Schedule 1A: Avalonia Accelerate Enterprise Licence

Version 1.0, effective as of 5 February 2026

1. Product-Specific Definitions

"Software" refers to Avalonia Accelerate (Enterprise Tier), the proprietary software product provided by Avalonia UI, including its Tools and Components, any associated libraries, binaries, documentation, and any Updates provided under this Agreement.

"Tools" refers to the developer tools and applications included in Avalonia Accelerate that are installed on a Licensee's machine to facilitate building applications with Avalonia.

"Components" refers to the user interface controls, libraries, and similar software components provided as part of Avalonia Accelerate for Licensee to incorporate into its Avalonia-based applications.

"Named User" means a specific individual (e.g., an employee or contractor of the Licensee) designated to use the Software under the Licensee's Enterprise Licence. An Enterprise Licence is issued on a per-Named User basis.

"Redistributable Components" means the runtime components of the Software that may be distributed as part of the Licensee's applications, specifically: Avalonia UI runtime libraries required for rendering UI components, and any assemblies explicitly designated as redistributable in the Software documentation.

2. Licence Grant

2.1 Grant of Licence

Subject to payment of all applicable fees and continuous compliance with the Master Terms and this Schedule, Avalonia UI grants to the Licensee a non-exclusive, non-transferable, perpetual Enterprise Licence to:

(a) Integrate and Use. Install and use the Software (including Tools and Components) for developing software applications and integrating the Components into such applications.

(b) Reproduce and Distribute in Executable Form. Reproduce, embed, and distribute the Components as part of the Licensee's own software applications, in executable (compiled) form only, and solely as an integral part of those applications. Distribution is permitted only as part of the application's binary or installation package, not as a standalone product or library. End-users may install and use applications incorporating the Software without additional runtime or distribution fees.

(c) Perpetual Rights. The rights granted above are perpetual for versions obtained during a valid Support Period. Applications developed and distributed under this licence can continue to be used indefinitely, subject to the termination provisions in the Master Terms.

2.2 Named User Licence Requirement

The Enterprise Licence is per Named User. The Software may be used only by the specific individual for whom a licence has been purchased. The Licensee shall not allow multiple individuals to share a single licence.

The Licensee may install the Tools on more than one machine (e.g., work computer, home laptop) for the Named User's use, provided only that Named User uses those installations.

Licence Reassignment: A Named User licence may be reassigned to a different individual subject to:

(a) A ninety (90) day cooldown period from the most recent assignment;

(b) Submission of the reassignment request through the Avalonia UI customer portal;

(d) No circumvention of the per-Named User licensing model.

2.3 Build Servers and Continuous Integration

The Licensee may install and use the Software on automated build machines and CI servers without purchasing a separate Named User licence, provided that:

(a) The Build Server is used solely for automated compilation, packaging, and deployment, with no interactive use;

(b) Every individual who develops, designs, tests, or otherwise interactively uses the Software holds a valid Named User licence;

(c) The Build Server does not provide interactive access to the Tools or expose the Software's functionality to unlicensed users; and

(d) The Build Server exception is not used to circumvent the Named User licensing model.

2.4 Platform Scope

Each Enterprise Licence includes the right to develop, deploy, and run applications on: Windows, macOS, Linux, iOS, Android, and WebAssembly.

Use on any other platforms requires a separate agreement or prior written consent from Avalonia UI.

3. Source Code Licence (If Applicable)

If the Licensee has purchased an Enterprise Tier licence that includes source code access:

3.1 Scope of Source Code Grant

Avalonia UI grants a non-exclusive, non-transferable licence to access and internally use the Source Code solely for understanding, debugging, and troubleshooting. The Licensee may modify the Source Code for internal use only and may compile such modifications for use in its own applications. Distribution of modified object code is permitted only as a replacement for corresponding Redistributable Components.

3.2 Redistribution Prohibited

The Licensee shall not distribute, publish, license, or otherwise make the Source Code or any derivative works thereof available to any third party. Redistribution of object code compiled from modified Source Code is permitted only as an embedded component of the Licensee's own application.

