oki

Terms of Use

Last updated November 10, 2026

Using Oki

Oki plays calming sounds to help you relax and fall asleep. By using the app you agree to these terms, and to Apple’s standard license agreement for apps from the App Store. If you don’t agree, please don’t use it.

Oki Premium

Premium is a subscription, billed yearly or monthly to your Apple Account. It renews automatically at the same price unless you cancel at least 24 hours before the current period ends. A free trial becomes a paid subscription when it ends, unless you cancel at least 24 hours before. To cancel, open Settings on your iPhone, tap your name, then Subscriptions. Premium stays on until the end of the period you’ve paid for. Payments and refunds are handled by Apple, under Apple’s policies.

Not medical advice

Oki is for relaxation only. It is not a medical device and doesn’t diagnose, treat or cure any condition, including insomnia or other sleep disorders. If you have trouble sleeping or a health concern, talk to a doctor. Some sounds, such as binaural and isochronic tones, are not suitable for everyone: stop listening if you feel unwell.

Listen safely

Keep your volume at a comfortable level, especially with headphones, and don’t use Oki where you need to hear your surroundings, such as while driving.

Your content

The mixes you save belong to you and stay on your device. Oki’s sounds, artwork, text and design belong to Oki or its licensors. You may use them inside the app for your own personal listening, but you may not copy, record, resell or redistribute them.

Open-source software

Oki includes open-source software, used under its own licenses. See Licenses for the notices.

No warranty

Oki is provided “as is” and “as available”, without warranties of any kind. We don’t promise it will always work, be error-free or be available.

Limit of liability

To the fullest extent the law allows, Oki’s developer is not liable for any indirect, incidental or consequential damages arising from your use of the app. Nothing in these terms limits any rights you have under the law where you live that can’t be limited.

Changes

We may update these terms as Oki changes. The date below shows when they were last updated. Continuing to use Oki after an update means you accept the new terms.

Contact

Questions? Email support@okisleep.com.