Contact Us
We'd love to hear from you. Reach out with questions, feedback, or ideas.
General Inquiries
For questions about Lett, feature requests, or general feedback, email us at:
hello@lett.comBug Reports
Found something that isn't working correctly? Let us know so we can fix it:
support@lett.comPartnerships
Interested in collaborating or integrating Lett into your product? Reach out:
partnerships@lett.comWhat to Expect
Response Time
We aim to respond to all inquiries within 48 hours during business days. For urgent bug reports affecting core functionality, we prioritize faster turnaround times.
Feature Requests
We genuinely value community input. Every feature suggestion is reviewed by our team. While we cannot guarantee implementation of every request, popular ideas frequently make it into future updates.
Common Questions
Is Lett really free?
Yes. Lett is completely free to use with no subscriptions, no ads, and no hidden costs. All 84 sounds and every feature are available to everyone, from the very first visit.
Do I need to create an account?
No. Lett works without any sign-up, login, or registration process. Your sound preferences and mixer settings are stored locally on your device using browser storage, so your setup is always ready when you return.
Can I use Lett offline?
Yes. Lett is a Progressive Web App (PWA), which means it works without an internet connection once initially loaded. You can install it directly to your phone or computer home screen for instant access, just like a native app.
How can I support Lett?
Sharing Lett with friends, colleagues, or on social media helps us reach more people who could benefit from better focus and sleep. Writing about your experience, leaving positive feedback, and suggesting improvements are all meaningful contributions.
What devices and browsers does Lett support?
Lett works on all modern browsers including Chrome, Firefox, Safari, and Edge. It is fully responsive across desktop, tablet, and mobile devices. As a PWA, it can also be installed and used like a standalone application.
Does Lett collect any personal data?
No. We are committed to your privacy. Lett does not collect, store, or transmit any personal information. There are no analytics trackers, no cookies for advertising, and no third-party data sharing. Read our Privacy Policy for full details.