ARCHITECTBUDDIES

END USER LICENSE AGREEMENT

Effective Date: 3 February 2026

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IMPORTANT: PLEASE READ THIS END USER LICENSE AGREEMENT CAREFULLY BEFORE USING THE ARCHITECTBUDDIES APPLICATION. BY DOWNLOADING, INSTALLING, OR USING THIS APPLICATION, YOU AGREE TO BE BOUND BY THE TERMS OF THIS AGREEMENT. IF YOU DO NOT AGREE TO THESE TERMS, DO NOT DOWNLOAD, INSTALL, OR USE THE APPLICATION.

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1. AGREEMENT AND ACKNOWLEDGEMENT

This End User License Agreement ("Agreement") is a legal agreement between you ("End User" or "You") and Hytsioaboa Software Ltd., a company registered in England and Wales, trading as HytsioStudio ("Licensor", "we", "us", or "our") for the use of the ArchitectBuddies mobile and desktop application (the "Licensed Application" or "Application").

You acknowledge and agree that:

1. This Agreement is concluded between You and the Licensor only, and not with Apple Inc. ("Apple"). The Licensor, not Apple, is solely responsible for the Licensed Application and the content thereof.

2. Apple has no obligation whatsoever to furnish any maintenance and support services with respect to the Licensed Application.

3. Apple, and Apple's subsidiaries, are third-party beneficiaries of this Agreement. Upon Your acceptance of the terms and conditions of this Agreement, Apple will have the right (and will be deemed to have accepted the right) to enforce this Agreement against You as a third-party beneficiary thereof.

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2. SCOPE OF LICENSE

Subject to Your compliance with this Agreement, the Licensor grants You a limited, non-exclusive, non-transferable, revocable license to download, install, and use the Licensed Application on any Apple-branded products that You own or control, and as permitted by the Usage Rules set forth in the Apple Media Services Terms and Conditions.

The Licensed Application may be accessed and used by other accounts associated with the purchaser via Family Sharing or volume purchasing programs, subject to the applicable terms.

You may NOT:

• Distribute or make the Licensed Application available over a network where it could be used by multiple devices at the same time

• Transfer, redistribute, or sublicense the Licensed Application

• Copy the Licensed Application except as permitted by this license and the Usage Rules

• Reverse-engineer, disassemble, or attempt to derive the source code of the Licensed Application

• Modify or create derivative works of the Licensed Application, except as permitted by applicable law or open-source component licenses

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3. EXTERNAL SERVICES

The Licensed Application may enable access to the Licensor's and/or third-party services and websites (collectively and individually, "External Services"). External Services include, but are not limited to, the cloud-based and LAN-based 
AI services described in Section 4, third-party APIs, and online resources. You agree to use the External Services at Your sole risk. The Licensor is not responsible for examining or evaluating the content or accuracy of any third-party External Services, and shall not be liable for any such third-party External Services. Data displayed by the Licensed Application or any External Service, including but not limited to architecture diagrams, AI-generated content, and technical information, is for general informational purposes only and is not guaranteed by the Licensor or its agents.

You will not use the External Services in any manner that is inconsistent with the terms of this Agreement or that infringes the intellectual property rights of the Licensor or any third party. You agree not to use the External Services to harass, abuse, stalk, threaten, or defame any person or entity, and the Licensor is not responsible for any such use.

External Services may not be available in all languages or in Your country, and may not be appropriate or available for use in any particular location. To the extent You choose to use such External Services, You are solely responsible for 
compliance with any applicable laws.

The Licensor reserves the right to change, suspend, remove, disable, or impose access restrictions or limits on any External Services at any time without notice or liability to You.

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4. ARTIFICIAL INTELLIGENCE SERVICES

The Licensed Application incorporates artificial intelligence ("AI") capabilities through multiple service providers and processing methods. By using these features, You agree to the following terms:

4.1 Cloud-Based AI Services

The Application may utilize cloud-based AI services from third-party providers including, but not limited to:

• OpenAI API Services: Including GPT models and image generation services (e.g. gpt-image-1). Use of these services is subject to OpenAI's Terms of Use and Usage Policies.

• Google Gemini API Services: Use is subject to the Google APIs Terms of Service and Gemini API Additional Terms of Service.

• Anthropic Claude API Services: Use is subject to Anthropic's Terms of Service and Acceptable Use Policy.

