# Sleep Diary – Relax Sound — Smart Alarm & Sleep Sounds > Intelligent sleep tracker with smart alarm and relaxing sounds. (iPhone/iPad app by Ngo Van Bang.) - Source: https://appshunter.io/ios/app/sleep-diary-relax-sound/id6760244190 (this page in markdown: same URL + `.md`) - Developer: [Ngo Van Bang](https://appshunter.io/developer/1867369562) - Category: Health & Fitness, Lifestyle - Price: Free with in-app purchases - Rating: 4.33/5 from 3 App Store ratings - Age rating: 4+ - Requires: iOS 16.0 · 111 MB - Languages: Arabic, English, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Malay and 7 more - Released: 2026-03-20 - Data updated: 2026-06-27 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/sleep-diary-relax-sound/id6760244190/reviews.md ## What is Sleep Diary? Sleep Diary – Relax Sound: Your Smart Sleep Companion Sleep Diary – Relax Sound is your intelligent companion for understanding and improving nightly rest. The app tracks and analyzes your sleep patterns, and provides clear insights to help you build healthier sleep habits. Whether you want to detect & track sleep quality, or wake up feeling more refreshed, Sleep Diary – Relax Sound offers advanced overnight monitoring using sound and sleep analysis technology. Simply place your phone near your bed and let the app handle the rest. Key Features: Accurate Sleep Tracking Monitor sleep duration, stages, and overall quality with detailed nightly analysis. Identify patterns like light sleep, deep sleep, and interruptions to understand your rest. Sleep Reports & Insights Get daily sleep summaries. Discover how lifestyle factors impact your sleep and track improvements over time. Smart Alarm Wake up at the optimal moment using a smart alarm that detects your lightest sleep stage within a chosen time window, reducing grogginess. Relax Sound Relax and unwind with calming sounds designed to white noises, improve sleep, reduce stress, and create a peaceful atmosphere anytime, day or night. Background Monitoring & Battery Optimization Sleep Diary continues tracking even when your screen is off, ensuring accurate results with minimal battery usage. Why Choose Sleep Diary – Relax Sound? With an intuitive interface and reliable tracking, the app helps you understand your nights and wake up better every day. From sleep cycle analysis to relaxing sounds, every feature is designed to improve your rest. Download Sleep Diary – Relax Sound today and take the first step toward healthier sleep, clearer insights, and more refreshed mornings. We’d very much appreciate if you have any recommendations or suggestions for us to improve this sleep tracker app. Your kind words encourage us a lot, thank you Privacy policy : https://bangngovan.netlify.app/policy Term : https://bangngovan.netlify.app/terms ## Key features - Accurate sleep tracking - Sleep reports and insights - Smart alarm - Relaxing sounds - Background monitoring - Battery optimization ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium Plan | $9.99 | per 7 days | ## Frequently asked questions about Sleep Diary ### What is Sleep Diary – Relax Sound? Sleep Diary – Relax Sound is an intelligent companion designed to help you understand and improve your nightly rest. It tracks sleep patterns, provides insights, and offers a smart alarm and relaxing sounds. ### How does Sleep Diary – Relax Sound track sleep? The app uses sound and sleep analysis technology to monitor sleep duration, stages, and overall quality. Simply place your phone near your bed, and it will handle the overnight monitoring. ### Does Sleep Diary – Relax Sound have a smart alarm? Yes, it features a smart alarm that wakes you up at the optimal moment by detecting your lightest sleep stage within a chosen time window, helping to reduce grogginess. ### Can Sleep Diary – Relax Sound help me relax? Yes, the app includes a 'Relax Sound' feature with calming sounds designed to help you unwind, reduce stress, and create a peaceful atmosphere for better sleep. ### Is Sleep Diary – Relax Sound free to use? The app is available for free, but it offers a Premium Plan with a 3-day free trial for $9.99 per 7 days, indicating a freemium monetization model. ### What devices does Sleep Diary – Relax Sound support? Currently, Sleep Diary – Relax Sound is supported on iPhone devices. ### How often is Sleep Diary – Relax Sound updated? The app was last updated on May 7, 2026, indicating a recent update. Version 1.1 was released on this date. ### What is the age rating for Sleep Diary – Relax Sound? Sleep Diary – Relax Sound has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 2 releases) ### 1.1 — 2026-05-07 Added new features and fixed bugs for a better experience. ### 1.0 — 2026-03-20 No release notes. ## More apps by Ngo Van Bang - [Photo Cleaner - Smart Cleaner](https://appshunter.io/ios/app/photo-cleaner-smart-cleaner/id6757508537) - [Print PDF, Photos & Documents](https://appshunter.io/ios/app/print-pdf-photos-and-documents/id6758153968) - [Qibla Finder - Muslim Compass](https://appshunter.io/ios/app/qibla-finder-muslim-compass/id6760011937) - [Art Magic – Photo Effects](https://appshunter.io/ios/app/art-magic-photo-effects/id6760742656) - [Scan Anything: Smart Scan](https://appshunter.io/ios/app/scan-anything-smart-scan/id6762447366) All apps by Ngo Van Bang: https://appshunter.io/developer/1867369562 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-27.*