3.3 Confidentiality and Security

The Source Code constitutes Avalonia UI's Confidential Information and contains valuable trade secrets. The Licensee must maintain its confidentiality, limit access to authorised developers, and refrain from storing the Source Code in any publicly accessible location.

3.4 Use Restrictions

The Licensee shall not use the Source Code to create any competing software products, developer tools, component libraries, or frameworks that replicate or compete with Avalonia Accelerate or other Avalonia UI products.

3.5 Ownership and Derivative Works

Avalonia UI retains all rights in and to the Source Code. The Licensee hereby assigns to Avalonia UI all rights in any corrections, modifications, or derivative works of the Source Code.

3.6 Technical Requirements for Modified Code

Any object code compiled from the Source Code or derivatives:

(i) must be obfuscated using a commercially reasonable obfuscation tool;

(ii) may not include "AvaloniaUI", "Avalonia UI", or "Avalonia Accelerate" in assembly names, namespaces, or publicly visible identifiers;

(iii) must preserve all original copyright notices and proprietary markings; and

(iv) may only be distributed as an embedded, non-extractable component of the Licensee's application.

3.7 Termination of Source Code Licence

Upon termination of the Enterprise Tier licence, expiration of the Support Period, or any lapse in support coverage, the Licensee must:

(i) immediately cease all use of the Source Code;

(ii) permanently delete all copies of the Source Code; and

(iii) upon request, certify in writing that all copies have been destroyed.

4. Additional Licence Restrictions

In addition to the restrictions in Section 4 of the Master Terms:

4.1 Competition Restriction

The Licensee shall not use the Software primarily to develop, test, or provide a Competing Product or Hard Fork.

"Competing Product" means any product, package, extension, component library, toolkit, or developer tool that the Licensee distributes to third parties and that is intended to replace, replicate, or serve as a substitute for Avalonia UI's commercial offerings.

"Hard Fork" means a fork of an Avalonia UI open-source project that is published to NuGet or any other package feed and positioned as a replacement for the original project.

This restriction does not prevent the Licensee from: building applications for end users; providing consulting or development services; evaluating Avalonia UI alongside alternatives; or contributing to non-competing open-source projects.

4.2 Minimum Functionality Requirement

Applications incorporating Redistributable Components must provide primary and substantial functionality beyond the Software itself. The Licensee may not create applications that consist primarily of the Software's UI components or provide access to such components for third-party developers.

4.3 No Shared Use of Development Tools

The Licensee may not share, pool, or otherwise allow any person other than the designated Named User to access or use the Tools, regardless of whether access is concurrent or sequential.

4.4 Compliance Verification and Audit Rights

The Licensee shall maintain accurate records of Named Users and deployment of Redistributable Components. Avalonia UI may, no more than once per year upon 30 days' prior written notice, audit the Licensee's use of the Software to verify compliance.

5. Support and Updates

5.1 Included Support Period

Purchase of an Enterprise Licence includes access to Software Updates and support services for an initial period of twelve (12) months from the Effective Date.

During this period, the Licensee is entitled to:

(a) receive any Software Updates released by Avalonia UI; and

(b) access support services for issues related to the unmodified Software.

Support is provided via email ([email protected]) and the Customer Portal.

Support is provided on a best-efforts basis with no response time commitments.

5.2 Renewal of Support

At the end of the 12-month Support Period, support will automatically renew for an additional 12 months upon receipt of the applicable renewal fee, unless the Licensee opts out before the renewal date, and subject to Avalonia UI's right to decline renewal. Avalonia UI will provide at least 30 days' notice of the upcoming renewal and applicable fees.

Avalonia UI has no obligation to offer renewal and may, in its sole discretion and for any reason, decline to renew support. If Avalonia UI declines renewal, support will end at the end of the then-current Support Period.

5.3 Lapse of Support

If the Licensee does not renew support, the perpetual licence continues for the version of the Software in possession at the time support lapsed. However, the Licensee will no longer receive Updates, patches, or technical support.

5.4 Product Support Baseline

Support is provided in accordance with Schedule 3 (Product Support), as modified by this Schedule.

End of Schedule 1A