BW BW Innovation

RazielReveal

Terms of Use and End User License Agreement

Effective date: 14 August 2026

Last updated: 3 September 2026

These Terms of Use and End User License Agreement (the “Terms” or “EULA”) are a legal agreement between you and WANG PING-YAO (the “Developer,” “we,” “us,” or “our”) governing your download, installation, access to, and use of the RazielReveal mobile application and its related software, cloud-processing features, content, updates, documentation, and support services (collectively, the “App”).

By downloading, installing, accessing, or using the App, you confirm that you have read, understood, and agree to these Terms and the Privacy Policy. If you do not agree, do not download, install, access, or use the App.

1. Eligibility and authority

You must be legally able to enter into this agreement. If you use the App for an organisation, you represent that you have authority to bind that organisation, and “you” includes that organisation. If you are below the age at which you may lawfully consent to these Terms in your location, a parent or legal guardian must accept these Terms for you.

2. The App and its processing features

The App enables you to import or otherwise provide audio content and, depending on the feature you select and availability, process it either:

The App may generate output such as separated audio stems, including vocal, instrumental, lead-guitar and rhythm-guitar stems, and recognised musical information, including beats, downbeats, tempo, chords, melodies, lyrics, timestamps, MIDI-style note information, and song structure (collectively, “Outputs”).

Where offered, Cloud HQ stem separation is a premium, quota-based cloud-processing feature. It requires an App account and an active Premium entitlement, uploads your selected audio for server-side processing, and is subject to the account, quota, and third-party-service terms in Section 8.

Processing is probabilistic and may produce errors, omissions, artefacts, inaccurate transcriptions, incorrect lyrics or chords, or other imperfect results. Detection and recognition results—including beats, downbeats, tempo, chords, melodies, lyrics, timestamps, MIDI-style note information, and song structure—are not guaranteed to be accurate, complete, or suitable for any particular purpose. To the maximum extent permitted by applicable law, the Developer is not liable for any decision, action, or loss arising from reliance on those results. Outputs are tools for creative, educational, and personal workflow purposes; they are not authoritative metadata, a substitute for obtaining rights, or a guarantee that an audio work is public domain, cleared, or safe to use.

We may set reasonable technical, storage, duration, file-size, feature, concurrency, or fair-use limits for the App or cloud processing. We may change, suspend, or discontinue a feature when reasonably necessary for security, maintenance, legal compliance, or service operation.

3. Licence to use the App

Subject to your continued compliance with these Terms, the Developer grants you a limited, personal, revocable, non-exclusive, non-transferable, non-sublicensable licence to download, install, and use the App on Apple-branded devices that you own or control, solely for your personal or internal business use and only as permitted by the applicable Apple Media Services Usage Rules.

The App is licensed, not sold. Except for the limited licence expressly granted here, the Developer and its licensors retain all right, title, and interest in and to the App, its software, user interface, documentation, algorithms, trade secrets, branding, and other intellectual property. No implied licences are granted.

This EULA also applies to App updates and supplements unless they are accompanied by different terms. You may not distribute or make the App available over a network where it can be used by multiple devices at the same time, except to the extent the applicable Usage Rules expressly permit it. You may not transfer, redistribute, rent, lease, lend, sell, or sublicense the App. If you transfer an Apple device, you must remove the App from it before doing so, unless the applicable Usage Rules provide otherwise.

4. Your content and your responsibility for it

In these Terms, “Content” means every audio file, recording, musical work, lyric, sound recording, musical composition, performance, image, metadata, text, or other material that you import, upload, transmit, submit, or make available for processing through the App.

You represent and warrant that:

  1. you own the Content or have obtained all rights, licences, permissions, consents, and clearances necessary to process it through the App and to use the Outputs as you intend;
  2. your Content and your use of the App and Outputs do not and will not infringe, misappropriate, or otherwise violate any copyright, neighbouring right, database right, trademark right, trade-secret right, contract, privacy right, publicity right, moral right, or other right of any person;
  3. your Content and use of the App comply with all applicable laws, regulations, platform rules, and contractual restrictions; and
  4. you will not use the App to process content obtained from unauthorised sources, content protected by digital-rights-management controls, or content for which you lack the necessary rights.

You remain solely responsible for your Content, how you obtain it, your decisions to process it, your use of Outputs, and any distribution, performance, publication, commercial exploitation, or other use of Outputs. The Developer is not responsible for Content, Outputs, or how an Output is subsequently used by you or anyone else.