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You acknowledge that: (i) data sent to cloud AI services may be processed on servers located outside Your country of residence; (ii) these services may use Your input data in accordance with their respective privacy policies; (iii) You are responsible for any charges incurred through Your use of these services via Your own API keys; (iv) the Licensor is not responsible for any content, accuracy, or availability of third-party AI services.

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4.2 Local Area Network (LAN) AI Services

The Application supports connection to Large Language Models ("LLMs") running on Your local network, including but not limited to Ollama servers. You acknowledge that:

• You are solely responsible for configuring, securing, and maintaining any local LLM servers

• The Licensor has no control over locally-hosted models and is not responsible for their output, performance, or availability

• You must comply with all applicable licenses for any third-party LLM models You deploy locally

• Network security for LAN-accessible AI services is Your responsibility

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4.3 On-Device AI Processing

The Application includes on-device AI inference capabilities powered by llama.cpp and compatible model formats. On-device processing is NOT an External Service as defined in Section 3; it occurs entirely within the Licensed Application on Your device.
You acknowledge that:

• On-device processing occurs entirely on Your device and no data is transmitted to external servers for this processing

• Performance depends on Your device's hardware capabilities, available memory, and processing power

• Models downloaded for on-device use may be subject to third-party licenses (including but not limited to Meta's Llama Community License Agreement) which You must independently review and accept

• The Licensor does not warrant the accuracy, reliability, or fitness of any on-device AI model outputs

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4.4 AI-Generated Content Disclaimer

IMPORTANT: All AI-generated content (including but not limited to text, architecture diagrams, element suggestions, and images) is provided "AS IS" for informational and assistive purposes only. AI-generated content may contain errors, inaccuracies, or inappropriate suggestions. You are solely responsible for reviewing, validating, and approving all AI-generated content before use in any professional, business, or production context. The Licensor makes no representations or warranties regarding the accuracy, completeness, or suitability of AI-generated content for any particular purpose.

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5. SERVICE AVAILABILITY AND MODIFICATIONS

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5.1 Third-Party Service Dependencies

You acknowledge that certain features of the Licensed Application depend on third-party services, APIs, and platforms that are outside the Licensor's control. These include, but are not limited to, OpenAI API, Google Gemini API, Anthropic Claude API, and various LLM model providers.

THE LICENSOR DOES NOT GUARANTEE the continued availability, functionality, compatibility, or performance of any third-party services. Third-party providers may, at any time and without notice to the Licensor: (i) modify, suspend, or discontinue their services or APIs; (ii) change their terms of service, pricing, or usage policies; (iii) impose new restrictions or requirements; (iv) deprecate features or functionality; or (v) cease operations entirely.

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5.2 Impact of Third-Party Changes

You acknowledge and agree that:

• Features relying on third-party services may become unavailable, degraded, or modified at any time without prior notice

• The Licensor is not liable for any loss, damage, or inconvenience caused by changes to, or discontinuation of, third-party services

• The Licensor is not obligated to replace discontinued third-party services with alternatives

• Changes to third-party APIs may require updates to the Application, which may take time to develop and deploy

• No refund or compensation is due for features that become unavailable due to third-party service changes

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5.3 Licensor's Right to Modify

The Licensor reserves the right to, at any time and without liability:

• Add, modify, or remove features from the Licensed Application

• Change or discontinue support for specific AI models, APIs, or service providers

• Modify system requirements or supported device specifications

• Update the Application to comply with platform requirements, legal obligations, or security needs

• Discontinue the Licensed Application entirely with reasonable notice

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5.4 Service Interruptions

The Licensor shall not be liable for any interruption, suspension, or termination of service resulting from: (i) scheduled or emergency maintenance; (ii) failures or malfunctions of third-party services, networks, or infrastructure; (iii) events beyond the Licensor's reasonable control including but not limited to acts of God, natural disasters, war, terrorism, riots, embargoes, acts of civil or military authorities, fire, floods, pandemics, strikes, or shortages of transportation, facilities, fuel, energy, labour, or materials; (iv) cyber attacks, security incidents, or data breaches affecting third-party providers; or (v) changes in laws, regulations, or platform policies.

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6. THIRD-PARTY INTELLECTUAL PROPERTY AND STANDARDS

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6.1 ArchiMate® Notation

The Licensed Application implements the ArchiMate® enterprise architecture modeling language. ArchiMate® is a registered trademark of The Open Group. The Licensor operates under a valid Commercial License from The Open Group for the ArchiMate 3.2 Specification.

