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Pillow’s listing describes sleep estimates, heart-rate analysis and Apple Health integration, including an automatic Apple Watch workflow and manual modes. Restful does a different job: sound mixing and timed naps. Using Restful without a wearable does not reproduce Pillow’s analysis.
Facts about Pillow were read from its US App Store listing on 25 September 2026. Apps change; the live listing is the authority.
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| Feature | Restful | Pillow |
|---|---|---|
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
| 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. |
Consider Pillow if Apple Watch integration, Health comparisons or its developer-described analysis features are what you want. Check device requirements and premium access for the specific workflow; this page does not validate sleep estimates.
Consider Restful for sounds and a nap timer, not as a wearable-free sleep detector. Its iOS 13.0 support and current purchase model may matter if those sound and timer features already meet your needs.
This page is published by Curastone CORP, the developer of Restful. Pillow is made by Neybox Digital Ltd. and is not affiliated with Restful. Product names are the trademarks of their respective owners. We have tried to describe Pillow accurately and to say plainly where it is the better choice; if something here is wrong, tell us and we will correct it.
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The US price was USD 2.99 on 6 October 2026. Released version 1.0.9 includes sounds and a nap timer with no subscription or ads. Check the current local price before buying.
Requires iOS 13.0 or later. The optional night sound curve, off by default, needs the phone charging near the bed; that requirement is not a condition for ordinary sound playback. The curve does not detect sleep.