Timbre – An app that finds the best sounds for your sleep
Hey all, I'm currently a solo iOS developer who just released my first app, Timbre, onto the App Store (iPhone only for now). Here's a demo to show you how it works: https://www.youtube.com/watch?v=ALoPAFb31Bk. Timbre originally came about because I wanted to build a sleep sounds & sleep tracker app. I had used Headspace, Calm, Pillow, etc. and figured that instead of paying $70 / year I could just build my own app and pay $100 / year (not a great plan in retrospect). As I started building Timbre, I realized that one of the biggest issues I had with these other apps…
In plain words
Timbre is an iOS app that helps users find which sounds improve their sleep quality by tracking the relationship between audio and sleep stages. Using machine learning and Apple HealthKit data, it analyzes which sounds lead to better sleep outcomes. Built by a solo developer, Timbre combines sleep sound selection with sleep tracking in a single application designed for iPhone users seeking to optimize their sleep through personalized sound recommendations.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey all, I'm currently a solo iOS developer who just released my first app, Timbre, onto the App Store (iPhone only for now). Here's a demo to show you how it works: https://www.youtube.com/watch?v=ALoPAFb31Bk. Timbre originally came about because I wanted to build a sleep sounds & sleep tracker app. I had used Headspace, Calm, Pillow, etc. and figured that instead of paying $70 / year I could just build my own app and pay $100 / year (not a great plan in retrospect). As I started building Timbre, I realized that one of the biggest issues I had with these other apps is that I could never really see which sounds genuinely helped me sleep. With that in mind, I pivoted on my original idea and decided to really hone in on connecting sleep quality and sounds. Using a custom ML model, Apple's CoreML framework and HealthKit's sleep stage data, I made it so that Timbre could calculate a personal sleep quality score. Therefore, when you record a sleep session while listening to a sound, the app can rank the sounds you've listened to based on your sleep quality scores over time. Of course, the app also has a smart alarm, offline support, sleep analysis and more, but I'd love to get some feedback & suggestions from the demo video. Also feel free to ask me any questions and I'd be happy to answer them!
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