end-user license agreement.

Version 1.0 — September 2026

This End-User License Agreement ("Agreement") is a legal agreement between you ("Licensee", "you") and Sinuslabs OÜ, a private limited company registered in the Estonian Commercial Register under registry code 16567803, Sepapaja tn 6, 15551 Tallinn, Estonia ("Sinuslabs", "we", "us") for the Patchhaus software, including the Patchhaus desktop application, web platform, export tooling, documentation, and any updates provided to you (together, the "Software").

By downloading, installing, or using the Software you agree to be bound by this Agreement. If you are accepting on behalf of a company or other legal entity, you represent that you have authority to bind that entity, and "you" refers to that entity. If you do not agree, do not install or use the Software.

1. Definitions

• "Product" means an audio plugin, application, or other work you create with the Software, including your patch source files, UI code, code generated by the Software from your project, and binaries built from them.
• "Revenue" means the greater of (a) aggregate gross revenue and (b) aggregate funding raised, of you and any entity you develop Products for, over the 12 months preceding any distribution of a Product.
• "License Tier" means one of the tiers set out in Section 3.
• "Open Source Product" means a Product whose complete corresponding source code is publicly available under a license compatible with the GNU GPLv3 (or later).

2. License grant

2.1. The Software is licensed, not sold. We remain the owner of the Software at all times.

2.2. Subject to this Agreement and your applicable License Tier, we grant you a non-exclusive, non-transferable, non-sublicensable license to install and use the Software to develop, build, and export Products.

2.3. Paid tiers are licensed per user, per month. Each person who uses the Software to develop Products requires their own seat.

3. License Tiers

3.1. Open Source (free). You may use the Software without charge, with no Revenue cap, provided every Product you distribute under this tier is an Open Source Product.

3.2. Personal (free). For individuals and entities whose Revenue is below US$50,000. Products distributed under this tier must include a visible "Made with Patchhaus" attribution (for example in the plugin's about view or accompanying documentation).

3.3. Indie (US$40 per user per month). For entities whose Revenue is below US$500,000. No attribution requirement.

3.4. Pro (US$240 per user per month). No Revenue cap. No attribution requirement.

3.5. Education (free). For enrolled students and accredited educational institutions, for learning and teaching purposes only. Products may not be commercially distributed under this tier.

3.6. Tier changes. If your Revenue crosses a tier threshold, you must move to the appropriate tier before your next distribution of any Product (including updates).

3.7. Subscription scope. An active subscription (or qualifying free tier) is required while you distribute new Products or updates to Products. Binaries you shipped while properly licensed remain licensed after your subscription ends; you may not ship new builds without an active license.

4. Your Products

4.1. You own your Products. We claim no ownership of, and no royalties on, your patch sources, your UI code, code the Software generates from your project, or the binaries you build. Subject to Section 7 (third-party components), you may distribute Products under any license terms you choose, commercial or open source.

4.2. You are responsible for your Products, including their compliance with applicable law and third-party rights.

5. Restrictions

Except as expressly permitted by this Agreement or applicable law, you must not:

5.1. copy, redistribute, sell, rent, lease, sublicense, or host the Software or any part of it;

5.2. disassemble, decompile, or reverse engineer the Software, except to the extent permitted by mandatory applicable law;

5.3. extract or reuse components of the Software (including its DSP engine integration, code generators, or UI runtime) to build a product that provides substantially similar functionality to the Software;

5.4. remove or alter copyright, trademark, or attribution notices in the Software;

5.5. share license keys or account credentials, or allow more people to use paid seats than you have subscribed for;

5.6. use the Software to develop Products that are illegal or infringe third-party rights.

6. Accounts, credits, and services

6.1. Some features (including AI assistance) require an account and are billed separately under the plan and credit terms published at the Patchhaus website. Those plans govern service usage; this Agreement governs the Software license and distribution rights for Products. Both may apply at the same time.

6.2. The Software may check for and install updates. Release-channel builds may do so automatically.

7. Third-party software

The Software incorporates, and Products exported by the Software may incorporate, third-party components licensed under their own terms — including CHOC (ISC), iPlug2 (zlib-style, together with its own bundled dependencies), Monocypher (CC0 / BSD-2-Clause) and LLVM (Apache 2.0 with LLVM exceptions). A current list is maintained in the Software's third-party notices. Nothing in this Agreement limits or expands the rights those licenses grant you, and your distribution of Products must comply with the third-party licenses covering any third-party code they contain.

8. Intellectual property

All intellectual-property rights in the Software belong to us or our licensors. You receive only the rights expressly granted in this Agreement.

9. Termination

9.1. This Agreement terminates automatically if you materially breach it and (where the breach is curable) fail to cure within 14 days of notice.

9.2. On termination you must stop using the Software and destroy your copies. Sections 4, 7, 8, 10, 11, and 12 survive termination. Section 3.7 (already-shipped binaries) survives for Products shipped while properly licensed.

10. Warranty disclaimer

THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW. Statutory rights that cannot be waived remain unaffected.

11. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, WE SHALL NOT BE LIABLE FOR INDIRECT, INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES, OR LOSS OF PROFITS, DATA, OR GOODWILL, ARISING FROM OR RELATED TO THIS AGREEMENT. OUR AGGREGATE LIABILITY SHALL NOT EXCEED THE AMOUNTS YOU PAID US IN THE 12 MONTHS PRECEDING THE CLAIM (OR US$100 IF YOU USE A FREE TIER). Liability for intent, gross negligence, and injury to life, body, or health remains unlimited where required by law.

12. General

12.1. Governing law. This Agreement is governed by the laws of the Republic of Estonia, excluding its conflict-of-law rules and the UN Convention on Contracts for the International Sale of Goods. Exclusive venue is the courts of Tallinn, Estonia, to the extent permitted by law.

12.2. Changes. We may update this Agreement for new Software versions. Continued use of a new version constitutes acceptance of the updated terms for that version.

12.3. Entire agreement. This Agreement, together with the plan terms referenced in Section 6, is the entire agreement regarding the Software and supersedes prior discussions.