| Main task | Sound mixing, playback timers and a separate nap timer. The optional room-sound curve is not a sleep tracker. | The developer describes sleep-stage estimates, heart-rate analysis, smart wake, recording and Health comparisons. Phone/manual and automatic Watch workflows are described. |
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| Purchase model | US price was USD 2.99 on 6 October 2026. Released version 1.0.9 has no subscription, in-app purchase or ads. | Free to download with in-app purchases and subscription options. Check the current listing and in-app offer for paid-feature access and terms. |
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| Future access | Current release facts are not a promise about future prices or features. | Free features and paid offers differ. We do not infer future feature access or quote a subscription price. |
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| Sound controls | ten mixer channels with independent volume controls, four nature tracks and four synthesized night-city ambiences. Audio timer: 10, 15, 20 or 30 minutes. | The listing includes sleep aids and audio content. Check the current in-app offer for the content and nap presets you need. |
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| System and version checked | Released version 1.0.9; iPhone and iPad, iOS 13.0 or later. | US listing version 6.6; iOS 17.0 or later. |
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| What the room-sound chart means | Optional and off by default. One relative sound value per minute, compared within the same night. It does not detect sleep or measure sleep stages, snoring, heart rate or breathing. | The listed analysis features are the developer’s descriptions. This comparison does not validate their accuracy or medical usefulness. |
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| Privacy boundary | With the optional sound curve off, which is the default, the microphone is not used. Audio is processed on the phone and not uploaded; since version 1.0.7, recording pieces are deleted after processing and at session end. Older backups can retain earlier copies. Diagnostics and app-session records go to Sentry. | Read the current App Privacy label and privacy policy. Sharing a feature name does not establish equivalent data handling. |
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| Account and local data | No account or sign-in. Journals are stored on the device; the app works offline. | Check current sign-up, account, backup and data-export options in the app. |
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| Watch and Health | No Apple Watch or heart-rate integration. The room-sound chart only represents relative microphone sound levels. | Apple Watch and Apple Health features are listed. We do not infer an algorithm’s accuracy or how individual sensor inputs determine a stage. |
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