You grant the Developer a limited, non-exclusive, worldwide right to host, reproduce, transmit, and process Content and Outputs only as necessary to provide the App features you request, including cloud processing, Cloud HQ stem separation, storage, support, security, abuse prevention, and legal compliance. This permission includes providing the relevant Content to third-party cloud, authentication, entitlement, storage, payment, and processing providers acting for the Developer, solely to perform and support the App features you select. This permission ends when the relevant Content and Outputs are deleted from the applicable service, subject to limited backup, legal, security, and dispute-resolution retention described in the Privacy Policy.

5. Ownership of Content and Outputs

As between you and the Developer, the Developer does not claim ownership of your Content or Outputs. Subject to applicable third-party rights, you retain ownership of your Content and of any rights you may have in Outputs.

Your ownership, if any, in Outputs does not override the restrictions in Section 7, including the restriction on using Outputs generated by the lead-guitar or rhythm-guitar separation feature to develop, train, fine-tune, evaluate, benchmark, improve, or distil a model or service.

Nothing in these Terms grants you rights in underlying recordings, compositions, lyrics, performances, samples, or other third-party material embodied in Content or Outputs. Creating an Output does not clear, transfer, or waive any third-party rights. You are responsible for obtaining any permissions required for your intended use of an Output.

6. Models, open-source materials, and proprietary model weights

6.1 Third-party models and components

The App includes or may use third-party software, models, model weights, libraries, datasets, and other materials. Certain third-party models and components are made available under licences that permit commercial use. The Developer does not claim ownership of those third-party materials. They remain the property of their respective rights holders and are governed by their applicable licence terms, notices, and attributions, which may be provided in the App, its settings, or the Developer's third-party notices.

Nothing in these Terms removes rights that an applicable open-source or third-party licence directly grants to you. Conversely, these Terms do not grant you any right to a third-party component beyond the rights that its applicable licence provides.

6.2 Proprietary lead- and rhythm-guitar weights

The App includes proprietary machine-learning model weights used for lead-guitar and rhythm-guitar separation (the “Proprietary Guitar Weights”). The Proprietary Guitar Weights were trained using training data for which the Developer represents it has the appropriate rights or permissions to use for model training, on a Mel-Band RoFormer architecture (the “Mel-Band RoFormer Architecture”).

The Developer acknowledges that the Mel-Band RoFormer Architecture and any related third-party code remain subject to their respective licences and the rights of their respective holders. The Developer does not claim ownership of the Mel-Band RoFormer Architecture or third-party materials merely because the Proprietary Guitar Weights use or are compatible with that architecture.

To the fullest extent permitted by law, the Developer reserves all right, title, and interest in and to the Proprietary Guitar Weights, including associated checkpoints, converted weights, model files, configurations, optimisations, and confidential know-how. Your licence under Section 3 permits use of the Proprietary Guitar Weights only as embedded in and accessed through the App's ordinary user flow. It does not grant any right to access, copy, extract, download, export, redistribute, fine-tune, adapt, benchmark, train, host, offer as a service, or use the Proprietary Guitar Weights outside the App.

7. Restrictions

Except to the extent a restriction is prohibited by applicable law or an applicable open-source licence expressly permits the activity, you must not, and must not assist, permit, or encourage another person to:

  1. copy, modify, translate, adapt, create derivative works from, reproduce, distribute, publish, sell, lease, rent, sublicense, or otherwise exploit the App or any part of it;
  2. reverse engineer, decompile, disassemble, decode, attempt to derive source code from, or otherwise analyse the App binary, its libraries, security measures, file formats, or other non-public parts;
  3. extract, intercept, copy, export, scrape, download, reconstruct, de-obfuscate, bypass protections for, or use outside the App any model, model weight, checkpoint, configuration, asset, dataset, prompt, algorithm, secret, or other component of the App, including the Proprietary Guitar Weights;
  4. circumvent or interfere with technical protections, access controls, usage limits, licence checks, or cloud-service security;
  5. use Outputs generated by the lead-guitar or rhythm-guitar separation feature, or provide or make such Outputs available to another person, to develop, train, fine-tune, evaluate, benchmark, improve, or provide any machine-learning or other model or service, including through model extraction, distillation, synthetic-data generation, or dataset creation, where the activity is intended to replicate, substitute for, compete with, or derive benefit from the lead-guitar or rhythm-guitar separation capabilities of the Proprietary Guitar Weights;
  6. use the App to violate another person's rights, commit fraud, distribute malware, harass a person, evade law-enforcement or rights-management measures, or violate applicable law; or
  7. remove or alter copyright, trademark, licence, attribution, or proprietary-right notices.

8. Accounts, premium status, cloud quota, and payment

8.1 Accounts and cross-platform Premium status

The App may establish a guest account to provide account-linked features. You may create or sign in to a permanent account using an available sign-in method, such as email and password or Sign in with Apple. A permanent account can preserve the account identity associated with your current guest account; signing in to a different existing account does not automatically merge accounts.

