Terms of Service

1. About these terms

These Terms of Service ("Terms") form a binding agreement between you ("you", "your") and TeachBoard ("TeachBoard", "we", "us", "our"), an Indian sole-proprietorship operating the website at teachboard.app and the related software, APIs and features (collectively, the "Service"). By accessing or using the Service you agree to these Terms and to our Privacy Policy and Refund & Cancellation Policy, which are incorporated here by reference.

If you do not agree, do not use the Service.

2. The service

TeachBoard is a browser-based online whiteboard and studio for making teaching and explainer videos. It includes: an infinite drawing canvas; screen, microphone and camera recording so you can present a lesson yourself; an AI that builds lesson pages (layout, visuals and speaker notes) from your description or uploaded material; AI narration that reads those notes aloud with burned-in captions and records the video in your browser; a Studio timeline for trimming, assembling and exporting MP4; share links for finished videos; and the board itself — freehand drawing, shapes, tables, charts, flow and Mermaid diagrams, math (KaTeX) typesetting, motion scenes, server-rendered math animations, media import (image / sprite / video / PDF), an asset library and icon, image and stock-video search.

The Service is offered in three tiers:

• Anonymous — the full local board, including recording yourself, Studio and MP4 export. No sign-in required, no AI, no cloud sync, no share links.
• Free (signed in) — adds a one-time grant of AI pages and AI videos, one cloud project and share links, after signing in with a Google account or an email address.
• Pro — a paid monthly subscription that adds a monthly allowance of AI pages and AI videos with rollover, multiple cloud projects, parallel chat sessions and the option to use your own Anthropic API key. See the pricing page for current limits.

What is metered. Only two things consume your allowance: an AI page (a page the AI builds for the first time — subsequent edits to it are free) and an AI video (one narrated render or one server-side math render). Drawing, importing, editing, recording yourself, using Studio, exporting and sharing are not metered on any tier.

Tier names, limits and prices may change from time to time. Material changes that reduce paid benefits during a billing cycle will not apply retroactively to that cycle.

Device requirements. The Service is designed for a desktop or laptop browser. It is not supported on phones or small tablets, and AI narration rendering requires a current Chromium-based browser.

3. Accounts & eligibility

You may use the Anonymous tier without creating an account. To use AI features, cloud sync, share links or Pro, you must sign in — either with a Google account or by verifying an email address with a one-time code (after which you may optionally set a password).

• You must be at least 18 years old, or the age of majority in your jurisdiction, to create an account or purchase a subscription. We do not knowingly collect data from children. See our Privacy Policy.
• You agree the information you provide (or that Google provides to us via OAuth) is accurate and that you have the right to provide it, and that the email address you verify is yours.
• You are responsible for activity on your account and for keeping your sign-in credentials — your Google account, your email inbox and any password you set — secure. Notify us at xeonaicontact@gmail.com if you suspect unauthorised use.
• One account per individual person. Sharing a paid account between multiple users is not permitted.

4. Acceptable use

You agree not to use the Service, and not to assist or permit any third party to use the Service, to:

• break any applicable law, regulation, or third-party right (including intellectual-property, privacy and data-protection laws);
• create, store, display, transmit or generate content that is illegal, defamatory, obscene, sexually explicit involving minors, hateful, harassing, or that incites violence;
• generate or distribute malware, phishing pages, or anything that compromises the security of the Service or other users;
• attempt to gain unauthorised access to any part of the Service, other users' accounts or the underlying infrastructure (including AWS, Amazon Polly, Anthropic, Dodo Payments, Freepik, Pexels or Google systems we integrate with);
• scrape, mirror, frame, or systematically download the Service, or interfere with it via automated means beyond ordinary browser use;
• resell, white-label, or commercially redistribute the Service or AI outputs without our written permission;
• use the AI features to generate content that violates the underlying provider's policies (notably Anthropic's Usage Policies, and Amazon Polly's terms for synthetic speech);
• record any person's voice or image without the consent required where you are, or use a synthetic voice to impersonate a real person or to present a video as if it were made by someone else;
• use a share link to distribute content that breaches this section — share links are public URLs and you are responsible for what you publish on one;
• reverse-engineer, decompile or attempt to extract source code from the Service, except to the extent this restriction is prohibited by applicable law;
• use the Service to train, evaluate or benchmark a competing AI product or whiteboard product.

We may suspend or terminate accounts that breach this section without prior notice where the breach is material or causes risk to others.

