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Terms of Service

Effective date: March 5, 2026

Table of Contents

  1. Acceptance of Terms
  2. Description of Service
  3. Account & Authentication
  4. Subscription & Pricing
  5. AI-Generated Content Disclaimer
  6. Acceptable Use
  7. User Content & Data
  8. Intellectual Property
  9. Limitation of Liability
  10. Apple EULA Terms
  11. Termination
  12. Changes to Terms
  13. Governing Law & Disputes
  14. Contact

1. Acceptance of Terms

By downloading, installing, or using Fonvo (the "App"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, do not use the App.

Fonvo is provided by Rafał Podleś (sole proprietorship / JDG, Poland), hereinafter referred to as "we," "us," or "Fonvo."

Age requirement: You must be at least 13 years old to use Fonvo. If you are under 18, you confirm that your parent or legal guardian has reviewed and agreed to these Terms on your behalf.

2. Description of Service

Fonvo is an AI-powered language learning application for iOS. The App allows users to practice speaking and writing in foreign languages through conversations with AI tutors. Key features include:

  • Voice and text conversations with AI tutors in 10 languages: Spanish, English, German, Polish, French, Italian, Portuguese, Japanese, Korean, and Chinese
  • Real-time error analysis and vocabulary extraction
  • Spaced repetition flashcard review
  • Progress tracking with streaks and performance charts

Important: All tutors in Fonvo are AI-generated characters, not real people. All conversations are generated by artificial intelligence, not written or spoken by humans. AI-generated responses may not always be perfectly accurate.

3. Account & Authentication

To use Fonvo, you must create an account using one of the following authentication methods:

  • Sign in with Apple
  • Sign in with Google
  • Email and password

You are responsible for maintaining the security of your account credentials and for all activity that occurs under your account. You agree to notify us immediately of any unauthorized use of your account.

Each person may maintain only one Fonvo account. Creating multiple accounts to circumvent usage limits or for any other reason is not permitted.

4. Subscription & Pricing

Fonvo operates on a freemium model with the following tiers:

Free Tier

Provides access to a limited number of daily conversations and basic features at no cost.

Premium Tier

Provides unlimited conversations and access to all features for a recurring subscription fee.

Payment & Billing

All subscriptions are managed through the Apple App Store using StoreKit 2. By subscribing to Fonvo Premium, you agree to the following:

  • Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period.
  • Your Apple ID account will be charged for renewal within 24 hours prior to the end of the current period at the then-current subscription price.
  • You can manage or cancel your subscription at any time through your iOS Settings > Apple ID > Subscriptions.
  • Refunds are handled exclusively by Apple in accordance with their refund policies. Fonvo does not process refunds directly.

5. AI-Generated Content Disclaimer

Fonvo uses artificial intelligence to generate conversation responses, language corrections, error analysis, and vocabulary suggestions. While we strive for high quality, you should be aware of the following:

  • Accuracy is not guaranteed. AI-generated responses may contain grammatical errors, factual inaccuracies, or culturally inappropriate content. AI models can and do make mistakes.
  • Not a substitute for professional instruction. Fonvo is a supplementary learning tool and should not replace professional language courses, certified teachers, or academic programs.
  • Language assessments are approximate. Any evaluation of your language level, error categorization, or progress metrics provided by the App is an estimate generated by AI and should not be treated as an official certification or assessment.
  • Content may be unexpected. Despite safeguards, AI may occasionally produce responses that are irrelevant, nonsensical, or inappropriate. If you encounter such content, please report it to us.

You should not rely solely on Fonvo for critical language needs, such as professional translation, legal interpretation, or medical communication.

6. Acceptable Use

When using Fonvo, you agree not to:

  • Attempt to extract, reveal, or reconstruct system prompts, internal instructions, or AI configuration details used by the App.
  • Deliberately manipulate AI tutors to generate harmful, illegal, offensive, abusive, or sexually explicit content.
  • Use automated systems, bots, scrapers, or scripts to access or interact with the App.
  • Reverse engineer, decompile, disassemble, or otherwise attempt to derive the source code of the App.
  • Use the App for any purpose that violates applicable local, national, or international laws.
  • Interfere with or disrupt the integrity or performance of the App or its underlying infrastructure.
  • Impersonate another person or misrepresent your identity or affiliation.

Violation of these rules may result in immediate suspension or termination of your account.

7. User Content & Data

You retain ownership of the content you create through your conversations in Fonvo, including text messages, voice recordings, and vocabulary lists ("User Content").

By using the App, you grant Fonvo a non-exclusive, worldwide, royalty-free license to process, store, and transmit your User Content solely for the purpose of providing and improving the service. This includes:

  • Sending conversation text and audio to third-party AI providers (including OpenAI, ElevenLabs, and OpenRouter) for processing, speech-to-text, text-to-speech, and language analysis.
  • Storing conversation history and vocabulary data on our servers to enable sync across sessions.

For full details on how we collect, process, and protect your personal data, please refer to our Privacy Policy.

