Need a hand, found a bug, or have an idea? We'd love to hear from you.
📧 Email us at vascopanukorn@gmail.com
We usually reply within a couple of days.
Is my sleep data private?
Yes. Everything stays on your device — there are no accounts and no servers collecting your data. See our Privacy Policy.
Do I need a smartwatch or wearable?
No. Koala works with just your iPhone. You can track a night with your phone nearby or log your sleep manually.
Can Koala track my sleep stages and REM?
Koala provides gentle, approximate estimates of light, deep, and dream (REM) time based on your night. These are wellness estimates, not clinical measurements.
How is my sleep score calculated?
It's a simple, encouraging estimate based on your time asleep, wake-ups, and consistency — designed to guide you kindly, not to grade you.
Why does Koala use the microphone?
During a tracked session, the microphone saves local sleep audio for playback and helps estimate restlessness, snoring, and talking from sound patterns. This happens entirely on your device.
How do I delete my data?
All your data lives on your device. Deleting the app removes it completely.
Koala Sleep is a wellness and self-tracking tool, not a medical device. It does not diagnose, treat, cure, or prevent any condition.