Terms of Service

1. Who can use Lessaro

You may use Lessaro if you are at least 18 years old and legally able to enter into a binding contract. Lessaro is designed for use by classroom teachers, school administrators, and others in professional educational roles.

Lessaro does not provide student-facing accounts. Students do not create accounts or access the Service directly. Teachers and administrators are solely responsible for the student information they enter into the Service.

2. Your account

You are responsible for maintaining the security of your account and all activity that occurs under it. You agree to:

• Provide accurate, current information during registration
• Keep your login credentials (including magic-link email access) secure.
• Notify us promptly of any unauthorized access at legal@brinl.com.

3. Subscriptions, billing, and refunds

Free and Pro plans

Lessaro offers a Free plan with core gradebook features and a Pro plan that adds Smart lesson planning, worksheet generation, and research-backed grounding. Pro subscriptions are billed monthly or annually, as you select at checkout.

Payment and renewal

Payments are processed by Stripe. By subscribing, you authorize us, through Stripe, to charge your payment method on the first day of each billing cycle. Pro subscriptions automatically renew at the end of each billing period unless you cancel.

Cancellation

You may cancel your Pro subscription at any time from your Lessaro Settings page or the Stripe Customer Portal. Monthly plans remain active until the end of the current billing cycle. Annual plans remain active until the end of the annual period.

Refunds

Annual plans are refundable within 14 days of initial purchase if you are not satisfied. After 14 days, annual plans are non-refundable but remain active through the paid period. Monthly plans are non-refundable once charged.

Price changes

We may change subscription prices with at least 30 days' notice. Price changes take effect at the next renewal. If you do not agree to a price change, cancel before the next renewal.

4. Your content and data

You own your content

You retain ownership of all content you upload, enter, or generate through the Service, including classes, students, assignments, grades, lesson plans, and worksheet files. We do not claim ownership of your educational records.

License to operate the Service

You grant us a limited license to store, process, and display your content solely to provide the Service to you and your authorized users. We do not sell your content, do not use it to train machine-learning models, and do not share it with third parties except as described in our Privacy Policy.

Student data responsibility

You are the educational agent responsible for any student data you enter into Lessaro. You represent and warrant that you have the legal authority to process this data under applicable laws (including, in the United States, the Family Educational Rights and Privacy Act (FERPA) and, where applicable, the Children's Online Privacy Protection Act (COPPA)). You are responsible for obtaining any parental or guardian consents required by law.

Data export and deletion

You can export your grades as CSV at any time from Settings. Account deletion and full data deletion are available on request by emailing legal@brinl.com. Deletion requests are processed within 30 days.

5. Smart-generated content

Lessaro uses language-model technology to generate lesson plans, worksheets, and other instructional materials (referred to as Smart features). You acknowledge the following about Smart- generated content:

• Smart outputs are generated programmatically and may contain errors, omissions, biases, or pedagogically inappropriate suggestions.
• You are a professional educator and are solely responsible for reviewing, adapting, and approving any Smart-generated content before using it with students.
• Smart outputs do not constitute professional teaching, curriculum design, or legal advice. They are suggestions intended to aid your own instructional planning.
• Lessaro draws on publicly-available education research sources as described on our Research page, but Smart-generated output is the model's own synthesis and is not a direct quotation of any source. Do not cite Smart output as if it were a primary source.
• We do not warrant that Smart outputs align with any particular curriculum standard, learning objective, or educational framework beyond the principles applied in our prompt engineering.

6. Acceptable use

You agree not to:

• Use the Service to violate any applicable law, including privacy or intellectual-property laws.
• Upload or generate content that is harmful, deceptive, harassing, obscene, or that infringes on any third party's rights.
• Attempt to access other users' accounts or data, or to reverse-engineer, scrape, or misuse the Service.
• Use the Service in any way that could damage, disable, overburden, or impair Lessaro's infrastructure.
• Resell, sublicense, or provide the Service to others outside your authorized use.
• Use the Smart-generation features to produce content that would violate any of the above.

We may suspend or terminate accounts that violate these rules, with or without notice depending on severity.

7. Our intellectual property

The Lessaro service, including its software, design, trademarks, and the curated research corpus (metadata and organization), belongs to Brinl LLC. You may not copy, modify, distribute, or create derivative works from the Service except as expressly permitted by these Terms.