You are responsible for providing accurate account information, protecting your credentials and device, and promptly notifying us of suspected unauthorised use. You must not share an account, sell or transfer an account or entitlement, create or use multiple accounts to evade quotas or other restrictions, or attempt to access another person's account.

When you use the same account on supported platforms, the App may use that account to synchronise verified Premium entitlement status and account-linked cloud features between iOS and Android. Synchronisation is subject to platform purchase validation, network availability, and third-party service operation, and may not be immediate. It does not transfer, duplicate, cancel, refund, or alter an underlying App Store, Google Play, or other platform purchase, which remains subject to that platform's terms and billing rules.

8.2 Cloud HQ stem separation and quota

Cloud HQ stem separation is available only when the App confirms an active Premium entitlement, an eligible account, available quota, and service availability. You must select the source audio yourself and have all rights and permissions required to upload it for cloud processing, including processing by the service providers identified in the Privacy Policy.

Cloud HQ uses server-calculated song units. Unless the App states otherwise at the time of processing, one completed Cloud HQ separation job uses one song unit. A unit is reserved when a validated job starts. If the service marks that job as failed, the reserved unit is returned; a successfully completed job consumes the unit even if you do not like, download, keep, or use the resulting Outputs. Song units have no cash value, are non-transferable, may not be sold or exchanged, and cannot be redeemed for a refund.

At the time these Terms were last updated, eligible Premium accounts accrue one Cloud HQ song unit every seven days, up to a maximum available balance of 12 units. The App displays the currently available balance and, where applicable, the next accrual time. We may prospectively change eligibility, allocations, balance caps, formats, file-size limits, concurrency, or other Cloud HQ conditions when reasonably necessary for service operation, cost, security, abuse prevention, legal compliance, or product changes, with notice where required by law.

Cloud HQ currently accepts only supported non-DRM audio formats and source files up to 200 MB. The feature requires an internet connection and may be delayed, unavailable, rate-limited, suspended, or discontinued. Cloud HQ is provided on an “as available” basis and is also subject to the accuracy and liability limitations in Sections 2, 12, and 13.

For a Cloud HQ request, you direct us to transmit the selected Content and necessary job metadata to our cloud infrastructure and to a third-party processing provider, solely to perform and return the requested separation. Third-party providers may have additional terms and privacy practices; see the Privacy Policy for details. We do not provide your App account password or payment credentials to the processing provider.

8.3 Purchases and third-party payment channels

The App may offer paid features, subscriptions, credits, or other purchases. Prices, billing period, renewal terms, and applicable taxes will be presented before purchase. Purchases processed through Apple or another authorised third-party payment channel are governed by that channel's terms, billing rules, and refund process. The Developer does not receive or store your full payment-card, bank-account, or digital-wallet credentials.

Unless mandatory law or the applicable payment channel requires otherwise, purchases are final and non-refundable once the purchased feature, credit, or subscription benefit has been made available. If an automatically renewing subscription is offered, you can manage or cancel it through the relevant app-store account settings; cancellation takes effect at the end of the current paid period.

9. Advertisements and external services

The App may display advertising or link to third-party services. Advertising may be contextual or, where you give the required permission, more relevant to you based on information that you allow an advertising platform to use. You can choose not to permit tracking where the App provides that choice; you may still receive less-personalised or contextual advertising. See the Privacy Policy for details.

The App uses third-party service providers to operate account, payment, entitlement-sync, cloud-storage, and Cloud HQ functions. Their processing of data is described in the Privacy Policy. Third-party services are provided under their own terms and privacy policies. The Developer does not control and is not responsible for their availability, accuracy, content, conduct, or practices, except to the extent responsibility cannot lawfully be excluded. Your use of an external service is at your own risk and subject to applicable law.

10. Privacy

The Privacy Policy explains how the Developer handles account and registration information, local and cloud Content, Cloud HQ processing, quota and entitlement data, analytics, payments, and advertising. It forms part of these Terms.

11. Suspension and termination

These Terms remain in effect until terminated. You may terminate them by deleting the App and ceasing use of all App features. The Developer may suspend or terminate your access immediately if you materially breach these Terms, create security or legal risk, infringe rights, misuse the App, or where reasonably necessary to comply with law.

On termination, the licence in Section 3 ends. Sections that by their nature should survive—including Sections 4 through 10 and 12 through 18—will survive. Termination does not affect rights or obligations accrued before termination.

12. No warranty

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE APP, CLOUD PROCESSING, MODELS, OUTPUTS, AND ALL RELATED SERVICES ARE PROVIDED “AS IS” AND “AS AVAILABLE,” WITH ALL FAULTS. THE DEVELOPER DISCLAIMS ALL WARRANTIES, CONDITIONS, REPRESENTATIONS, AND GUARANTEES, WHETHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AVAILABILITY, SECURITY, QUIET ENJOYMENT, TITLE, AND NON-INFRINGEMENT.

