Terms of service

1. Description of Service

Electronics Architect provides web-based software for power architecture design, including circuit solving, Monte Carlo and derating analysis, part search, AI-assisted features, report and BOM export, and programmatic access through an API and an MCP server. It is offered on Free, Pro and Team plans. We may add, change or remove features. If we remove a paid feature in a way that materially reduces what you paid for, we will tell you in advance where we reasonably can.

2. User Responsibilities and Engineering Disclaimer

The Service is intended to assist professionals and hobbyists in designing and analyzing power architectures. However, it is an analysis tool and does not replace professional engineering judgment, testing, or certification.

No Guarantee of Accuracy: While we strive for accuracy, Horton-Labs LLC does not guarantee that the calculations, part search results (including live pricing), or Monte Carlo simulations are error-free.

AI Output: Designs, reviews, and extracted parameters produced by the AI features are generated by a language model. They can be wrong, incomplete or inconsistent, and must be checked before you rely on them.

Educational & Editorial Content: Any articles, tutorials, or reference materials provided on the Service are for educational purposes only and may not reflect the most current engineering standards or best practices.

High-Risk Applications: The Service is not certified for use in designing mission-critical systems where failure could lead to injury, death, or severe property/environmental damage. If you use the Service for designs in aerospace, defense, medical devices, or life-support systems, you do so entirely at your own risk and assume all liability. All schematics and outputs must be independently verified by a qualified engineer before production.

3. Accounts, Keys and Cloud Saves

You must be at least 18 years old, and able to form a binding contract where you live, to use the Service. The age limit is a condition of Google's terms for the Gemini API, which our AI features use; it is not a content rating. Give accurate account information and keep your password and keys confidential. You are responsible for activity under your account, including activity by anyone using an API key or MCP connection you created. If you believe a key has leaked, revoke it from Account Settings and tell us.

Teams: on a Team plan, the team's owner and admins control membership, can see and edit designs saved to the team, and can issue keys that act on those designs.

Cloud saves: Horton-Labs LLC is not responsible for any loss of schematic data, BOM files, or design documents. We strongly encourage you to utilize the local file save/load feature to back up critical work.

4. Intellectual Property

The software, interfaces, algorithms, and original content of the Service are the exclusive property of Horton-Labs LLC. Your individual schematics, power architectures, and design data remain your intellectual property. You give us permission to store, process, and transmit your design data only as needed to operate the Service for you, including sending it to the AI provider when you use an AI feature, as our Privacy Policy describes.

Community Contributions. Separately from your design data, the Service includes a shared component knowledge base that users may contribute to. When you voluntarily submit component attributes, corrections, revisions, measurements, citations, or votes to that shared knowledge base, you grant Horton-Labs LLC a perpetual, irrevocable, worldwide, non-exclusive, royalty-free, transferable, and sublicensable license to use, reproduce, modify, adapt, publish, distribute, and commercially exploit that contribution in any medium, including in derivative databases and products. This grant applies only to contributions you affirmatively submit to the shared knowledge base — it does not apply to your private schematics, power architectures, or design data, which remain yours under the paragraph above.

You represent and warrant that you have the right to make each contribution, and that it does not contain information that is confidential or proprietary to any third party, including data obtained under a non-disclosure agreement or from unpublished manufacturer documentation. We may remove any contribution at our discretion.

Public Posts and Share Links. When you post to Community Design Review or share a design by public link, you let us display that content to anyone who visits it, until you delete the post or turn the link off.

5. Plans, Billing and Renewal

Current prices are shown in the pricing section of the home page and at checkout. Payments are processed by Stripe. Pro and Team plans are subscriptions billed in advance, monthly or annually, and renew automatically at the end of each period until you cancel. Free trial: if your first subscription includes a free trial, you are not charged during the trial; unless you cancel before it ends, it converts to a paid subscription and you are charged the price shown at checkout. One trial per customer. Team plans are billed per seat, and adding seats changes the amount of your next charges. Prices do not include any sales tax, VAT or similar taxes that may apply.