You acknowledge and agree that:

• Your use of ArchiMate notation through this Application is permitted solely in connection with your licensed use of the Application

• The ArchiMate® trademark and specification remain the intellectual property of The Open Group

• This license does not grant You any independent rights to the ArchiMate specification

• For commercial use of the ArchiMate specification outside of this Application, You may need to obtain Your own license from The Open Group

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6.2 TOGAF® Framework

The Application incorporates concepts aligned with The Open Group Architecture Framework (TOGAF®). TOGAF® is a registered trademark of The Open Group. This Application is not certified by The Open Group, and the implementation of TOGAF concepts is provided as a reference implementation for enterprise architecture work.

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6.3 Open Source Components

The Licensed Application incorporates open-source software components, including but not limited to llama.cpp (MIT License). A complete list of open-source components and their respective licenses is available within the Application under Settings > About > Open Source Licenses. Your use of the Application constitutes acceptance of the applicable open-source license terms.

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7. SUBSCRIPTIONS AND PAYMENTS

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7.1 Subscription Services

The Licensed Application may offer subscription-based access to premium features ("Subscription Services"). Subscription Services are optional and provide enhanced functionality beyond the basic features of the Application.

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7.2 Billing and Payment

All purchases and subscriptions are processed through Apple's App Store. By subscribing, You authorise Apple to charge Your designated payment method. The Licensor does not directly collect or process payment information. All billing inquiries, payment disputes, and refund requests must be directed to Apple in accordance with Apple's policies and procedures.

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7.3 Auto-Renewal

SUBSCRIPTIONS AUTOMATICALLY RENEW. Your subscription will automatically renew at the end of each subscription period (weekly, monthly, or annually, as applicable) unless You cancel at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period at the then-current subscription rate.

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7.4 Free Trials

If a free trial is offered, it will convert to a paid subscription at the end of the trial period unless cancelled at least 24 hours before the trial ends. Any unused portion of a free trial period will be forfeited when You purchase a subscription.

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7.5 Managing and Cancelling Subscriptions

You may manage or cancel Your subscription at any time through Your Apple ID account settings. To cancel:

• On iPhone/iPad: Go to Settings > [Your Name] > Subscriptions > ArchitectBuddies > Cancel Subscription

• On Mac: Open the App Store > Account > Subscriptions > ArchitectBuddies > Cancel Subscription

• Cancellation takes effect at the end of the current billing period. You will retain access to Subscription Services until then.

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7.6 Price Changes

The Licensor reserves the right to change subscription prices. Price changes will take effect at the start of the next subscription period following the date of the price change. Apple will notify You of any price changes in accordance with applicable law. Your continued use of the Subscription Services after the price change takes effect constitutes Your agreement to pay the new price.

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7.7 Refunds

Refunds are handled by Apple in accordance with Apple's refund policies. To request a refund, visit reportaproblem.apple.com. The Licensor has no control over Apple's refund decisions. Except as required by applicable law, all subscription fees are non-refundable.

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7.8 Feature Availability

Subscription features are subject to change. The Licensor may add, modify, or remove features included in Subscription Services. If the Licensor materially reduces the features available to subscribers, You may cancel Your subscription effective at the end of the current billing period. Subject to Section 4 (Service Availability and Modifications), no partial refunds or credits will be issued for feature changes during a billing period.

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7.9 Third-Party Service Costs

Subscription fees cover access to the Application's features only. Subscription fees do NOT include costs for third-party AI services. If You use cloud-based AI features with Your own API keys, You are solely responsible for any charges incurred from those third-party providers (OpenAI, Google, Anthropic, etc.).

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8. DATA COLLECTION AND USE

8.1 Technical Data Collection. You agree that the Licensor may collect and use technical data and related information—including but not limited to technical information about Your device, system and application software, and peripherals—that is gathered periodically to facilitate the provision of software updates, product support, and other services related to the Licensed Application. The Licensor may use this information, as long as it is in a form that does not personally identify You, to improve products or to provide services or technologies to You.

8.2 User Content. Your architecture models, diagrams, and associated data ("User Content") created using the Application remain Your property. When You use cloud-based AI services, portions of Your User Content may be transmitted to third-party AI service providers in accordance with their respective terms. You are responsible for ensuring You have the right to share any data You submit to AI services.

8.3 Privacy Policy. Our collection and use of personal information is further described in our Privacy Policy, available at www.architectbuddies.com/privacy-policy. By using the Licensed Application, You agree to our Privacy Policy.