5. Subscriptions, billing & taxes

5.1 Pricing & currency

The TeachBoard Pro plan is offered at USD $10 per month, billed monthly in advance, unless a different price is shown to you at checkout. Prices are exclusive of applicable taxes unless stated otherwise.

5.2 Payment processor — Dodo Payments

All paid subscriptions are processed by Dodo Payments acting as the merchant of record. By subscribing, you also agree to Dodo Payments' terms and privacy policy. We never see or store your full card number, CVV or bank credentials — Dodo handles them under PCI-DSS compliance.

Dodo Payments may collect and remit applicable taxes (such as GST, VAT or sales tax) on our behalf, depending on your country of residence. The tax line shown at checkout is final.

5.3 Auto-renewal

Pro is a recurring subscription. Unless cancelled, it renews automatically at the end of each billing period for another period of the same length, at the then-current price. We will charge the payment method on file via Dodo Payments.

5.4 Cancellation & refunds

You may cancel your subscription at any time. Cancellation stops future renewals; you keep access to Pro features until the end of the billing period you have already paid for. Your first payment is fully refundable for 7 days if you ask — no reason needed. After that window, and for renewal payments, payments are non-refundable subject to the exceptions in our Refund & Cancellation Policy, which also sets out how to cancel.

5.5 Failed payments

If a renewal payment fails, we may retry the charge through Dodo Payments and downgrade your account to the Free tier until payment succeeds. Cloud projects above the Free tier's project limit will remain stored but read-only until you either resume Pro or remove the excess projects.

5.6 Price changes

We may change subscription prices and the AI page / AI video allowances. We will give you at least 14 days' notice by email (to the address attached to your account) before a price increase affects your renewal. If you don't want to renew at the new price, you can cancel before that renewal date.

6. AI features & outputs

TeachBoard's AI page building, chart and diagram generation, math renders and narration are powered by third-party providers — currently Anthropic (Claude) for anything the model writes or designs, Amazon Polly for synthetic speech, and our own server-side Manim + LaTeX renderer for math renders.

• Inputs. When you use an AI feature, the prompt you type, any attached files (images, PDFs, snippets) and the relevant context of your pages or selection are sent to Anthropic to generate a response. When you render a narrated video, the speaker notes are sent to Amazon Polly to be spoken. Don't put anything into AI features that you wouldn't be comfortable sharing with a third-party processor.
• Outputs. AI outputs are generated probabilistically. They may be wrong, incomplete, biased or non-deterministic. You are responsible for reviewing and verifying anything you publish or rely on. TeachBoard is not a substitute for professional advice (medical, legal, financial, educational accreditation or otherwise).
• Ownership. As between you and TeachBoard, you own the prompts you write and, to the extent allowed by law, the outputs the AI generates from your prompts on your canvas. We don't claim ownership of your AI-generated content, but we also don't warrant that those outputs are unique to you or unencumbered by third-party rights.
• Narration. AI voices are synthetic. They read your speaker notes as written and do not translate them. You are responsible for the words you have spoken, and for not using a synthetic voice to misrepresent who made a video.
• Allowances. AI usage consumes AI pages and AI videos. Current grants, rollover and caps are on the pricing page. The free-tier grant is one-time and does not refresh or roll over; Pro allowances refresh each cycle and roll over up to the cap shown there. A build that fails through our fault is not charged.
• Provider policies. Your use of AI features is also subject to Anthropic's Usage Policies and, for narration, to AWS's service terms. Violations there may result in feature suspension on our side.
• Your own key. If you are on Pro and supply your own Anthropic API key, those requests are billed to your Anthropic account under your agreement with Anthropic, and do not consume AI pages. You are responsible for that key and its usage; we store it encrypted and you can remove it at any time.

7. Your content & our platform

7.1 Your content

"Your Content" means any files, drawings, prompts, attachments, speaker notes, recordings and project data you create, record or upload via the Service. You retain all rights you already had in Your Content. We don't claim ownership of it.

You grant TeachBoard a worldwide, royalty-free, non-exclusive licence to host, store, process, transmit, display and create technical derivative works of Your Content solely to operate, secure, debug and improve the Service for you (e.g. to render a PDF on your page, to call Anthropic with your prompt, to have Amazon Polly speak your speaker notes, to convert an uploaded recording into a standard MP4, to store a math render in S3 so it can play back). This licence ends when you delete the relevant content, except for backups and logs we retain for a limited period for security and recovery.

You represent that you have the rights to upload Your Content and that doing so doesn't infringe any third-party right.

7.2 Recordings & share links

Recordings you make stay in your own browser's storage until you choose to download or share them. Clearing your browser's site data deletes them and we hold no copy.

