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Terms of Service

Effective Date: February 18, 2026

1. Acceptance of Terms

By accessing or using the FretGenius application on any platform (iOS, Android, Web) (the "Service"), provided by FretGenius ("we," "us," or "our"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not use the Service.

2. Description of Service

FretGenius is a guitar fretboard note training app designed to improve note recall speed and accuracy. The Service includes features such as practice modes (for example, Note Quiz), scored assessments (for example, Phase Check), visual feedback (for example, heatmaps), tuner tools, and microphone-based trainers. Some features may depend on platform, device support, instrument/tuning configuration, and subscription status.

3. Service Access and Pseudonymous Records

Core use of FretGenius does not require a traditional username/password account. However, we may create and maintain pseudonymous identifiers and service records to operate core features (such as progress sync, reliability, and subscription/support workflows).

4. License to Use the Service

Subject to your compliance with these Terms, we grant you a limited, non-exclusive, non-transferable, non-sublicensable, revocable license to download, install, and use the Service on devices you own or control, solely for your personal, non-commercial educational purposes.

5. Restrictions on Use

You agree not to:

  • Copy, modify, distribute, sell, lease, or create derivative works based on the Service or any part thereof.
  • Reverse engineer, decompile, or disassemble the Service, or attempt to discover its source code.
  • Use the Service for any illegal or unauthorized purpose.
  • Attempt to gain unauthorized access to our systems or networks.
  • Remove, obscure, or alter any proprietary notices (including copyright and trademark notices) on the Service.
  • Use the Service in any manner that could interfere with, disrupt, negatively affect, or inhibit other users from fully enjoying the Service, or that could damage, disable, overburden, or impair the functioning of the Service.

6. Intellectual Property Rights

The Service, including its visual interfaces, graphics, design, compilation, information, data, computer code (including source code or object code), products, software, features (like the specific implementation of the note quiz, scale visualizer, realistic fret spacing calculations), sounds, and all other elements of the Service ("Materials") are protected by intellectual property and other laws. All Materials contained in the Service are the property of FretGenius or our third-party licensors. Except as expressly authorized by us in these Terms, you may not make use of the Materials. We reserve all rights to the Materials not granted expressly in these Terms.

7. Third-Party Services

The Service relies on third-party providers, including analytics, error monitoring, subscription infrastructure, and app-store billing providers (for example, Sentry, PostHog, RevenueCat, Apple App Store, and Google Play). Your use of the Service acknowledges that these providers may process data as described in our Privacy Policy and under their own terms and policies.

8. Paid Subscriptions (FretGenius PRO)

Certain features are available only with an active FretGenius PRO subscription. Subscription purchases are offered through in-app purchase providers (Apple App Store and/or Google Play), and we may use RevenueCat to operate entitlement and subscription-management flows.

Pricing, billing period, trial availability, and other purchase terms are shown to you at the time of purchase in the app/paywall/store flow. Subscriptions may renew automatically unless canceled according to the applicable app-store terms.

You can manage or cancel subscriptions through your app-store account settings (and where available, through in-app customer center flows). Restore flows are provided for eligible purchases. Refunds, if any, are governed by the applicable app-store policies.

We may change subscription features, eligibility, or pricing from time to time, with notice where required by applicable law.

9. Microphone Features and Permissions

Some features require microphone permission (for example, tuner or microphone-based trainer experiences). If microphone permission is denied or revoked, those features may be unavailable. Audio processing for pitch detection is performed on-device as described in our Privacy Policy.

10. Disclaimers

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND NON-INFRINGEMENT.

WHILE WE STRIVE FOR ACCURACY IN MUSIC THEORY REPRESENTATION AND VISUALIZATION, WE DO NOT WARRANT THAT THE SERVICE WILL BE ACCURATE, COMPLETE, RELIABLE, CURRENT, ERROR-FREE, OR UNINTERRUPTED. WE DO NOT GUARANTEE THAT USING THE SERVICE WILL RESULT IN MASTERY OF ANY INSTRUMENT OR MUSICAL CONCEPT. YOU USE THE SERVICE AT YOUR OWN RISK.

11. Limitation of Liability

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL FretGenius, ITS AFFILIATES, DIRECTORS, EMPLOYEES, OR LICENSORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS OR REVENUES, WHETHER INCURRED DIRECTLY OR INDIRECTLY, OR ANY LOSS OF DATA, USE, GOODWILL, OR OTHER INTANGIBLE LOSSES, RESULTING FROM (a) YOUR ACCESS TO OR USE OF OR INABILITY TO ACCESS OR USE THE SERVICE; (b) ANY CONDUCT OR CONTENT OF ANY THIRD PARTY ON THE SERVICE (INCLUDING SENTRY, POSTHOG, REVENUECAT, APPLE, OR GOOGLE); (c) ANY CONTENT OBTAINED FROM THE SERVICE; OR (d) UNAUTHORIZED ACCESS, USE, OR ALTERATION OF YOUR TRANSMISSIONS OR CONTENT.

IN NO EVENT SHALL THE AGGREGATE LIABILITY OF FretGenius EXCEED THE GREATER OF ONE HUNDRED U.S. DOLLARS (USD $100.00) OR THE AMOUNT YOU PAID US, IF ANY, IN THE PAST SIX MONTHS FOR THE SERVICE GIVING RISE TO THE CLAIM.

12. Indemnification

You agree to defend, indemnify, and hold harmless FretGenius and its affiliates, officers, directors, employees, and agents from and against any claims, liabilities, damages, losses, and expenses, including, without limitation, reasonable attorney's fees, arising out of or in any way connected with your access to or use of the Service, or your violation of these Terms.

13. Changes to Terms

We reserve the right to modify these Terms at any time. If we make changes, we will provide notice of such changes, such as by posting the revised Terms within the Service or updating the "Effective Date" above. Your continued use of the Service after the revised Terms have become effective indicates that you have read, understood, and agreed to the current version of the Terms.

14. Termination

We may terminate or suspend your license to access or use the Service at any time, for any reason or no reason, including for breaching these Terms. You may terminate these Terms at any time by ceasing to use the Service and uninstalling the application. Upon termination, your license to use the Service will immediately cease. Sections 5, 6, 8, 10, 11, 12, 13, 15, and any other provisions which by their nature should survive termination shall survive termination.

15. Contact Information

If you have any questions about these Terms, please contact us at: support@fretgenius.app