TensorTonic ("we", "our", "the Platform") is an interactive learning platform where users build machine learning algorithms from scratch through hands-on coding challenges, explore foundational ML mathematics, and engage with research-level concepts through guided problem-solving.

These Terms & Conditions govern your use of the Platform, including all content, coding environments, features, and services provided.

You must be at least 13 years old to use TensorTonic. If local law requires a higher minimum age to consent to an online service or the processing of personal data, you may use TensorTonic only with the authorization of a parent or guardian where such authorization is permitted by law.

You are responsible for maintaining the confidentiality of any sign-in credentials and all activity under your account.

You agree not to:

• Attempt to hack, reverse-engineer, or disrupt the platform or coding infrastructure
• Upload malicious, harmful, or illegal code
• Use TensorTonic to train or deploy harmful AI systems
• Share other users' content or paid materials without permission

TensorTonic may execute code via third-party infrastructure such as sandboxes or cloud environments.

Your code runs in an isolated environment, but:

• We do not guarantee complete security for sensitive data
• You should not upload personal, confidential, or production credentials
• Code execution is best effort: processing time, runtime failures, or resets may occur
• Any misuse may lead to suspension

TensorTonic offers a free tier and paid Pro and Plus subscriptions. Current features and advertised prices are shown on the Pricing page. The final price, billing interval, currency, discounts, and applicable taxes are shown before you confirm a purchase.

Payment provider and seller of record: TensorTonic uses Dodo Payments for checkout, payments, and subscription administration. For transactions processed under Dodo Payments' merchant-of-record service, Dodo Payments is the authorized reseller and legal seller and handles payment processing, invoicing, applicable indirect taxes, refunds, disputes, and chargebacks. The seller or merchant of record for your transaction is identified at checkout or on your receipt. Any buyer terms and privacy notices presented during checkout also apply.

Recurring billing: Paid subscriptions are billed monthly or yearly and renew automatically until canceled. By subscribing, you authorize the seller or payment provider identified at checkout to charge your selected payment method for each renewal, including applicable taxes. Unless an offer at checkout expressly states otherwise, paid subscriptions do not include a free trial.

Plan changes: Upgrades generally take effect immediately and may include a prorated charge or credit. Downgrades generally take effect on the next billing date. The exact immediate charge, credits, taxes, new recurring price, and effective date are displayed before you confirm a plan change. A failed payment may prevent a plan change.

Cancellation: You can manage or cancel a subscription through the billing portal available from your account. If cancellation is scheduled for the next billing date, paid access normally continues until the end of the current paid period. If you select an immediate cancellation option, or if access is suspended or terminated for nonpayment or a Terms violation, paid access may end earlier.

Failed payments: If a renewal or other charge fails, we or the payment provider may retry the charge, prevent a requested plan change, suspend paid access, or return the account to the free tier until payment is resolved.

Refunds: Subscription charges are generally non-refundable once processed, except where required by applicable law or expressly approved by the seller or merchant of record identified on your receipt. This does not limit any mandatory consumer rights. Contact support@tensortonic.com with your order information to request billing assistance.

Price changes: We may change subscription prices or features. We will provide any notice or obtain any consent required by applicable law before a new price applies to a renewal. You may cancel before the new price takes effect.

Owned by TensorTonic: All platform content is the exclusive intellectual property of TensorTonic, including but not limited to:

• All ML Math educational content, tutorials, explanations, and written materials
• Problem statements, coding challenges, and their solutions
• Interactive visualizations, diagrams, and graphical representations
• Research explanations and technical blog content
• Platform UI/UX design, graphics, logos, and branding
• The selection, arrangement, and presentation of educational materials

Owned by Users: Any original code, solutions, theory answers, or content you create remains your property.

By submitting content or code on TensorTonic, you grant us a non-exclusive, worldwide license to store, process, and display it within the platform.

All educational content on TensorTonic is protected by copyright and intellectual property laws. You expressly agree NOT to:

• Copy, reproduce, or duplicate any content from TensorTonic, in whole or in part, for any purpose
• Scrape, crawl, or use automated tools to extract content, data, or materials from the platform
• Create derivative works based on our educational content, visualizations, or explanations
• Republish or redistribute content on any other website, platform, application, or medium
• Use content for commercial purposes including but not limited to creating competing educational products or services
• Remove, alter, or obscure any copyright notices, trademarks, or proprietary attributions
• Train AI/ML models on our content without explicit written authorization
• Mirror or frame any portion of the platform on external websites

Violation of these terms may result in immediate account termination, legal action, and claims for damages including statutory damages under applicable copyright law.

