Terms of Service

Last updated: May 19, 2026

By downloading or using Lull (the "App"), you agree to these terms. If you don't, please don't use the App.

Your license

When you purchase Lull, you receive a personal, non-exclusive, non-transferable license to use the App on devices you own or control, through the App Store or Google Play account you used to buy it. This is a one-time purchase — there is no subscription, no in-app billing for additional features, and no recurring charge.

What you can't do

• Modify, decompile, reverse-engineer, or extract the audio assets bundled in the App for redistribution.
• Resell, sublicense, rent, or otherwise commercially distribute the App.
• Use the App or its audio in a way that violates applicable laws.

The sounds

Audio in Lull is licensed for personal use within the App. You may play the sounds for yourself in any setting — at home, at work, with friends, while sleeping. You may not extract, redistribute, or use the audio files outside the App.

Updates

We may release updates that add features, fix bugs, replace sounds, or change behavior. Updates are delivered through the App Store and Google Play. We reserve the right to discontinue features that no longer meet our quality bar.

Purchases and refunds

Purchases are processed by Apple or Google. Refunds are handled by their respective stores, subject to their refund policies. We are not able to issue refunds directly.

Health and use

Lull is intended for relaxation, focus, and sleep — it is not a medical device and is not intended to diagnose, treat, cure, or prevent any condition. If you have concerns about your sleep or mental health, please talk to a qualified professional.

Do not use Lull while driving, operating heavy machinery, or in any situation that requires your full attention. Listen at a comfortable volume — prolonged exposure to high volume can damage hearing.

No warranty

The App is provided "as is" without warranties of any kind, express or implied, including merchantability, fitness for a particular purpose, or non-infringement. We don't promise the App will be uninterrupted, error-free, or compatible with every future OS version.

Liability

To the maximum extent permitted by law, we are not liable for any indirect, incidental, special, consequential, or punitive damages arising out of your use of the App. Our total liability is limited to the amount you paid for the App.

Changes to these terms

We may update these terms occasionally. When we do, we'll update the date above. Continued use of the App after changes constitutes acceptance of the new terms.

Contact

Questions? Reach out at lull@redcollar.io.