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9. THIRD-PARTY TERMS OF AGREEMENT

You must comply with applicable third-party terms of agreement when using the Licensed Application. These include but are not limited to:

• Your wireless data service agreement when using network features

• OpenAI Terms of Use and Usage Policies when using OpenAI-powered features

• Google APIs Terms of Service and Gemini API Additional Terms when using Google AI features

• Anthropic Terms of Service when using Claude API features

• Meta's Llama Community License Agreement for any Llama models used

• Apple Media Services Terms and Conditions

You are solely responsible for Your compliance with these third-party terms.

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10. MAINTENANCE AND SUPPORT

The Licensor is solely responsible for providing any maintenance and support services with respect to the Licensed Application, as specified in this Agreement, or as required under applicable law. You and the Licensor acknowledge that Apple has no obligation whatsoever to furnish any maintenance and support services with respect to the Licensed Application.

Support Contact: For questions, complaints, or claims with respect to the Licensed Application, please contact us at: support@architectbuddies.com

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11. WARRANTY

11.1 Warranty Disclaimer. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE LICENSED APPLICATION AND ANY SERVICES PERFORMED OR PROVIDED BY THE LICENSED APPLICATION ARE PROVIDED "AS IS" AND "AS AVAILABLE," WITH ALL FAULTS AND WITHOUT WARRANTY OF ANY KIND, AND THE LICENSOR HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS WITH RESPECT TO THE LICENSED APPLICATION AND ANY SERVICES, EITHER EXPRESS, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES AND/OR CONDITIONS OF MERCHANTABILITY, OF SATISFACTORY QUALITY, OF FITNESS FOR A PARTICULAR PURPOSE, OF ACCURACY, OF QUIET ENJOYMENT, AND OF NONINFRINGEMENT OF THIRD-PARTY RIGHTS.

11.2 Apple's Limited Warranty Obligation. In the event of any failure of the Licensed Application to conform to any applicable warranty, You may notify Apple, and Apple will refund the purchase price for the Licensed Application to You. To the maximum extent permitted by applicable law, Apple will have no other warranty obligation whatsoever with respect to the Licensed Application, and any other claims, losses, liabilities, damages, costs, or expenses attributable to any failure to conform to any warranty will be the Licensor's sole responsibility.

11.3 AI Services Disclaimer. WITHOUT LIMITING THE FOREGOING, THE LICENSOR SPECIFICALLY DISCLAIMS ANY WARRANTY REGARDING: (I) THE ACCURACY, RELIABILITY, OR COMPLETENESS OF ANY AI-GENERATED CONTENT; (II) THE AVAILABILITY, PERFORMANCE, OR CONTINUITY OF ANY THIRD-PARTY AI SERVICES; (III) THE SUITABILITY OF AI-GENERATED OUTPUT FOR ANY PARTICULAR USE CASE; (IV) THE PERFORMANCE OF ON-DEVICE AI PROCESSING ON YOUR SPECIFIC HARDWARE.

11.4 Third-Party Service Disclaimer. THE LICENSOR MAKES NO WARRANTY OR REPRESENTATION REGARDING THE CONTINUED AVAILABILITY, FUNCTIONALITY, OR COMPATIBILITY OF ANY THIRD-PARTY SERVICES, APIS, OR PLATFORMS. FEATURES DEPENDENT ON THIRD-PARTY SERVICES ARE PROVIDED ON AN "AS AVAILABLE" BASIS AND MAY BE MODIFIED, SUSPENDED, OR DISCONTINUED AT ANY TIME WITHOUT NOTICE OR LIABILITY.

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12. LIMITATION OF LIABILITY

TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT SHALL THE LICENSOR BE LIABLE FOR PERSONAL INJURY OR ANY INCIDENTAL, SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER, INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, LOSS OF DATA, BUSINESS INTERRUPTION, OR ANY OTHER COMMERCIAL DAMAGES OR LOSSES, ARISING OUT OF OR RELATED TO YOUR USE OF OR INABILITY TO USE THE LICENSED APPLICATION, HOWEVER CAUSED, REGARDLESS OF THE THEORY OF LIABILITY (CONTRACT, TORT, OR OTHERWISE) AND EVEN IF THE LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

WITHOUT LIMITING THE FOREGOING, THE LICENSOR SHALL NOT BE LIABLE FOR ANY DAMAGES, LOSSES, OR COSTS ARISING FROM: (I) CHANGES TO, DISCONTINUATION OF, OR UNAVAILABILITY OF THIRD-PARTY SERVICES OR APIS; (II) MODIFICATIONS TO APPLICATION FEATURES; (III) INTERRUPTIONS OR DELAYS IN SERVICE; OR (IV) YOUR RELIANCE ON AI-GENERATED CONTENT.