TensorTonic respects intellectual property rights and expects users to do the same. If you believe your copyrighted work has been infringed upon, or if we discover that our content has been copied without authorization, we will take appropriate action.

We actively monitor for unauthorized use of our content and will pursue legal remedies against infringers, including but not limited to injunctive relief, actual damages, and statutory damages.

TensorTonic grants you a limited, non-exclusive, non-transferable, revocable license to access and use the platform solely for your personal, non-commercial educational purposes. This license does not include:

• Any right to resell, sublicense, or transfer access to others
• Permission to use content for commercial educational services
• Authorization to create courses, tutorials, or educational materials based on our content
• Rights to use our content in any publication, presentation, or public display without written consent

TensorTonic is intended for personal learning purposes. Users agree not to use the platform for academic dishonesty, plagiarism, or cheating in exams, coursework, or hiring assessments.

"Fair use" as defined by copyright law does not extend to wholesale copying, systematic reproduction, or commercial exploitation of our educational content.

We reserve the right to suspend or terminate user accounts immediately and without prior notice if:

• These Terms are violated, including any content protection provisions
• Malicious code is detected or the platform's integrity is at risk
• We suspect unauthorized copying, scraping, or redistribution of content
• The account is used for competitive intelligence or commercial exploitation

Termination does not limit our right to pursue other legal remedies.

You agree to indemnify, defend, and hold harmless TensorTonic, its creator, and affiliates from any claims, damages, losses, or expenses (including attorney fees) arising from:

• Your violation of these Terms
• Your infringement of any intellectual property or other rights
• Any content you submit or actions you take on the platform

We collect the following types of data:

We use data to:

• Allow users to sign in, solve problems, and save progress
• Track submissions, generate leaderboards, and provide personalized recommendations
• Improve platform performance, detect bugs, and prevent abuse
• Monitor for unauthorized access patterns, scraping, or content theft
• Enforce our Terms of Service and protect our intellectual property
• Provide paid access, administer subscriptions, send billing notices, and support refunds, disputes, tax, accounting, and fraud-prevention obligations

We do not sell or rent your personal information to third parties.

Dodo Payments directly collects and processes payment method and billing details for paid purchases. TensorTonic does not directly receive or store full card numbers or full bank-account credentials in its application database.

To create and administer a purchase, we may provide Dodo Payments with your email address, TensorTonic user identifier, selected product, and an existing Dodo customer identifier. We receive and retain the billing and transaction records described above so that we can provide paid access, synchronize subscription status, assist with billing issues, and meet legal and financial obligations.

For purchases processed under its merchant-of-record service, Dodo Payments processes buyer data as an independent controller under its Privacy Policy. The seller or merchant of record for a transaction is identified at checkout or on your receipt.

We may also share the minimum personal information reasonably necessary with vendors that provide hosting, authentication, email, analytics, customer support, security, and code-execution infrastructure. We may disclose information where required by law or when reasonably necessary to prevent fraud, protect rights and safety, enforce our agreements, or respond to legal process. We do not sell or rent your personal information.

Depending on your region, you may:

• Request a copy of the data we hold about you
• Request deletion of your account and personal data, subject to legal and financial retention obligations described above
• Update or correct your information
• Request data portability, restriction, or objection where applicable
• Contact us for any privacy-related concerns

To make a request, email us at support@tensortonic.com

We take data protection seriously:

• All data is transmitted over HTTPS (SSL encryption)
• Passwords are hashed using industry standards (never stored in plaintext)
• Code runs in isolated environments to protect system integrity

However, no system is 100% secure; users should avoid uploading sensitive or personal data in code.

To protect our intellectual property and educational content, we may:

• Monitor access patterns and usage behavior for signs of automated scraping or bulk downloading
• Log IP addresses and user agents that exhibit suspicious activity
• Use technical measures to detect and prevent unauthorized content extraction
• Retain logs of access to educational content for copyright enforcement purposes

This monitoring is conducted solely to protect TensorTonic's copyrighted content and does not involve profiling for marketing purposes.

TensorTonic is not intended for children under 13 or any higher minimum age required by applicable local law unless valid authorization from a parent or guardian has been provided where permitted by law.

We do not knowingly collect personal data from children below the applicable minimum age without any authorization required by law. If you believe a child has provided personal data in violation of this policy, contact us so we can investigate and take appropriate action.

This Privacy Policy may be updated from time to time. If significant changes are made, we will notify users via the platform or email.

Where required by law, we will provide notice or request consent before a material change takes effect.