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Terms of Service

Fair terms that describe exactly what Etudia does today, protect your imported content, and set clear expectations for both of us.

Effective & last updated: August 21, 2026 · Version 1.0
Acceptance The Service Eligibility Your Content Curated Library Purchases & Billing Practice Disclaimers Availability Open Source Prohibited Uses Intellectual Property No Warranties Limitation of Liability Indemnification Termination Disputes & Arbitration Governing Law Changes to These Terms International Use General Contact

1. Acceptance of Terms

By downloading, installing, accessing, or using Etudia ("Service," "App"), you acknowledge that you have read, understood, and agree to be bound by these Terms of Service ("Terms"). If you do not agree, you must not use the Service.

Binding Agreement: These Terms constitute a legally binding agreement between you and Fuyu Labs LLC ("Fuyu Labs," "we," "us"). They should be read together with our Privacy Policy.

2. Description of Service

Etudia is a piano sight-reading practice tool for Apple devices, providing:

  • A curated library of public-domain classical repertoire and original practice studies, engraved as real music notation
  • A visual cursor that advances through the score in time with playback, tracked to each note's own written duration and your chosen tempo
  • A real sampled-piano audio preview of the score, on auto-play or manual step-through
  • The ability to isolate the right hand, left hand, or both
  • The ability to import your own MusicXML sheet music
  • A "Learn" section explaining music notation concepts by reference to real pieces in the library

What Etudia is not (yet): Etudia does not currently listen to your playing, accept MIDI or audio input, or grade your performance against the score. It is a visual and audio practice aid, not a performance-assessment tool. Any such capability, if introduced in the future, will be described here before it ships.

Personal Use: The Service is intended for personal, non-commercial practice and educational use.

3. Eligibility

Etudia does not require an account and is available to a general audience, including students practicing under a parent's or teacher's supervision. If you are under the age of majority in your jurisdiction, you should have a parent or guardian's permission to accept these Terms and make any in-app purchase.

4. Your Content

4A. Sheet Music You Import

You represent and warrant, for every file you import into Etudia, that:
  • You own it, it is in the public domain, or you otherwise have the legal right to use and store it for personal practice
  • Your use complies with applicable copyright and intellectual property law
  • It does not infringe any third party's rights and is not illegal or harmful content

Etudia does not inspect, review, or validate imported files for copyright status; determining whether your use is lawful is your responsibility. Imported files are processed and stored on your device only — see our Privacy Policy for details.

4B. Processing Limitations

  • Rendering and playback accuracy depend on the source file's own quality and structure; malformed or unusually complex MusicXML may render or play incorrectly.
  • Automatically inferred information (for example, best-guess instrument detection) is provided as a convenience and may be wrong — you're always shown a chance to confirm or correct it before it's saved.

5. Curated Library & Licensing

The underlying musical works in Etudia's curated library — compositions by historical composers such as Bach, Beethoven, Satie, Clementi, and Burgmüller — are in the public domain and are not owned by Fuyu Labs or anyone else. The specific digital engravings we've prepared from public-domain sources, along with any original studies and app software, design, and curated selections, are owned by Fuyu Labs LLC. You may use curated content for personal practice within the app; you may not extract, redistribute, or republish our specific engravings or original studies outside the app for commercial purposes.

6. Purchases & Billing

Etudia offers a free tier and an optional premium unlock (monthly, annual, or lifetime), billed entirely through Apple's In-App Purchase system. Pricing shown at checkout in the App Store is authoritative and may vary by region and change over time.

"Lifetime" access means access for the longer of (a) your natural life, or (b) five (5) years from the date of purchase, subject to the Service's continued technical feasibility. If a core feature becomes impossible to support due to a platform change outside our control, we may offer a pro-rated refund in lieu of continued access.

Refunds, cancellations, and subscription management are handled by Apple per its own policies — Fuyu Labs cannot directly process a refund on Apple's behalf.

7. Practice & Educational Disclaimers

Not a substitute for instruction: Etudia is a self-directed practice tool. It does not replace a piano teacher and makes no claim to.

No outcome guarantees: We make no warranty that using Etudia will result in any particular skill level, reading speed, or musical outcome.