The underlying public-domain and openly-licensed research sources (e.g., U.S. Institute of Education Sciences practice guides) retain their respective licenses. Our use of them is consistent with those licenses.

8. Termination

You may stop using Lessaro and delete your account at any time. We may suspend or terminate your access if you violate these Terms, if we determine continued service is not commercially viable, or if required by law. On termination, your access to the Service ends. Your data may be retained briefly to process refunds and then deleted.

9. Disclaimers

THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED. TO THE FULLEST EXTENT PERMITTED BY LAW, WE DISCLAIM ALL WARRANTIES INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.

We do not warrant that the Service will be uninterrupted, error-free, secure, or that Smart-generated content will meet any specific educational, pedagogical, or regulatory standard.

10. Limitation of liability

TO THE FULLEST EXTENT PERMITTED BY LAW, BRINL LLC AND ITS AFFILIATES WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR ANY LOSS OF PROFITS, REVENUE, DATA, OR GOODWILL, ARISING FROM OR RELATED TO YOUR USE OF THE SERVICE.

OUR TOTAL LIABILITY FOR ANY CLAIMS RELATING TO THE SERVICE WILL NOT EXCEED THE AMOUNT YOU PAID TO BRINL LLC FOR THE SERVICE IN THE 12 MONTHS IMMEDIATELY BEFORE THE CLAIM AROSE, OR ONE HUNDRED U.S. DOLLARS ($100), WHICHEVER IS GREATER.

11. Indemnification

You agree to defend, indemnify, and hold harmless Brinl LLC, its officers, employees, and agents from any third-party claims, damages, losses, or expenses (including reasonable attorney's fees) arising from your content, your violation of these Terms, or your misuse of the Service.

12. Governing law

These Terms are governed by the laws of the Commonwealth of Pennsylvania, United States, without regard to conflict-of-laws rules.

13. Binding arbitration and class-action waiver

PLEASE READ THIS SECTION CAREFULLY. IT AFFECTS YOUR LEGAL RIGHTS. By agreeing to these Terms, you and Brinl LLC each agree to resolve disputes through binding individual arbitration, not in court, and each waive the right to participate in a class action or jury trial.

Scope

Any dispute, claim, or controversy arising out of or relating to these Terms, the Service, or your use of the Service (a “Dispute”) will be resolved exclusively by final and binding individual arbitration, except as specified below.

Arbitration procedure

The arbitration will be administered by JAMS or the American Arbitration Association (AAA) under its then-current Consumer Arbitration Rules. The arbitration will be conducted in Montgomery County, Pennsylvania, or remotely by written or video submission where permitted under the applicable rules. The arbitrator has authority to award any remedy that would be available in court; the arbitrator's decision is final and binding, subject only to the limited judicial review permitted by the Federal Arbitration Act.

Class-action waiver

You and Brinl LLC each waive the right to bring or participate in any class action, collective action, or representative proceeding. The arbitrator may not consolidate claims of multiple parties and may not preside over any form of representative or class proceeding. If this waiver is found unenforceable, the entire arbitration provision in this section becomes void.

Exceptions

Either party may bring an individual small-claims action in a court of competent jurisdiction for any claim within that court's authority, in lieu of arbitration. Either party may also seek injunctive or equitable relief in court to protect intellectual-property rights or enforce confidentiality obligations.

Opt-out

You may opt out of this arbitration agreement by emailing legal@brinl.com within 30 daysof your first acceptance of these Terms, with the subject line “Arbitration Opt-Out” and including your account email. Opting out does not affect any other provision of these Terms. If you opt out, disputes will be resolved in the state or federal courts located in Montgomery County, Pennsylvania, and you consent to the personal jurisdiction of those courts.

14. Changes to these Terms

We may update these Terms from time to time. If we make material changes, we will notify you by email or an in-app notice at least 14 days before the changes take effect. Continued use of the Service after changes take effect constitutes acceptance of the revised Terms.

15. Contact

Brinl LLC
260 Shirley Ln, Pennsburg, PA 18071, United States
Building real impact in next-gen learning.

Legal, privacy, and account-security matters: legal@brinl.com
General inquiries: info@brinl.com