Terms of Service

1. Who you are contracting with, and acceptance

These Terms of Service ("Terms") are an agreement between you and Idea Engine LLC, a Wisconsin limited liability company ("Idea Engine", "we", "us"). Idea Engine operates LOS Analyzer, including the marketing site at los-analyzer.idea-engine.studio, the web app at app.los-analyzer.idea-engine.studio, the reports and pre-fill documents it produces, and The Docket email digest (together, the "Service").

You accept these Terms when you sign in, buy credits or a subscription, or otherwise use the Service. The sign-in page and the checkout say so next to the button, with links to these Terms, the Privacy Policy, the Refund Policy and the Disclaimer, which form part of these Terms. If you do not agree, do not use the Service.

If you use the Service on behalf of a company or other organisation, you confirm that you have authority to bind it, and "you" includes that organisation.

2. Eligibility

You must be at least 18 years old and able to form a binding contract. The Service is intended for professionals and businesses assessing proposed construction in the United States.

3. What the Service is, and what it is not

LOS Analyzer is a preliminary screening tool for proposed structures near airports. From the site, tower and runway information you enter or accept, it computes a three-dimensional, terrain-aware line-of-sight analysis from the control tower (with earth-curvature and standard atmospheric-refraction corrections), evaluates the 14 CFR Part 77 imaginary surfaces derived from FAA runway data, and produces a PDF screening report and an optional FAA Form 7460-1 pre-fill aid. The Disclaimer lists its data sources and known limits.

The Service is not: an FAA determination, an FAA aeronautical study, an obstruction evaluation, a survey, or engineering, surveying or legal advice. We do not provide professional engineering or surveying services, and using the Service does not create a professional or advisory relationship. Only the FAA issues determinations. LOS Analyzer is not affiliated with, endorsed by, or acting on behalf of the FAA.

A CLEAR result does not mean notice is not required. Whether 14 CFR 77.9 requires you to file FAA Form 7460-1 for a structure is your determination as the proponent. When in doubt, file.

You may use the Form 7460-1 pre-fill aid to prepare your own filing. You (the proponent) are solely responsible for verifying every value, including NAD83 coordinates and site elevation, which the FAA may require to a stated accuracy, and for filing through the FAA's OE/AAA portal. LOS Analyzer does not file on your behalf. Engage a licensed professional engineer or surveyor where your project, the FAA or your jurisdiction requires one.

4. Accounts

You sign in with a Google account through our authentication provider. Keep access to that account secure; you are responsible for activity under your LOS Analyzer account. Give us accurate information and tell us at support@idea-engine.studio if you believe your account has been misused.

5. Acceptable use

You agree not to:

• use the Service unlawfully, or to harm, disable or impair it;
• reverse engineer, decompile, or attempt to extract the Service's source code or models, except where the law allows it despite this restriction;
• scrape, crawl or bulk-extract data from the Service, or circumvent rate limits, security or authentication;
• represent a LOS Analyzer report as an FAA determination, a stamped engineering document, or the work of a licensed professional;
• upload malware, or content you have no right to use, including other people's personal data;
• resell or share access to your account, or share a single seat among several people.

We may suspend or terminate accounts that break these rules.

6. Your content and our licence

You keep ownership of the information you enter (site coordinates, geometry, tower and runway settings, project names) and anything you upload. You grant Idea Engine a limited, non-exclusive licence to host, process and display it only to provide the Service to you, including generating your reports and emails. We do not use your projects to train machine-learning models, and we do not sell them.

If you send us feedback or suggestions, we may use them without obligation to you.

7. Our software, and your licence to reports

Idea Engine owns the Service, its software, methodology write-ups and design. Subject to these Terms and payment, we grant you a non-exclusive, perpetual licence to use, copy and share the reports and pre-fill documents generated for your projects, including with your engineers, clients, airport sponsors, permitting authorities and the FAA. The underlying FAA and USGS data are public-domain government data; map imagery belongs to Google and is subject to Google's terms.

8. Prices, billing and taxes

Payments are processed by Stripe; we never see or store your full card number. Current prices:

• First screening: free, one per account.
• Single Analysis: $99 per report, one-time.
• 5-Pack: $399 for five report credits, one-time. Credits are non-transferable and do not expire.
• Annual Seat: $8,400 per user per year, an auto-renewing subscription with unlimited screening reports for one named user.