If we change the price of your plan, we will tell you by email at least 30 days before the change applies to you. The new price takes effect at your next renewal after that notice, and you may cancel before then.

If a payment fails, we may retry it, and if it still is not paid, your account may move to the Free plan. Your designs are not deleted when that happens.

6. Cancellation and Refunds

Cancelling: you can cancel at any time from Account Settings, via Manage Billing. Cancellation takes effect at the end of the period you have already paid for. You keep paid features until then, and your account then moves to the Free plan. Your designs are kept.

Refunds: fees are non-refundable, and we do not give refunds or credits for partial periods, unused seats, or unused features, except where the law requires otherwise. If you were charged in error, for example twice or after you had cancelled, email us and we will refund the mistaken charge.

Top-up packs: a top-up pack is a one-time purchase of extra usage, drawn on after your monthly allowance runs out. Packs do not expire while your account is open, are non-refundable once any part has been used, cannot be transferred, and are lost if you delete your account.

7. API, MCP and Usage Limits

Each plan includes usage limits, such as rate limits and a monthly allowance of AI calls and Monte Carlo runs, as described in the pricing section and in the developer documentation. We may throttle or refuse requests over those limits, and we may adjust limits to protect the Service. Limits in the documentation for your plan will not be reduced during a period you have already paid for, except to stop abuse.

You may use the API and the MCP server to build your own tools and workflows and to connect AI assistants to your account. You may not resell, sublicense, or offer access to the Service or its results as a stand-alone service to others, or share one account or key between people to get around per-seat pricing.

8. Acceptable Use

You agree not to:

• reverse engineer, decompile, or try to extract the Service's source code, solver, or models, except where the law expressly allows it;
• systematically query the Service to copy its component data or reconstruct its models, or scrape it with automated tools other than the API and MCP server we provide;
• test, probe, or bypass security, authentication, rate limits, or usage limits, or create multiple accounts to get around plan limits;
• interfere with or overload the Service or other users' use of it;
• upload or publish content that is unlawful, infringing, malicious, or that you do not have the right to share;
• use the Service in violation of export control or sanctions laws.

The AI features run on Google's Gemini API, so when you use them you must also follow Google's Generative AI Prohibited Use Policy.

If you find a security vulnerability, please report it to ea.support@horton-labs.com rather than exploiting it.

9. Suspension and Termination

You can stop using the Service and delete your account at any time from Account Settings. We may suspend or close an account that breaks these Terms, puts the Service or other users at risk, or has not paid. Where reasonable we will warn you first and give you a chance to export your designs. If we close a paid account without cause, we will refund the unused part of your current period. If we ever shut the Service down entirely, we will give at least 30 days' notice so you can export your designs.

Sections 2, 4 (as to community contributions), 10, 11, 12 and 13 continue to apply after your account ends.

12. Indemnification

You agree to defend, indemnify, and hold harmless Horton-Labs LLC from any claims, damages, obligations, losses, liabilities, costs, or debt, and expenses (including attorney's fees) arising from your use of the Service, your violation of these Terms, or your violation of any third-party right, including intellectual property or privacy rights.

13. Governing Law

These Terms shall be governed by and construed in accordance with the laws of the State of New York, without regard to its conflict of law provisions. Any legal action or proceeding arising under these Terms will be brought exclusively in the state or federal courts located in New York. Nothing in these Terms takes away any consumer rights you have under the law of the country where you live.

14. Changes to these Terms

We may update these Terms. We will change the date at the top, and for significant changes we will email account holders or show a notice in the app at least 14 days before they take effect. If you keep using the Service after that, the new Terms apply. If you do not agree, you can cancel before they take effect.

15. General

These Terms and the Privacy Policy are the whole agreement between you and us about the Service. If any part is found unenforceable, the rest still applies. If we do not enforce a right straight away, we have not given it up. You may not transfer these Terms without our consent; we may transfer them to a successor to the business.

16. Contact

Horton-Labs LLC · ea.support@horton-labs.com