether express or implied, including fitness for a particular purpose and non-infringement. We do not warrant that the App will be uninterrupted, error-free, or free of harmful components.

8. Limitation of Liability

To the fullest extent permitted by law, Campcheck Interactive LLC and its members, managers, and employees shall not be liable for any indirect, incidental, special, or consequential damages arising out of or relating to your use of the App. Our total liability for any claim relating to the App shall not exceed the amount you paid for it.

9. Changes to the App and Terms

We may update, change, or discontinue features of the App at any time. We may also revise these Terms; when we do, we will update the "Last updated" date above. Your continued use of the App after changes take effect constitutes acceptance of the revised Terms.

10. Governing Law

These Terms are governed by the laws of the State of Colorado, USA, without regard to its conflict-of-law rules. Any dispute relating to these Terms or the App will be resolved in the state or federal courts located in Colorado, and you consent to their jurisdiction.

11. Contact

Questions about these Terms? Reach Campcheck Interactive LLC at hello@guitarcodex.app.