Shelly Sleep 4+

Sound therapy for better sleep


Designed for iPhone

    • 4.9 • 7 Ratings
    • Free
    • Offers In-App Purchases

iPhone Screenshots


Sound therapy for quality 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!


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.

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:

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:
Terms of Service:

What’s New

Version 1.28

- Minor bugs fixed
- Settings UI changed
- No Alarm mode

Ratings and Reviews

4.9 out of 5
7 Ratings

7 Ratings

bigeergez ,

Endlich erholsam Schlafen

Ich suche seit ner Weile nach nem App, die mir hilft besser zu schlafen, da ich mich tagsüber oft schlapp fühle. Die meisten fokussieren sich entweder auf die Einschlaf-Phase (bei mir meistens problemlos) oder machen nur Tracking. Shelly allerdings erzielt mit Einsatz von delta waves die Verlängerung der Tiefschlafphase und analysiert den gesamten Schlaf. Habe die App jetzt paar Tage hintereinander benutzt und stellte direkt fest, dass mein Schlaf erholsamer wurde. Die wissenschaftliche Grundlage macht das Ganze vertrauenswürdig für mich. Top App für alle die ihre Schlafqualität verbessern wollen.

Katinka408 ,

Schlafe viel besser

Ich habe die App jetzt regelmäßig benutzt und merkte wirklich dass ich besser schlafe. Auch die Analyse macht’s viel einfacher den eigenen Schlaf zu verstehen und sehr akkurat. Top App.

Casey_tal ,

Unique Solution

This is very different than other sleep tracking apps. It applies sound therapy for several minutes during deep sleep. It didn't disturb me and helped me to wake up more rested last couple days.
Recommended 👍🏼

App Privacy

The developer, Virallinq, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • User Content

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info

Privacy practices may vary based on, for example, the features you use or your age. Learn More

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