The price you pay is the one shown at checkout. Prices exclude any applicable sales or use taxes, which are your responsibility where they apply. Promotion codes are subject to the conditions shown with them and have no cash value. We may change prices with 30 days' notice; a change does not affect a subscription term you have already paid for.

9. Subscription renewal and cancellation

The Annual Seat is a subscription: $8,400 is charged today and again every 12 months until you cancel. Cancel any time in Manage billing (Stripe customer portal); access continues to the end of the paid year and the current term is not refunded.

To cancel, open the app, choose Credits → Manage billing, and cancel in the Stripe customer portal, or email support@idea-engine.studio. Stripe emails a receipt for each renewal. If a renewal payment fails, access pauses until payment succeeds.

10. Refunds

Unused report credits can be refunded within 60 days of purchase. Once a report has been generated, the credit or payment used for it is non-refundable. The Annual Seat renews automatically each year until cancelled; you can cancel any time in Manage billing, and access continues to the end of the paid year with no refund for the current term.

The full policy, including how to ask for a refund and what happens to a refunded purchase, is in the Refund Policy. When a payment is refunded, the credits, report access or subscription it bought are withdrawn.

11. Termination

You may stop using the Service at any time. To close your account and have your data deleted, use Account settings → Delete my account in the app, or email privacy@idea-engine.studio; the Privacy Policy explains what we delete and what we must keep. An Annual Seat that is still set to renew must be cancelled first. Unused credits are forfeited when an account is closed unless you ask for a refund of them within the 60-day refund window.

We may suspend or terminate your account if you breach these Terms or use the Service unlawfully. If we end the Service for reasons other than your breach, we will refund unused credits and the unused part of a prepaid subscription term.

12. Disclaimer of warranties

THE SERVICE, ITS REPORTS AND PRE-FILL DOCUMENTS ARE PROVIDED "AS IS" AND "AS AVAILABLE". TO THE FULLEST EXTENT PERMITTED BY LAW, IDEA ENGINE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, AND ANY WARRANTY THAT RESULTS WILL BE ACCURATE, COMPLETE, OR ERROR-FREE.

Results depend on third-party data (FAA runway data, public elevation models, map imagery) and on inputs you provide or accept, including derived tower eye heights. You are responsible for independently verifying any result before you rely on it.

13. Limitation of liability

TO THE MAXIMUM EXTENT PERMITTED BY LAW, IDEA ENGINE AND ITS MEMBERS, MANAGERS, EMPLOYEES AND AGENTS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, REVENUE, DATA, OR BUSINESS OPPORTUNITY, OR FOR COSTS OF DELAY, REDESIGN, OR CONSTRUCTION, EVEN IF ADVISED OF THE POSSIBILITY OF THEM.

Idea Engine's total liability for all claims arising out of or relating to the Service or these Terms, taken together, will not exceed the greater of (a) $100 or (b) the amount you paid us for the Service in the 12 months before the event giving rise to the claim.

Some jurisdictions do not allow some of these limits; where that is so, they apply to the fullest extent allowed.

14. Indemnity

You will indemnify and hold harmless Idea Engine and its members, managers, employees and agents from third-party claims, losses and costs (including reasonable attorneys' fees) arising out of: your use of the Service; your breach of these Terms; content you provide; or any structure, design, permit application, FAA filing, or construction decision made using the Service's output.

15. Governing law and venue

These Terms are governed by the laws of the State of Wisconsin, without regard to its conflict-of-laws rules. Any dispute arising out of or relating to these Terms or the Service will be brought exclusively in the state or federal courts located in the State of Wisconsin, and you and Idea Engine consent to their jurisdiction. Either party may bring an individual claim in a small-claims court that has jurisdiction. Before filing a claim, please email us at support@idea-engine.studio so we can try to resolve it informally within 30 days.

16. Changes to these Terms

We may update these Terms. We will post the new version here with a new "Last updated" date and, for material changes, email account holders at least 30 days before they take effect. Changes do not apply retroactively. Continuing to use the Service after a change takes effect means you accept it; if you do not, stop using the Service and ask us to close your account.

17. General

These Terms, with the Privacy Policy, Refund Policy and Disclaimer, are the entire agreement between you and Idea Engine about the Service. If a provision is found unenforceable, the rest remains in effect. Our failure to enforce a provision is not a waiver. You may not assign these Terms without our consent; we may assign them to a successor to the Service.