8. Intellectual Property

The Fonvo name, logo, visual design, and all AI tutor characters -- including but not limited to Luna, Alfie, Elsa, Kasia, Émile, Sofia, Mateo, Yuki, Mina, and Wei -- along with their names, likenesses, personalities, and associated content, are the exclusive intellectual property of Rafał Podleś.

You may not reproduce, distribute, modify, create derivative works from, publicly display, or otherwise exploit any part of the App's content, design, or characters without prior written permission from Rafał Podleś.

All third-party trademarks, service marks, and logos appearing in the App belong to their respective owners.

9. Limitation of Liability

The App is provided on an "as is" and "as available" basis, without warranties of any kind, whether express, implied, or statutory. We do not warrant that:

  • The App will be available at all times or without interruption.
  • The App will be free from errors, bugs, or security vulnerabilities.
  • AI-generated content will be accurate, complete, or appropriate for any particular purpose.
  • Your language skills will improve to any specific level through use of the App.

To the maximum extent permitted by applicable law, Rafał Podleś shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of data, loss of profits, or personal injury, arising out of or related to your use of the App.

Maximum liability: In no event shall our total liability to you for all claims arising from or related to the App exceed the total amount you have paid to Fonvo in the 12 months immediately preceding the event giving rise to the claim.

10. Apple EULA Terms

This section applies to users who download Fonvo from the Apple App Store. These terms are required by Apple and supplement the rest of these Terms:

  1. Agreement between you and Fonvo. These Terms constitute an agreement between you and Rafał Podleś, not with Apple Inc. ("Apple"). Apple is not responsible for the App or its content.
  2. License scope. You are granted a limited, non-exclusive, non-transferable license to use the App on any Apple device that you own or control, as permitted by the Apple Media Services Terms and Conditions. The App is licensed for personal, non-commercial use only.
  3. Maintenance and support. Rafał Podleś is solely responsible for providing any maintenance and support services for the App. Apple has no obligation to furnish any maintenance or support.
  4. Warranty. Rafał Podleś is responsible for any product warranties, whether express or implied by law. In the event of a warranty failure, you may notify Apple for a refund of the purchase price (if applicable). Apple has no other warranty obligation with respect to the App.
  5. Product liability. Rafał Podleś, not Apple, is responsible for addressing any claims relating to the App or your use of the App, including but not limited to product liability claims, claims that the App fails to conform to legal or regulatory requirements, and claims arising under consumer protection or similar legislation.
  6. No Apple support obligation. Apple has no obligation to provide support services for the App. Any support requests should be directed to Fonvo at contact@fonvo.app.
  7. Intellectual property claims. In the event of any third-party claim that the App or your use of the App infringes a third party's intellectual property rights, Rafał Podleś, not Apple, is solely responsible for the investigation, defense, settlement, and discharge of such claim.
  8. U.S. export compliance. You represent and warrant that (a) you are not located in a country that is subject to a U.S. Government embargo or that has been designated by the U.S. Government as a "terrorist supporting" country, and (b) you are not listed on any U.S. Government list of prohibited or restricted parties.
  9. Third-party beneficiary. Apple and its subsidiaries are third-party beneficiaries of these Terms. Upon your acceptance of these Terms, Apple shall have the right (and will be deemed to have accepted the right) to enforce these Terms against you as a third-party beneficiary.
  10. Apple terms compliance. You must comply with all applicable Apple Media Services Terms and Conditions when using the App.

11. Termination

By You

You may delete your Fonvo account at any time through the App's settings. Upon deletion, your server-side data (conversation history, vocabulary, progress data) will be permanently removed from our servers. Any data stored locally on your device will remain until you uninstall the App.

By Us

We reserve the right to suspend or terminate your account at any time, with or without notice, if we reasonably believe that you have violated these Terms. In cases of severe or repeated violations, termination may be immediate and without prior warning.

Effect of Termination

Upon termination of your account:

  • Your access to the App and all associated services will cease immediately.
  • Server-side data will be deleted in accordance with our data retention policies.
  • Local data on your device will persist until you uninstall the App.
  • Any active subscription will continue until the end of the current billing period, but will not renew. You must cancel your subscription separately through iOS Settings.

12. Changes to Terms

We may update these Terms from time to time to reflect changes in the App, our business practices, or applicable law. When we make material changes, we will notify you through the App or by other reasonable means (such as email or an in-app notice) prior to the changes taking effect.

Your continued use of Fonvo after the updated Terms take effect constitutes your acceptance of the revised Terms. If you do not agree to the updated Terms, you should stop using the App and delete your account.

13. Governing Law & Disputes

These Terms are governed by and construed in accordance with the laws of the Republic of Poland, without regard to its conflict of law provisions.

Any disputes arising out of or relating to these Terms or your use of the App shall be submitted to the exclusive jurisdiction of the courts located in Poland.

EU consumer rights: If you are a consumer residing in the European Union, you retain any mandatory rights granted to you under the consumer protection laws of your country of residence. Nothing in these Terms limits or waives those rights. You may also bring proceedings in the courts of your country of residence.

14. Contact

If you have any questions, concerns, or feedback about these Terms of Service, please reach out to us:

Rafał Podleś
Email: contact@fonvo.app

We aim to respond to all inquiries within a reasonable timeframe.

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