THE DEVELOPER DOES NOT WARRANT THAT THE APP OR OUTPUTS WILL BE UNINTERRUPTED, ERROR-FREE, SECURE, AVAILABLE AT A PARTICULAR TIME, COMPATIBLE WITH EVERY DEVICE OR FILE, OR FREE FROM LOSS, ARTIFACTS, INACCURACIES, OR HARMFUL COMPONENTS. YOU ARE RESPONSIBLE FOR MAINTAINING BACKUPS OF CONTENT AND OUTPUTS THAT MATTER TO YOU.

Some jurisdictions do not allow certain warranty exclusions. In that case, those exclusions apply only to the maximum extent permitted by law and do not limit mandatory consumer rights.

13. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE DEVELOPER WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, PUNITIVE, OR CONSEQUENTIAL LOSS OR DAMAGE, OR FOR ANY LOSS OF PROFITS, REVENUE, GOODWILL, DATA, CONTENT, OUTPUTS, BUSINESS OPPORTUNITY, OR BUSINESS INTERRUPTION, ARISING OUT OF OR RELATED TO THE APP, THESE TERMS, CONTENT, OUTPUTS, CLOUD PROCESSING, ADVERTISEMENTS, OR THIRD-PARTY SERVICES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE DEVELOPER'S TOTAL AGGREGATE LIABILITY ARISING OUT OF OR RELATED TO THE APP OR THESE TERMS WILL NOT EXCEED THE GREATER OF (A) US$50 OR (B) THE AMOUNT YOU PAID DIRECTLY TO THE DEVELOPER FOR THE APP IN THE TWELVE MONTHS BEFORE THE EVENT GIVING RISE TO LIABILITY.

Nothing in these Terms excludes or limits liability that cannot lawfully be excluded or limited, including liability for fraud or fraudulent misrepresentation, death or personal injury caused by negligence where applicable law does not permit limitation, or mandatory consumer protections. These limitations apply even if a remedy fails of its essential purpose.

14. Indemnity

To the extent permitted by applicable law, you will defend, indemnify, and hold harmless the Developer from claims, damages, liabilities, losses, and expenses (including reasonable legal fees) arising from or related to your Content, your use of Outputs, your breach of these Terms, or your infringement or alleged infringement of another person's rights. The Developer will give you reasonable notice of a claim, except where delay would prejudice the Developer.

15. Apple-specific terms

This EULA is between you and the Developer, not Apple Inc. (“Apple”). The Developer, not Apple, is solely responsible for the App, its content, maintenance, support, and handling of claims related to the App, including product-liability, consumer-protection, privacy, or intellectual-property-infringement claims, except to the extent Apple is responsible under mandatory law.

If the App fails to conform to an applicable warranty, you may notify Apple. To the maximum extent permitted by applicable law, Apple will have no other warranty obligation with respect to the App. Apple has no obligation to provide maintenance or support services for the App.

You represent that you are not located in a country subject to a U.S. government embargo and are not listed on any U.S. government list of prohibited or restricted parties. You may not use or export the App except as authorised by applicable export-control laws and the laws of the jurisdiction in which you obtained it.

Apple and its subsidiaries are third-party beneficiaries of these Terms and, upon your acceptance, may enforce these Terms against you as a third-party beneficiary.

16. Governing law and disputes

Except where mandatory consumer law provides otherwise, these Terms and any dispute arising from them are governed by the laws of Singapore, excluding conflict-of-law principles. The courts of Singapore will have exclusive jurisdiction, except that consumers may bring claims in a court that mandatory law allows in their place of residence.

Nothing in this section deprives you of non-waivable protections available under the laws of your country or region of residence.

17. Changes to these Terms

The Developer may update these Terms to reflect changes to the App, law, security, or business practices. For material changes, the Developer will provide reasonable advance notice through the App, an app-store listing, or another reasonable channel when required by law. The updated Terms take effect on the stated effective date. If you continue using the App after they take effect, you accept the updated Terms. If you do not agree, you must stop using the App.

18. General

These Terms, together with the Privacy Policy and any purchase terms presented to you, are the entire agreement between you and the Developer about the App. If a provision is unenforceable, it will be enforced to the fullest extent allowed and the remaining provisions will remain effective. The Developer's failure to enforce a provision is not a waiver. You may not assign these Terms without the Developer's written consent; the Developer may assign them in connection with a merger, acquisition, corporate reorganisation, or transfer of assets.

19. Contact

For questions, support, rights requests, or legal notices, contact:

WANG PING-YAO

Email: bw.innovation.tw@gmail.com