Terms of Service & End User License Agreement

This agreement is between you and Ethoseen LLC, an Oregon limited liability company (“Ethoseen,” “we,” “us”).

It governs your use of Sightline: the desktop application, the iOS and watchOS companion apps when paired with it, the machine-learning models and adapters it downloads, and the sightlinebehavior.com website and services (together, the “Software”).

By clicking “I agree,” creating an activation, starting a trial, or purchasing a Subscription, you accept these terms and represent that you are at least 18 years old and able to form a binding contract. If you do not agree, do not use the Software.

Plain-language summary (not a substitute for the terms): You’re buying a license for one person on one desktop computer. Your observation data and your reports are yours and stay on your machine. Our AI produces drafts. You are the professional, and your judgment governs anything that goes into an evaluation. You are responsible for recording lawfully. Don’t reverse-engineer the app or use it to build a competitor. Annual plans have a 30-day refund policy.

1. Definitions

“Desktop App”: the Sightline application for macOS and Windows.
“Companion App”: the Sightline companion for iPhone and Apple Watch.
“Models”: third-party machine-learning model files the Software downloads (base language models, speech-recognition and diarization models).
“Adapters”: Ethoseen’s proprietary fine-tuned model weights and adapter files, delivered only to licensed installations.
“Outputs”: any content the Software generates from your data, including AI-drafted summaries, analyses, and report sections.
“Your Content”: data you create or record with the Software: students, sessions, observations, notes, audio, exports, and Outputs.
“Subscription”: a paid Starter or Pro plan.

2. Your license

Subject to these terms, we grant you a personal, non-exclusive, non-transferable, non-sublicensable license to install and use the Software for your own professional or personal use.

One person, one desktop. A license (including the free tier and trial) is personal to you as an individual and may be activated on one desktop device at a time. You may deactivate a device to move your license to another. The Companion App pairs with your licensed desktop and does not consume an activation.
Employer reimbursement doesn’t transfer the license. If your school, district, or employer reimburses or pays for your Subscription, the license remains yours individually; the payer acquires no rights, seats, or access. Institutions interested in site licensing: contact us.
Licensed, not sold. The Software, including the Adapters and Ethoseen’s prompts and protocols, is licensed to you, not sold. We and our licensors retain all rights not expressly granted.

3. Restrictions

You may not, and may not permit or help anyone else to:

Reverse-engineer: decompile, disassemble, or otherwise attempt to derive the source code, prompts, protocols, or internal logic of the Software, or extract any Model or Adapter weights from it, except to the limited extent applicable law expressly permits such activity notwithstanding this restriction, and in that case only for the purpose the law permits, and only after first requesting the needed interoperability information from us and giving us a reasonable opportunity to provide it.
Circumvent protections: bypass, disable, or interfere with license validation, activation limits, trial enforcement, entitlement checks, model delivery authentication, or encryption.
Build a competitor with it: use the Software, or any Output or information derived from probing or systematically exercising it, to develop, train, or improve a product or machine-learning model that competes with the Software, including fine-tuning any model on Outputs or training on systematically extracted Outputs. Ordinary professional use of Outputs in your evaluations is not competitive development.
Extract or redistribute the Adapters: copy an Adapter out of the Software, run it outside the Software, fine-tune on top of it, or make it available to anyone else. Adapters are licensed for use inside the Software only.
Share, resell, or transfer your license, license key, or trial credential, or use another person’s.
Misrepresent Outputs: present an Output as the work of a qualified professional without the review Section 7 requires.

A breach of this Section 3, in particular extraction or redistribution of the Adapters, would cause harm that money damages cannot adequately remedy. You agree that we may seek injunctive or other equitable relief for such a breach, in addition to any other remedy, without needing to prove monetary loss.

The Software can record audio and can capture observation data about people who are not parties to this agreement.

You are responsible for recording lawfully. You represent and warrant that, before using any recording feature, you have obtained every consent, authorization, notice, and approval required by the law of your jurisdiction and by the policies of the school, district, agency, or employer in whose setting you are working. Consent requirements for recording conversations vary by state, and several states require the consent of every party to a private conversation. Determining and satisfying those requirements is your responsibility, not ours, and the Software does not do it for you.
You are responsible for your authority to record about a person. You further represent that you have the authority to create, hold, and process records concerning any student, client, or other individual you document with the Software.
Your inputs. You represent that the observation data, notes, and other information you enter are accurate to the best of your professional knowledge. Outputs are generated from what you record; inaccurate inputs produce inaccurate drafts.
Recording laws can carry criminal penalties. Some state recording and eavesdropping statutes impose criminal liability and statutory damages, and where a required party to a conversation is a minor, effective consent may have to come from a parent, guardian, or another person with legal authority to give it. Knowing which rules apply in your setting is part of the responsibility you accept above.
Recordings can be education records. Audio and observation records you create about a student may be education records under FERPA and related law, with parent access and inspection rights, and a recording may capture other students or staff who have their own privacy interests. Access, redaction, retention, and disclosure of what you record are matters between you, your institution, and the families you serve; we hold no copy and have no role in them.