When you copy a share link, you instruct us to host that video at a public URL and to serve a public watch page for it. Anyone with the link can watch it; there is no access control, by design. You are responsible for what you publish this way and for not sharing anything you don't have the rights to. We may remove a shared video that breaches section 4, and we will delete any shared video on your request — email us the link.

7.3 Our platform

The Service — software, design, code, brand, logos, documentation and all underlying technology — is owned by TeachBoard or its licensors and is protected by intellectual-property laws. Nothing in these Terms transfers that ownership to you. We grant you a personal, non-transferable, non-exclusive, revocable licence to use the Service in accordance with these Terms.

7.4 Feedback

If you send us feedback, bug reports or feature suggestions, you grant us a perpetual, irrevocable, royalty-free licence to use them without restriction.

8. Third-party services

The Service integrates with third-party providers, including:

• Google — sign-in (OAuth) and profile info, when you choose that sign-in route.
• Anthropic — page building, chart and diagram generation, and math-render script generation.
• Amazon Web Services (AWS) — hosting, storage (S3), CDN (CloudFront), math-render and video-conversion Lambdas, and Amazon Polly for AI narration.
• Dodo Payments — subscription billing.
• Freepik — icon and image search.
• Pexels — stock-video search.

Your use of those features is also governed by the respective provider's terms. We are not responsible for the acts or omissions of third-party providers beyond our reasonable control.

9. Availability & changes

We aim to keep TeachBoard available but we do not commit to a specific uptime, SLA or feature set unless we say so in writing. We may introduce, modify or remove features, change limits, or temporarily suspend the Service for maintenance, security, abuse, legal or technical reasons.

10. Suspension & termination

You may stop using the Service at any time. To delete your account and associated data, email xeonaicontact@gmail.com.

We may suspend or terminate your access to the Service (in whole or in part) if:

• you breach these Terms or any policy referenced in them;
• your account is used in a way that creates risk or legal exposure for TeachBoard, other users or our third-party providers;
• a renewal payment fails and is not cured within a reasonable period; or
• we are required to do so by law.

Where suspension or termination affects a paid subscription, our Refund Policy governs any refund eligibility. Sections that by their nature should survive termination (ownership, disclaimers, liability caps, indemnities, governing law) survive.

11. Warranty disclaimer

The Service is provided "as is" and "as available", without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, non-infringement, that the Service will render a video successfully in your browser, or that AI outputs — including generated pages, diagrams, math and narration — will be accurate, complete, current, lawful in your jurisdiction or suitable for any particular use. You use the Service at your own risk.

12. Limitation of liability

To the maximum extent permitted by law:

• TeachBoard will not be liable for any indirect, incidental, special, consequential, exemplary or punitive damages, including loss of profits, revenue, data, goodwill or business opportunity, even if advised of the possibility of such damages;
• TeachBoard's total aggregate liability arising out of or relating to these Terms or the Service in any 12-month period will not exceed the greater of (a) the total fees you actually paid to TeachBoard for the Service in the 12 months preceding the event giving rise to the claim, or (b) USD $50.

Some jurisdictions don't allow the exclusion of certain warranties or the limitation of certain damages. In those jurisdictions the exclusions and limitations apply only to the extent permitted.

13. Indemnification

You agree to defend, indemnify and hold harmless TeachBoard from and against any claims, damages, liabilities, costs and expenses (including reasonable legal fees) arising out of or related to: (a) Your Content; (b) your use of the Service in breach of these Terms; (c) your breach of any third-party right, including any intellectual-property or privacy right; or (d) any AI output you publish or rely on after we made it available to you.

14. Governing law & disputes

These Terms are governed by the laws of India, without regard to conflict-of-laws principles. Subject to the next paragraph, the courts of India will have exclusive jurisdiction over any dispute arising out of or in connection with these Terms or the Service.

We'd much rather solve problems by email than in a courtroom. Before starting any formal proceeding, please email xeonaicontact@gmail.com with a description of the dispute and what you'd like us to do; we will try in good faith to resolve it within 30 days.

15. Changes to these terms

We may update these Terms from time to time. The "Last updated" date at the top reflects the latest revision. If the changes are material, we will give reasonable advance notice — for example by email or via an in-app notice — before they take effect. Your continued use of the Service after the effective date constitutes acceptance of the updated Terms.

16. Contact

For any questions about these Terms — including legal notices and dispute notices — write to us at:

Email

xeonaicontact@gmail.com

Operator

TeachBoard (Indian sole-proprietorship)

Website

teachboard.app