Last Updated: August 10, 2026 • Version: 4.0.1
McRock is owned and operated by Differson LLC ("Differson", "we", "our", "us"). These Terms of Service ("Terms") govern your access to and use of the McRock application, website, and related services (collectively, the "Service").
By creating an account or using the Service, you agree to be bound by these Terms. If you do not agree, do not use the Service.
McRock lets you converse with an AI assistant, generate music from that conversation, publish tracks, and earn from in-platform streams. These Terms apply to all users, whether on a free or paid plan.
You must be at least 13 years old to use the Service. Users aged 13–17 should have permission from a parent or legal guardian. You are responsible for maintaining the confidentiality of your credentials and for all activity under your account.
McRock offers free and paid subscription tiers. Paid subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period.
Payments made through the Apple App Store are processed by Apple and are subject to Apple's terms, including Apple's refund policy. Requests for refunds on App Store purchases must be directed to Apple.
For payments processed directly by Differson, subscription payments and crowdfunding contributions are non-refundable except where a refund is required by applicable law. We may change pricing with at least 30 days' notice; changes do not apply to the current billing period.
You retain ownership of the material you supply: your prompts, chat messages, lyrics, titles, artwork you upload, and conceptual direction.
You grant Differson a non-exclusive, worldwide, royalty-free license to host, store, reproduce, process, and display that material solely to operate and provide the Service, including generating music at your request and making released tracks available for streaming on the platform.
The Service generates music using artificial intelligence based on your input. Generation is probabilistic: identical inputs may produce different outputs, and we do not guarantee any particular musical result, quality level, or duration. Generation may fail or time out; where it does, we will make reasonable efforts to restore consumed credits.
You agree to use the Service lawfully and not to interfere with its operation, security, or availability, or with other users' use of it.
You may not create, upload, or publish content that:
You may not:
Violation may result in withheld or reversed payouts, suspension, or termination under Section 13.
Your creative input. You own the copyright in your original creative input (prompts, lyrics, conceptual direction), to the extent it is protectable.
AI-generated output. Under current U.S. Copyright Office guidance, material generated by artificial intelligence without sufficient human authorship may not be eligible for copyright protection. Differson makes no representation that tracks generated through the Service are protectable by copyright, in whole or in part. You are responsible for determining the copyright status of your tracks before relying on them commercially.
Commercial license. Subject to these Terms and to an active paid subscription, Differson grants you a worldwide, royalty-free, non-exclusive license to use, reproduce, distribute, perform, and monetize tracks you generate through the Service.
If your subscription lapses:
External distribution. You retain 100% of revenue you earn from distributing your tracks outside McRock. Differson claims no royalty on external distribution.
You are responsible for compliance with the laws of the jurisdictions in which you publish or distribute. Requirements for disclosing AI involvement in creative works differ by country and are changing.
AI systems generate output by learning patterns from data. Despite the measures we take, generated music may unintentionally resemble existing works. Differson does not warrant that generated content is free from resemblance to third-party works, and does not indemnify you against third-party claims arising from your publication or distribution of generated content.
Please read this section carefully — it describes what other users can see about your listening, and how payouts are calculated.
McRock pays creators a fixed rate per verified stream. A play only counts as a payable stream when both of the following are met:
A play may also be excluded where our systems identify indicators of inauthentic activity, including automated or scripted playback, coordinated activity across accounts, or playback patterns inconsistent with genuine listening. Verification runs at the moment the threshold is reached, and creators see verified stream counts as they accrue.
If you believe streams were excluded in error, contact contact@differson.net within 60 days of the relevant payout period.
Please read this before you stream music on McRock. McRock is built for transparent creator payouts. Unlike conventional streaming services, McRock shows creators information about who streamed their tracks so that creators can independently verify the streams they are paid for.
When you stream a track, the creator of that track can see:
Creators do not see your email address, your legal name, your account identifier, your payment information, your listening activity on other creators' tracks, your chat conversations, or your generation history.
Your display name is visible to creators whose tracks you stream. If that name identifies you, creators can identify you. You can change your display name at any time in Settings.
The listener ID is derived separately for each creator, so the IDs themselves cannot be used to link your listening across creators. Your display name, however, is the same everywhere.
Why we do this. Creator payouts depend on stream counts. Without visibility, a creator has no way to check that the counts they are paid on are real. This disclosure exists to make the payout system auditable by the people it pays.
By creating an account and streaming music on McRock, you acknowledge and agree that this information is shared with creators as described above. If you do not agree, do not stream music on the platform. See the Privacy Policy for the full description of this processing and your rights.
Our collection, use, storage, and disclosure of personal information is described in the Privacy Policy, which forms part of these Terms.