5. Tiers, trial, and free tier

Free tier. Requires no payment or account. Its feature set is described on the website and may change.
Paid tiers. Starter and Pro. Their feature sets are described on the website and may change.
Trial. New users receive one trial of the Pro tier lasting 21 calendar days from first activation: one trial per person, enforced as one trial per desktop device. To enforce this, the Software derives a hashed device identifier from your hardware and records it with our trial service; the identifier is not derived from and does not contain Your Content. See the Privacy Policy. Obtaining additional trials by resetting, spoofing, or rotating device identifiers violates Section 3. Trials are not extendable. When a trial ends, the Software reverts to the free tier. Your Content is never deleted or held hostage. Everything you created remains on your machine and remains exportable.
Lapse is non-destructive. The same applies when a Subscription ends for any reason: the Software reverts to the free tier and all of Your Content remains intact and locally accessible.

6. Subscriptions, billing, and refunds

Billing. Subscriptions are billed monthly or annually through our payment processor. Prices are posted on the website. Taxes may apply. Subscriptions renew automatically until cancelled; cancellation takes effect at the end of the paid period.
How to cancel. You can cancel at any time, online or in the app, by the same means you used to subscribe, with no phone call, email, or human interaction required. Cancellation stops the next renewal charge; you keep paid features through the end of the period you paid for. The renewal terms (amount, frequency, and how to cancel) are disclosed at checkout, immediately above the control you use to confirm the purchase, and completing checkout is your affirmative consent to those terms and the recurring charge.
Launch pricing. Promotional “launch” rates, where offered, remain in effect for as long as the Subscription remains active and continuously paid; a lapsed Subscription re-subscribes at then-current pricing.
30-day refund policy (annual plans). If you are unhappy with your first annual Subscription purchase for any reason, tell us within 30 days of the charge and we will refund it in full. One refund under this policy per customer. Monthly plans may be cancelled anytime; refunds on monthly billing are at our discretion. This is a refund policy, not a warranty of the Software’s performance.
Price changes. We may change prices with at least 30 days’ notice; changes apply at your next renewal. Launch-price locks survive price changes per above.
EU and UK right of withdrawal. If you are a consumer in the European Union or the United Kingdom, you normally have 14 days to withdraw from a purchase of digital services. When you start a Subscription or trial and the Software becomes available to you right away, you expressly ask us to begin providing it immediately, and you acknowledge that once we have done so you lose the right to withdraw from the part already provided. This does not affect the 30-day refund policy above, which we offer on top of any statutory right.

7. AI features and professional responsibility

Outputs are drafts. The Software’s AI features generate draft text and analyses from Your Content, on your device. Outputs may contain errors or mischaracterizations.
You are the professional. The Software is a documentation and drafting tool. It is not a medical device, does not diagnose any condition, and does not make eligibility, placement, disciplinary, clinical, or educational determinations. It is designed and licensed to operate only with the professional review this Section requires, and you may not use it to make, or as the substantial basis of, any determination about a person without that review. No Output is a decision. You must review every Output and apply your independent professional judgment before using it in any evaluation, report, IEP, legal proceeding, or decision affecting a student or client. You are responsible for the accuracy and appropriateness of any document you sign or submit, and you accept that responsibility as a condition of using the AI features. You represent that you hold, or work under the supervision of someone who holds, the qualifications your role and jurisdiction require for the assessments you use the Software to support. Review means more than reading: before an Output goes into anything you sign or submit, confirm that its factual statements are supported by your own records and data.
Not the sole basis. An Output must not be the sole basis for any assessment conclusion or recommendation. This mirrors the standards your own profession already imposes.
You own your Outputs. As between you and us, Your Content, including Outputs, belongs to you. We claim no rights to it, and (because processing is local) we never receive it.

