Terms of Service

1. Acceptance of Terms

By installing, accessing, or using the SubLingo mobile app, the SubLingo browser extension, our website, or any related services (together, the "Service"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not use the Service.

These Terms apply to every part of SubLingo. Where a section applies only to the mobile app or only to the browser extension, it says so.

2. Description of Service

SubLingo helps you build vocabulary in a language you are learning. It is available in a free tier and a paid Premium tier.

Mobile app. The SubLingo app for iOS and Android is a standalone vocabulary learning app. It stores the words you save, schedules them for review using a spaced-repetition algorithm, and provides practice exercises, audio pronunciation, progress statistics, and optional review reminders. The app works on its own and does not require the browser extension.

Browser extension. The SubLingo browser extension provides real-time subtitle translation and one-tap word saving while you watch videos in your browser on sites that use HTML5 video. The extension is a separate product, distributed through browser extension stores, and is not part of the mobile app.

If you use both and enable cloud sync, the vocabulary you save in one can appear in the other.

3. Accounts

Some features require you to create an account. You are responsible for maintaining the confidentiality of your account credentials and for all activity under your account. You agree to provide accurate information and to notify us immediately of any unauthorized use.

4. Free and Premium Tiers

Free Tier. The free tier provides access to basic features with certain limitations (e.g., limited translations per day). We reserve the right to modify free tier limits at any time.

Premium Tier. Premium subscriptions unlock additional features including unlimited translations, cloud sync, and advanced vocabulary tools. Premium is available as a monthly subscription or a one-time lifetime purchase.

5. Payments & Billing

Premium can be bought inside the mobile app or on our website. The billing terms depend on where you bought it. All prices are in USD unless otherwise stated.

Purchases made inside the mobile app. Premium bought in the SubLingo app is sold and billed by Apple through the App Store or by Google through Google Play. Payment is charged to your Apple Account or Google Account at confirmation of purchase.

• Monthly subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within the 24 hours before the period ends.
• Managing your subscription. You can view, change, or cancel your subscription in your device's subscription settings (on iOS: Settings › your name › Subscriptions; on Android: Play Store › Payments & subscriptions). Deleting the app does not cancel a subscription.
• Refunds for purchases made through the App Store or Google Play are handled by Apple or Google under their own policies. We cannot issue them directly.

Purchases made on our website. Premium bought on sublingo.pro is processed through LemonSqueezy. By subscribing, you agree to their terms of service.

• Monthly subscriptions renew automatically until cancelled. You may cancel at any time; your access continues until the end of the current billing period.
• Refunds. All sales are final. No refunds will be issued for Premium subscriptions purchased on our website.

Lifetime purchases, wherever bought, provide permanent access to Premium features as they exist at the time of purchase and any future updates.

6. Acceptable Use

You agree not to:

• Use the Service for any unlawful purpose or in violation of any applicable laws
• Reverse engineer, decompile, or disassemble the app or the extension
• Attempt to gain unauthorized access to our systems or other users' accounts
• Use automated tools to abuse the translation service or exceed reasonable usage limits
• Redistribute, resell, or sublicense the Service without our written consent
• Interfere with or disrupt the integrity or performance of the Service

7. Intellectual Property

The Service, including its design, code, features, and branding, is owned by SubLingo and protected by intellectual property laws. Your use of the Service does not grant you ownership of any intellectual property rights in the Service or its content.

Vocabulary data you create belongs to you. You retain ownership of any content you produce using the Service (e.g., exported Anki decks).

8. Third-Party Content & Platforms

This section applies to the browser extension. The extension runs alongside video sites you visit in your browser. We are not affiliated with those sites, and your use of them is governed by their respective terms of service. We are not responsible for the availability or content of third-party services.

Subtitle content the extension displays is sourced from those sites and their content providers. SubLingo does not claim ownership of this content.

The mobile app does not play or stream video and does not connect to any video service.

9. Disclaimer of Warranties

The Service is provided "as is" and "as available" without warranties of any kind, whether express or implied, including but not limited to implied warranties of merchantability, fitness for a particular purpose, and non-infringement.

We do not guarantee that translations will be accurate, complete, or error-free. Machine translations are provided for learning purposes and should not be relied upon for professional or critical applications.

10. Limitation of Liability

To the maximum extent permitted by law, SubLingo and its operators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits or data, arising out of or in connection with your use of the Service, regardless of the theory of liability.

Our total liability for any claim arising from the Service shall not exceed the amount you paid for the Service in the 12 months preceding the claim, or $100 USD, whichever is greater.

11. Termination

We may suspend or terminate your access to the Service at any time for violation of these Terms or for any other reason at our sole discretion. You may stop using the Service and uninstall the app or the extension at any time.

Upon termination, your right to use the Service ceases immediately. Provisions that by their nature should survive termination (including intellectual property, disclaimers, and limitation of liability) will survive.

12. Additional Terms for the iOS App

This section applies only if you obtained the SubLingo app from the Apple App Store, and it prevails over any conflicting term elsewhere in these Terms.

• These Terms are between you and SubLingo only, not with Apple. SubLingo, not Apple, is solely responsible for the app and its content.
• Licence. We grant you a non-transferable licence to use the app on any Apple-branded device that you own or control, as permitted by the Usage Rules in the Apple Media Services Terms and Conditions.
• Maintenance and support for the app is our responsibility. Apple has no obligation to provide any maintenance or support services for the app.
• Warranty. If the app fails to conform to any applicable warranty, you may notify Apple, and Apple will refund the purchase price of the app to you. To the maximum extent permitted by law, Apple has no other warranty obligation with respect to the app.
• Product claims. SubLingo, not Apple, is responsible for addressing any claims relating to the app, including product liability claims, any claim that the app fails to conform to a legal or regulatory requirement, and claims arising under consumer protection or similar legislation.
• Intellectual property claims. If a third party claims the app infringes their intellectual property rights, SubLingo, not Apple, is responsible for the investigation, defence, settlement, and discharge of that claim.
• Legal compliance. You represent that you are not located in a country subject to a U.S. Government embargo or designated as a "terrorist supporting" country, and that you are not listed on any U.S. Government list of prohibited or restricted parties.
• Contact. Questions, complaints, or claims about the app should be directed to support@sublingo.pro.
• Third-party beneficiary. Apple and its subsidiaries are third-party beneficiaries of these Terms and, upon your acceptance, have the right to enforce them against you.

13. Changes to These Terms

We may update these Terms from time to time. We will notify you of material changes by posting the updated Terms on this page and updating the "Last updated" date. Continued use of the Service after changes constitutes acceptance of the updated Terms.

14. Governing Law

These Terms shall be governed by and construed in accordance with applicable laws, without regard to conflict of law principles. Any disputes arising from these Terms or the Service shall be resolved through good-faith negotiation or, if necessary, binding arbitration.

15. Contact Us

If you have any questions about these Terms, please contact us at support@sublingo.pro.