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SleepScore vs Plees Tracker: catalog facts
SleepScorePlees Tracker
Freemium

Free to download, with paid features.

Free

Free and open source under the MIT license.

Android, iOS Android
  • Tracks sleep without a watch or band
  • Sleep stage breakdown with a nightly score
  • No battery drain while you sleep
  • Stores past sleeps and shows the daily average
  • Phone sonar estimates are less direct than wearable sensors
  • Some features sit behind a paid tier
  • Manual start and stop only, no sensor-based sleep analysis
  • Android only
Downloadable app Downloadable app
Closed source Open source
License not stated License: MIT
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.