8. Your data and privacy

Local-first by design. Your Content is stored locally on your device. We operate no cloud storage of Your Content and have no ability to access it. Backups are your responsibility, and so is removal. Securely delete Your Content before selling, transferring, or disposing of a device, since we cannot do it for you.
What does leave your machine (license validation, opt-in analytics, opt-in crash reports, update checks, model downloads, trial enforcement, and feedback you choose to send) is described exhaustively in the Privacy Policy, which is part of this agreement. Analytics and crash reporting are disabled unless you enable them.
Student records. You (and, where applicable, your institution) are the custodian of any student or client records you create with the Software. Because Your Content is processed and stored only on your device and is never transmitted to us, we do not receive, collect, maintain, or have access to education records or personally identifiable information from education records, and we hold no student data of any kind. Your use of the Software therefore involves no disclosure of education records to us, and we need no consent or FERPA exception (including the school-official provision, 34 C.F.R. § 99.31(a)(1)) because no disclosure to us occurs. Some state student-privacy laws define a covered provider by the nature of a product marketed for K-12 use rather than by whether student data reaches the vendor; where such a law applies to us, we meet its substantive requirements, because we do not and will not use student information for advertising, profiling, sale, or any other purpose, and there is nothing on our servers to disclose, delete, or produce. You remain responsible for complying with the laws and policies that apply to your own practice, including FERPA, IDEA, and state law, and nothing in this agreement is legal advice about those obligations.

9. License validation and offline use

The Software validates paid licenses periodically against our licensing service and continues working offline between validations, with a grace window after a failed validation. If validation cannot succeed for an extended period, the Software reverts to the free tier until validation succeeds, non-destructively, per Section 5. Tampering with the system clock or validation mechanism is a violation of Section 3.

If we ever permanently discontinue the licensing service, we will release an update that keeps paid features working without validation for the remainder of any paid Subscription term, or refund the unused portion of what you prepaid. Your local software does not stop working because we do.

10. Support

We provide support at our discretion through the channels listed on the website. We do not commit to any response time, availability window, or service level, and support is not a condition of your license.

11. Third-party models and components

Models are third-party. The Models (currently including Alibaba Qwen, OpenAI Whisper, and NVIDIA speech models) are developed by third parties, downloaded separately at your direction from third-party or Ethoseen-operated servers, and are governed by their own licenses (identified in the third-party notices file), which you accept by downloading them.
Ethoseen’s restrictions in Section 3 apply to the Adapters; the Models remain governed by their own terms.
Open-source components. The Software includes open-source software listed with its licenses in the third-party notices file accessible from the app and website. Those licenses govern those components.
Fonts and other licensed assets included in the Software are licensed for use within the Software only and may not be extracted or reused.

12. Updates

The Desktop App checks for updates and downloads cryptographically signed updates from our update service. Update checks transmit no student data. We may require a current version for continued license validation or support. Features may change between versions; we will not remove your ability to access or export Your Content.

13. Companion App

The Companion App download from the App Store is governed by Apple’s standard Licensed Application End User License Agreement; these terms additionally apply the moment you pair it with a licensed Desktop App, and Sections 3, 4, 7, and 8 apply to your use of it. The Companion App stores observation data locally on the phone only until it transfers to your desktop, as described in the Companion Privacy Policy.

Your license to the Companion App is limited to use on Apple-branded devices that you own or control, as permitted by the Usage Rules in the App Store Terms of Service, except as otherwise allowed by those rules for Family Sharing. Ethoseen, not Apple, is solely responsible for the Companion App and for any maintenance and support for it, to the extent Section 10 or applicable law requires any. You must comply with applicable third-party terms of agreement (for example, your wireless data agreement) when using the Companion App.

Apple terms. This agreement is between you and Ethoseen only, not Apple. Ethoseen, not Apple, is responsible for any product warranties relating to the Companion App, whether express or implied by law, to the extent not disclaimed; if the Companion App fails to conform to an applicable warranty, you may notify Apple, and Apple will refund any purchase price you paid for it (the Companion App is free, so no refund will be due). Apple has no obligation to furnish maintenance or support for the Companion App and is not responsible for addressing any claim relating to it (including product liability, regulatory compliance, consumer-protection, privacy, or IP claims). Apple and its subsidiaries are third-party beneficiaries of this Section 13 and may enforce it against you. You represent that you are not located in an embargoed country and are not on any U.S. government restricted-party list.

