# Shelly Sleep — Sound therapy for better sleep > Sleep quality enhancer using pink noise and AI-driven sleep cycle analysis. (iPhone/iPad app by Virallinq.) - Source: https://appshunter.io/ios/app/shelly-sleep/id1518758226 (this page in markdown: same URL + `.md`) - Developer: [Virallinq](https://appshunter.io/developer/1497948002) - Category: Health & Fitness - Price: Free with in-app purchases - Rating: 3.90/5 from 7 App Store ratings - Age rating: 4+ - Requires: iOS 13.0 · 36 MB - Languages: American English, Turkish - Released: 2021-06-08 - Data updated: 2026-07-04 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/shelly-sleep/id1518758226/reviews.md ## What is Shelly Sleep? Shelly is a unique alarm clock that improves sleep quality by pink noise stimulation. 1- Presleep: 4-7-8 Breathing technique will help you to sleep faster. 2- During Sleep: Shelly detects your sleep cycle and plays pink noise while you are having hard time to get in Deep Sleep.This will prolongs your deep sleep duration. 3- Awakening: You will wake up in light sleep, start ready for the day ahead. Our method has been scientifically proven under the name of Brainwave Entrainment. You may find numerous academic studies about the benefits of Sound Therapy on our website. Try Shelly to improve memory, mental health, and motivation. How to use: -Set an alarm before sleep. -Shelly will detect your sleep cycle from breathing patterns. -Sound Therapy will start when you are in the Deep Sleep stage. -Sound Therapy will stop when you leave the Deep Sleep stage. -Shelly will provide detailed analytics after you wake up. Have a Shelly Sleep tonight! ——————————————— BACKED BY DATA SCIENCE Shelly runs unique Machine Learning models to apply this method to your sleep. ◉Sound Recognition Sound recognition is a technology, which is based on both traditional pattern recognition theories and sound signal analysis methods. Shelly uses this method to contain preliminary data processing, feature extraction, and classification algorithms. ◉Machine Learning We analyze your sleep cycle through several machine learning models. The more Shelly learns about your sleep, the better quality sleep you will get. ◉Personalized Analytics Your sleep is personal! Sleep biology is as unique as your fingerprint. That's why Shelly has a customized analytics platform within the app. QUALITY SLEEP FOR HEALTHY BRAIN Sleep is important to a number of brain functions, including how nerve cells (neurons) communicate with each other. Improve your sleep to have a healthy brain. ◉Strengthen Attention People may improve focusing on tasks for any length of time without being easily distracted after getting quality sleep at night. ◉Reduce Anxiety Poor sleep looks the same as severe anxiety in the brain. It will make some people more likely to develop an anxiety disorder. ◉Enhance Memory Memorization occurs during the Deep Sleep stage. Improve your Deep Sleep to remember better. ——————————————— Health App Your sleep biology is as unique as your fingerprint. Shelly has an integration with Health app that will make sound therapy personalised. Our tailor made approach will improve itself through your regular usage. It will learn more about your sleep behaviour and improve your sleep more over time. Please seek a doctor’s advice in addition to using this app and before making any medical decisions. Here you can find the scientific base of our approach: https://academic.oup.com/sleep/article/42/5/zsz036/5308336 Subscription information Shelly offers two auto-renewing subscription options: €9.49 per month €39.99 per year (€3.33 a month) Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. Your payment will be charged to your iTunes Account as soon as you confirm your purchase. You can manage your subscriptions and turn off auto-renewal from your Account Settings after the purchase. It will renew automatically unless you turn off auto-renew at least 24 hours before the end of the current period. The cost of renewal will be charged to your account 24 hours prior to the end of the current period. When canceling a subscription, it will stay active until the end of the period. Auto-renewal will be disabled, but the current subscription will not be refunded. Privacy Policy: https://shellysleep.com/privacy_policy Terms of Service: https://shellysleep.com/terms_of_service Website: https://shellysleep.com/ ## Key features - Pink noise stimulation - 4-7-8 Breathing technique - Sleep cycle detection - Machine learning analysis - Personalized sleep analytics - Health app integration ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Shelly Plus | $28.99 | per year | | Shelly Plus | $10.99 | per month | ## Frequently asked questions about Shelly Sleep ### Does Shelly have ads? No, Shelly does not contain advertisements. It is a free app with optional in-app purchases for enhanced features. ### What are the subscription options for Shelly? Shelly offers two auto-renewing subscription options: €9.49 per month or €39.99 per year. Pricing may vary by country. ### What is the free trial period for Shelly? The Shelly Plus annual subscription includes a 14-day free trial. This allows users to experience the premium features before committing to a purchase. ### How does Shelly track sleep cycles? Shelly uses machine learning models and sound recognition technology to analyze breathing patterns and detect your sleep cycle stages, including Deep Sleep. ### What are the benefits of using Shelly? Shelly aims to improve sleep quality, strengthen attention, reduce anxiety, and enhance memory by utilizing pink noise stimulation and personalized sleep analytics. ### Is Shelly suitable for all ages? Shelly has an age rating of 4+, making it suitable for a wide range of users. However, it is recommended to seek a doctor's advice before making any medical decisions. ### How often is Shelly updated? The latest version of Shelly is 1.28, which was last updated on August 10, 2021. Updates are released to improve functionality and machine learning models. ### What devices does Shelly support? Shelly is supported on iPhone and iPod devices. It also integrates with the Health app for personalized sound therapy. ## Version history (last 5 releases) ### 1.28 — 2021-08-10 - Minor bugs fixed - Settings UI changed - No Alarm mode ### 1.27 — 2021-07-31 - Screenshots renewed - Minor bugs fixed ### 1.26 — 2021-07-23 - New page designs - Presleep breathing session - New screenshots for store - Minor bugs fixed ### 1.25 — 2021-07-01 üçük Minor bugs fixed ### 1.24 — 2021-06-18 - New alarm picker design - New Page: The Science - Minor bugs fixed ## Apps similar to Shelly Sleep | App | Rating | Price | Category | | --- | --- | --- | --- | | [Sleepwave: Alarm & Tracker](https://appshunter.io/ios/app/sleepwave-alarm-and-tracker/id1565509007) | 4.7 (6,410) | Free | Health & Fitness | | [Sleep Cycle - Tracker & Sounds](https://appshunter.io/ios/app/sleep-cycle-tracker-and-sounds/id320606217) | 4.7 (26,175) | Free | Health & Fitness | | [Sleep Time: Cycle Alarm Clock](https://appshunter.io/ios/app/sleep-time-cycle-alarm-clock/id555564825) | 4.7 (5,367) | Free | Health & Fitness | | [Sleep Time+ Cycle Alarm Clock](https://appshunter.io/ios/app/sleep-time-plus-cycle-alarm-clock/id498360026) | 4.8 (2,482) | Free | Health & Fitness | | [BetterSleep: Relax and Sleep](https://appshunter.io/ios/app/bettersleep-relax-and-sleep/id314498713) | 4.7 (390,474) | Free | Health & Fitness | | [Avrora Sleep Sounds & Stories](https://appshunter.io/ios/app/avrora-sleep-sounds-and-stories/id1441091033) | 4.5 (17,920) | Free | Health & Fitness | --- *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 2026-07-04.*