Terms of Service
1. The service
MotherSubs is a browser extension and website (mothersubs.com) that helps you learn languages on YouTube with AI-prepared subtitles, pronunciation, translations and word explanations. It is operated by Olivier Radziminski, France (support@mothersubs.com). MotherSubs is currently in beta: features may change and the service may occasionally be unavailable.
2. Your account
You sign in with a Google account and are responsible for activity on your MotherSubs account. You must be at least 15 years old. You can delete your account at any time from your account page.
3. Acceptable use
- Use MotherSubs for your own personal language learning.
- Do not resell or redistribute the subtitles, translations or explanations produced for you.
- Do not try to abuse, overload, reverse engineer or bypass the limits of the service.
- Keep respecting YouTube's terms and the rights of video and caption owners. MotherSubs does not grant you any right over YouTube content.
We may suspend an account that breaks these rules.
4. AI-generated content
Translations, pronunciation and explanations are generated by AI from the captions you choose. They can contain mistakes and are provided for learning only, without any guarantee of accuracy.
5. Free credit and subscription
- Free credit: new accounts receive a small free AI credit to try MotherSubs.
- MotherSubs Basic: $8 per month, including a monthly AI usage credit that is valid for the current billing period. The subscription renews automatically every month until you cancel it.
- MotherSubs Pro: $14.99 per month, with a larger monthly AI usage credit, on the same terms as Basic. You can switch plans from "Manage subscription". Upgrading to Pro takes effect immediately: you are charged the prorated price difference for the rest of the current billing period and receive the matching share of the extra Pro credit. Moving back to Basic takes effect at your next renewal.
- Credit is consumed by AI processing (subtitle preparation and explanations). Subtitles already prepared for you stay available without new cost.
- Payments are processed securely by Stripe, which acts as the reseller (merchant of record) of the subscription. Prices are set in US dollars and may be shown in your local currency. Applicable taxes, such as VAT, depend on your country and are calculated and added at checkout.
6. Cancellation, refunds and right of withdrawal
You can cancel your subscription at any time from "Manage subscription" on your account page. Cancellation stops future renewals; you keep access until the end of the period already paid.
Purchases are sold through Link, Stripe's checkout service, which acts as the reseller (merchant of record). Link's terms of sale, shown at checkout and available at link.com/terms, govern refunds and, for consumers in the European Union and the United Kingdom, the 14-day right of withdrawal. Refund and withdrawal requests are made to Link's customer support, from your Link account or your payment receipt.
By subscribing, you ask that MotherSubs starts immediately. If you withdraw within 14 days after you started using it, the service already provided is deducted from your refund in proportion to the share of the paid period's credit you have used, applied to the price you paid. For example, if you used 30% of your monthly credit, 30% of the price paid is kept and 70% is refunded.
When a payment is refunded, the AI credit it granted is removed from your account. For any question about MotherSubs itself, contact support@mothersubs.com.
7. Liability
MotherSubs is provided "as is". To the extent permitted by law, we are not liable for indirect damages, for interruptions of the service, or for errors in AI-generated content. Nothing in these terms limits your rights as a consumer.
8. Changes and termination
We may update these terms; the effective date above will change and significant changes will be announced on the website. You can stop using MotherSubs and delete your account at any time.
9. Governing law
These terms are governed by French law. If a dispute arises, please contact us first; consumers may also use the European online dispute resolution platform or the courts that their local law designates.
10. Privacy
How we handle your data is explained in our Privacy Policy.
Legal notice
Publisher: Olivier Radziminski, entrepreneur individuel (EI), 66 rue de la Liberté, 11000 Carcassonne, France. SIRET: 883 467 672 00019. Contact: support@mothersubs.com.
Publication director: Olivier Radziminski.
Website hosting: Vercel Inc., 440 N Barranca Ave #4133, Covina, CA 91723, United States (vercel.com).