14. Term and termination

These terms apply for as long as you use the Software.
You can stop at any time: cancel any Subscription and delete the Software. Your Content remains yours; export it before deleting.
We may suspend or terminate your license, including the free-tier license, if you materially breach these terms (in particular Sections 3 and 4) and, where the breach is curable, you fail to cure it within 14 days of notice. We may also terminate for uncured non-payment. Upon termination for breach, your right to use the Software ends, paid features cease at the next license validation, and you must, on our request, delete the Software and all Adapters and confirm you have done so. Sections 1, 3, 4, 7, 8, 11, 13, and 15–20 survive termination.
Termination gives us no right to touch Your Content and does not affect your local access to it in your own files, though the Software’s paid features will cease to function.

15. Warranty disclaimer

Except for Ethoseen’s express refund policy in Section 6, and subject to the professional-responsibility terms in Section 7, the Software is provided “as is” and “as available,” with all faults, and without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, non-infringement, or that the Software or Outputs will be accurate, error-free, or uninterrupted. To the extent an implied warranty cannot be disclaimed under applicable law, it is limited in duration to 30 days from first use. Some jurisdictions do not allow certain disclaimers or duration limits; in that case they apply to the fullest extent permitted. No oral or written information or advice from us creates any warranty.

16. Limitation of liability

To the fullest extent permitted by law: (a) neither party is liable for indirect, incidental, special, consequential, or punitive damages, or lost profits or data; and (b) our total liability under these terms is capped at the amounts you paid us in the 12 months before the event giving rise to the claim (or $50 if you have paid nothing). Neither the exclusion in (a) nor the cap in (b) applies to your breach of Section 3 or Section 4, to your indemnity obligations under Section 17, or to either party’s fraud or willful misconduct. Each provision of Sections 15–16 applies even if a remedy fails of its essential purpose.

17. Indemnity

You will defend and indemnify us against third-party claims arising from your breach of Section 3 or Section 4, or your use of Outputs in violation of Section 7.

18. Governing law and disputes

These terms are governed by the laws of the State of Oregon, without regard to conflict-of-laws rules. The state courts located in Lane County, Oregon and the United States District Court for the District of Oregon have exclusive jurisdiction and venue, and both parties consent to personal jurisdiction there. No mandatory arbitration. No jury-trial waiver is included. Before filing any claim, the parties will first try to resolve the dispute informally: send a written description of the dispute to the other party’s notice address (Section 20) and allow 30 days for resolution. Either party may bring a qualifying claim in small-claims court instead of the courts above.

19. Changes to these terms

We may update these terms. Updated terms are presented in the app, and you accept them there before continuing to use the Software. We do not rely on silent continued use as acceptance, because free-tier users have no account through which we could otherwise reach them. For material changes we will give at least 30 days’ notice before the new terms take effect. The version and acceptance date you agreed to are recorded by the app. Changes to the Privacy Policy that materially affect how data is handled are treated as material changes to these terms and follow the same notice-and-acceptance process.

20. General

Entire agreement. These terms plus the Privacy Policy and, for the Companion App, the Companion Privacy Policy (each linked wherever you accept these terms) are the entire agreement and supersede prior discussions.
No third-party beneficiaries. Except for Apple and its subsidiaries under Section 13, this agreement is for the benefit of you and Ethoseen only and creates no rights in any student, parent, client, employer, institution, or other person.
Notices. We give you notice in the app (deemed given when the app next presents it) and, for paid subscribers, by email to the billing address on file. You give us notice at support@sightlinebehavior.com or by mail to Ethoseen LLC, 1538 E 25th Avenue, Eugene, OR 97403, United States. Free-tier notice is in-app only, since we hold no contact information for you.
Feedback. If you send us feedback, suggestions, or ideas about the Software, you grant us a perpetual, irrevocable, royalty-free license to use them without restriction or obligation to you.
Force majeure. Neither party is liable for delay or failure caused by events beyond its reasonable control (including outages of third-party licensing, hosting, or model-distribution services), except for your payment obligations.
Assignment. You may not assign this agreement. We may assign it in connection with a merger, acquisition, or sale of assets.
Severability; waiver. If a provision is unenforceable, the rest stands. Failure to enforce is not waiver.
Mandatory consumer rights. Nothing in these terms excludes or limits any right or remedy you have under the consumer-protection law of your country of residence that cannot be excluded or limited by agreement. Where such a law conflicts with these terms, that law governs to the extent of the conflict.
Export. You may not use the Software in violation of applicable export and sanctions laws, and you represent that you are not located in an embargoed country and are not on any restricted-party list.
California users. Under Cal. Civ. Code § 1789.3, California residents may reach the Complaint Assistance Unit of the Division of Consumer Services of the California Department of Consumer Affairs in writing at 1625 North Market Blvd., Suite N 112, Sacramento, CA 95834, or by telephone at (800) 952-5210.