IN NO EVENT SHALL THE LICENSOR'S TOTAL LIABILITY TO YOU FOR ALL DAMAGES (OTHER THAN AS MAY BE REQUIRED BY APPLICABLE LAW IN CASES INVOLVING PERSONAL INJURY) EXCEED THE GREATER OF: (I) FIFTY POUNDS STERLING (£50.00); OR (II) THE AMOUNTS PAID BY YOU TO THE LICENSOR (VIA APPLE) DURING THE TWELVE (12) MONTHS IMMEDIATELY PRECEDING THE EVENT GIVING RISE TO THE CLAIM.

SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CERTAIN DAMAGES, SO SOME OF THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU. IN SUCH JURISDICTIONS, THE LICENSOR'S LIABILITY IS LIMITED TO THE MAXIMUM EXTENT PERMITTED BY LAW.

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13. PRODUCT CLAIMS

You and the Licensor acknowledge that the Licensor, not Apple, is responsible for addressing any claims of the End User or any third party relating to the Licensed Application or the End User's possession and/or use of that Licensed Application, including, but not limited to:

• Product liability claims

• Any claim that the Licensed Application fails to conform to any applicable legal or regulatory requirement

• Claims arising under consumer protection, privacy, or similar legislation

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14. INTELLECTUAL PROPERTY RIGHTS

You and the Licensor acknowledge that, in the event of any third-party claim that the Licensed Application or the End User's possession and use of that Licensed Application infringes that third party's intellectual property rights, the Licensor, not Apple, will be solely responsible for the investigation, defense, settlement, and discharge of any such intellectual property infringement claim.

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15. LEGAL COMPLIANCE AND EXPORT RESTRICTIONS

You represent and warrant that:

• You are not located in a country that is subject to a U.S. Government embargo, or that has been designated by the U.S. Government as a "terrorist supporting" country

• You are not listed on any U.S. Government list of prohibited or restricted parties

You may not use or otherwise export or re-export the Licensed Application except as authorized by United States law, United Kingdom law, and the laws of the jurisdiction in which the Licensed Application was obtained.

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16. TERMINATION

This Agreement is effective until terminated by You or the Licensor. Your rights under this Agreement will terminate automatically if You fail to comply with any of its terms. Upon termination, You must cease all use of the Licensed Application and delete all copies from Your devices. Any active subscriptions should be cancelled through Your Apple ID account settings.

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17. GOVERNING LAW AND DISPUTE RESOLUTION

This Agreement and the relationship between You and the Licensor shall be governed by the laws of England and Wales, without regard to its conflict of law provisions. You and the Licensor agree to submit to the exclusive jurisdiction of the courts of England and Wales to resolve any dispute or claim arising from this Agreement.

If You are a consumer habitually resident in the European Union, European Economic Area, Switzerland, or the United Kingdom, You shall also benefit from any mandatory provisions of the law of Your country of residence. Nothing in this Agreement affects Your rights as a consumer to rely on such mandatory provisions of local law.

Specifically excluded from application to this Agreement is that law known as the United Nations Convention on the International Sale of Goods.

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18. CONTACT INFORMATION

For any questions, complaints, or claims with respect to the Licensed Application, please contact:

Hytsioaboa Software Ltd.

Trading as HytsioStudio

1 Pastoral Road

Thornbury, BS35 1BG

United Kingdom

Email: support@architectbuddies.com

Website: www.ArchitectBuddies.com

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19. ENTIRE AGREEMENT

This Agreement constitutes the entire agreement between You and the Licensor with respect to the Licensed Application and supersedes all prior or contemporaneous understandings regarding such subject matter. No amendment to or modification of this Agreement will be binding unless in writing and signed by the Licensor. Any translation of this Agreement is done for local requirements and in the event of a dispute between the English and any non-English version, the English version of this Agreement shall govern.

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BY DOWNLOADING, INSTALLING, OR USING THE LICENSED APPLICATION, YOU ACKNOWLEDGE THAT YOU HAVE READ THIS AGREEMENT, UNDERSTAND IT, AND AGREE TO BE BOUND BY ITS TERMS AND CONDITIONS.