Differson owns, and retains all rights in, the software it has developed for the McRock platform, including:
The Service incorporates third-party open-source software, which remains the property of its respective authors and is used under the applicable open-source licenses. A list of these components and their licenses is available on request to contact@differson.net.
Differson's proprietary rights under Section 9.1 extend only to its own software and do not extend to these third-party components.
You may not copy, modify, reverse engineer, decompile, disassemble, or attempt to derive the source code of Differson's proprietary software, except to the extent such restriction is prohibited by applicable law. This restriction does not apply to the third-party open-source components listed in Section 9.2, which are governed by their own licenses.
You may not use the Service, or any content obtained through it, to train, fine-tune, or develop any machine learning or generative model, nor may you scrape, harvest, or systematically extract data from the Service.
The Service is provided on an "as available" basis. We may modify, suspend, or discontinue features at any time. For material changes that reduce functionality you have paid for, we will provide at least 30 days' notice where practicable. We are not liable for failures or delays caused by circumstances beyond our reasonable control, including outages of hosting or cloud infrastructure providers.
TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, DIFFERSON LLC SHALL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR ANY LOSS OF PROFITS, REVENUE, DATA, OR GOODWILL, ARISING FROM OR RELATING TO YOUR USE OF THE SERVICE.
DIFFERSON'S TOTAL AGGREGATE LIABILITY SHALL NOT EXCEED THE GREATER OF (A) THE AMOUNT YOU PAID TO DIFFERSON IN THE TWELVE MONTHS PRECEDING THE EVENT GIVING RISE TO THE CLAIM, OR (B) ONE HUNDRED U.S. DOLLARS ($100).
Some jurisdictions do not allow certain limitations of liability; in those jurisdictions our liability is limited to the greatest extent permitted by law.
You agree to defend, indemnify, and hold harmless Differson LLC, its officers, and its employees from any claim, demand, loss, or expense (including reasonable attorneys' fees) arising out of your content, your use of the Service, or your violation of these Terms or of any law or third-party right.
We may suspend or terminate your account for violation of these Terms, including manipulation of stream counts or payouts. You may deactivate your account at any time through Settings. On deactivation, your access ends immediately. Data retention following deactivation is described in the Privacy Policy. Withheld payouts attributable to verified inauthentic activity are forfeited.
Please read this section carefully. It affects your legal rights.
Any dispute arising out of or relating to these Terms or the Service shall be resolved by binding arbitration administered by the American Arbitration Association under its Consumer Arbitration Rules, on an individual basis. You and Differson each waive the right to a jury trial and to participate in a class action.
Opt-out. You may opt out of this arbitration agreement by emailing contact@differson.net with the subject line "Arbitration Opt-Out" within 30 days of first accepting these Terms. Opting out does not affect any other part of these Terms. Either party may bring an individual claim in small claims court instead of arbitration.
These Terms are governed by the laws of the State of Wyoming, United States, without regard to its conflict-of-law rules, except that the Federal Arbitration Act governs Section 14.
If these Terms conflict with the End User License Agreement below, these Terms control. If either conflicts with a mandatory App Store rule for purchases made through that store, the App Store rule controls for that purchase.
Differson LLC — McRock Music Platform
Last Updated: August 10, 2026 • Version: 4.0.1
This Agreement is a binding agreement between you and Differson LLC. It supplements the Terms of Service above. Where this EULA and the Terms of Service conflict, the Terms of Service control.
Subject to your compliance with this Agreement, we grant you a non-exclusive, non-transferable, revocable license to use the App for personal or internal business purposes, in accordance with applicable App Store Usage Rules.
Auto-renewable subscriptions are described in the App. Payments made through the App Store are processed by Apple and renew automatically unless canceled at least 24 hours before the end of the current period. Refunds for App Store purchases are handled by Apple under Apple's policies.
Commercial rights in generated tracks are granted as set out in Section 6.4 of the Terms of Service, including the conditions that apply when a subscription lapses. This Agreement does not grant broader rights than Section 6.4.
Royalties are payable at the rate and on the conditions set out in Section 7 of the Terms of Service, including stream verification and Differson's right to adjust the rate on notice.
By streaming music through the App you acknowledge the creator-visible listener information described in Section 7.2 of the Terms of Service and in the Privacy Policy.
The App is provided "as is" without warranties of any kind. Liability is limited as set out in Section 11 of the Terms of Service.
This Agreement is governed by the laws of the State of Wyoming, United States, consistent with Section 15 of the Terms of Service.
By creating an account or using the McRock Service, you acknowledge that you have read, understood, and agree to be bound by these Terms of Service and this End User License Agreement.