Notation & audio accuracy: Curated pieces are re-engraved from source material by hand and cross-checked, but transcription errors are possible; the audio preview is a synthesized approximation of a piano, not a substitute for hearing the piece performed live.

8. Technical Limitations & Availability

Etudia depends on Apple's iOS/iPadOS platform and may be affected by OS updates, device compatibility, and App Store policy changes outside our control. We do not guarantee uninterrupted or error-free operation.

9. Open-Source Components

Etudia's notation rendering is powered by Verovio, used under the GNU Lesser General Public License v3.0. Its use does not transfer any of Etudia's own software, design, or curated content into that license — only Verovio itself remains governed by its own license terms. See our Privacy Policy §7 for details and a source link.

10. Prohibited Uses

You agree not to:

  • Import content you don't own or lack permission to use
  • Use the Service for any unlawful purpose or to infringe others' rights
  • Reverse-engineer, decompile, or attempt to circumvent the app's premium-unlock mechanism
  • Redistribute or resell access to premium features
  • Interfere with, disrupt, or attempt unauthorized access to the Service

11. Intellectual Property Rights

Etudia's software, design, original studies, and curated-library engravings are owned by Fuyu Labs LLC and protected by applicable intellectual property law, except for third-party open-source components (§9) and public-domain musical works (§5), which remain governed by their own status.

DMCA: If you believe content within Etudia infringes your copyright, contact synclively@gmail.com with sufficient detail to identify the work and the claimed infringement.

12. No Warranties

THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

13. Limitation of Liability

To the fullest extent permitted by law, Fuyu Labs LLC's total liability for any claim arising from your use of the Service shall not exceed the greater of (i) the amount you paid us in the 12 months preceding the claim, or (ii) USD $100. Fuyu Labs is not liable for indirect, incidental, consequential, or punitive damages.

14. Indemnification

You agree to defend, indemnify, and hold harmless Fuyu Labs LLC from claims, damages, or expenses arising from your use or misuse of the Service, content you import, your violation of these Terms, or your infringement of a third party's rights.

15. Termination

Your rights: You may stop using the Service at any time by deleting the app.

Our rights: We may suspend or restrict access for violation of these Terms, suspected fraud, or as required by law. Because Etudia has no account system, "termination" in practice means the app ceasing to function for you, e.g. via a future update — we have no ability to remotely disable a specific installation today.

16. Dispute Resolution & Arbitration

Binding Arbitration

Except for claims eligible for small-claims court, any dispute arising from these Terms or the Service shall be resolved by binding arbitration administered by the American Arbitration Association (AAA) under its Consumer Arbitration Rules, rather than in court.

Class Action Waiver: You and Fuyu Labs agree that each may bring claims against the other only in an individual capacity, not as a plaintiff or class member in any purported class or representative proceeding.

Opt-Out

You may opt out of this arbitration agreement by emailing synclively@gmail.com within 30 days of first accepting these Terms.

17. Governing Law

These Terms are governed by the laws of the State of California, without regard to conflict-of-law principles, except where mandatory consumer-protection law of your own jurisdiction provides greater protection, in which case that law applies to the extent required.

18. Changes to These Terms

We may modify these Terms; for material changes, we'll provide at least 30 days' notice via in-app notice and/or the contact email on file. Continued use after the effective date of a change constitutes acceptance.

19. International Use

Etudia may be used internationally, though primary support is provided in English. Nothing in these Terms limits any mandatory consumer-protection right you have under the law of your own country, including EU/UK withdrawal rights or guarantees under the Australian Consumer Law, which continue to apply where applicable.

20. General

Entire Agreement: These Terms, together with the Privacy Policy, are the entire agreement between you and Fuyu Labs regarding the Service.

Severability: If any provision is found unenforceable, the rest remains in effect.

No Waiver: Our failure to enforce a provision is not a waiver of our right to do so later.

21. Contact

Fuyu Labs LLC

General support: synclively@gmail.com

Legal notices: synclively@gmail.com

Effective upon your first use of Etudia · Last modified August 21, 2026 · Version 1.0

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