Terms of Use
These Terms of Use (“Terms”) govern your use of the Otvika app (“Otvika”, “we”, “us”). By using Otvika you agree to these Terms and to Apple’s Standard Licensed Application End User License Agreement (“Apple EULA”). If these Terms and the Apple EULA conflict, these Terms apply to the extent permitted.
1. The app
Otvika converts text you provide into synthetic speech using voice models that run on your device. Voices are computer-generated and do not belong to, and are not endorsed by, any real person.
2. Your content
You keep all rights to the text, documents and images you add. You are responsible for having the right to use that content, including copyrighted books and documents. Your content stays on your device; see our Privacy Policy.
3. Acceptable use
Otvika includes the Supertonic 3 voice model, licensed under the OpenRAIL-M license, which requires that its output not be used for harmful purposes. You agree not to use Otvika or audio it creates to:
- impersonate a real person, or present generated audio as a real person’s voice or words, without their consent;
- deceive, defraud or mislead others, including creating disinformation or fake evidence;
- harass, threaten, defame or discriminate against any person or group;
- exploit or harm minors in any way;
- violate any law or the rights of others, including privacy and intellectual-property rights;
- provide medical, legal or financial advice that people may rely on without clearly stating it was generated.
When sharing generated audio publicly, you should disclose that it is synthetic speech where people could reasonably be misled.
4. Otvika Pro and purchases
- Otvika is free to use. Otvika Pro is optional and unlocks saving and sharing audio files.
- Pro is available as an auto-renewing weekly subscription or a one-time lifetime purchase. Prices are shown in the app before you buy and may vary by country.
- Payment is charged to your Apple ID at confirmation of purchase.
- Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends.
- Manage or cancel subscriptions in your Apple ID settings (Settings → your name → Subscriptions).
- If a free trial is offered, any unused portion is forfeited when you purchase a subscription.
- Refunds are handled by Apple under its policies.
5. License and restrictions
We grant you a personal, non-transferable license to use Otvika on Apple devices you own or control, as described in the Apple EULA. You may not reverse engineer the app, extract its bundled models for separate use, or resell the app, except as permitted by law or by the open-source licenses listed in the app under Settings → Acknowledgments.
6. Third-party components
Otvika uses open-source software and models, including Kokoro-82M (Apache 2.0), Supertonic 3 (OpenRAIL-M), ONNX Runtime (MIT), sherpa-onnx (Apache 2.0), cppjieba dictionaries (MIT) and RevenueCat (MIT). Their licenses are available in the app.
7. Disclaimer
Otvika is provided “as is”. Synthetic speech and text recognition can contain errors, including mispronunciations and misread text. Do not rely on Otvika where accuracy is critical. To the extent permitted by law, we disclaim all warranties, express or implied.
8. Limitation of liability
To the maximum extent permitted by law, we are not liable for indirect, incidental or consequential damages, or for loss of data, arising from your use of Otvika. Our total liability is limited to the amount you paid for the app in the 12 months before the claim. Nothing in these Terms limits rights you have under consumer-protection laws that cannot be waived.
9. Changes
We may update these Terms. If changes are material, the app will ask you to review and accept them before continuing.
10. Contact
Email support@otvika.online.