This app helps you manage your sleep cycle using the scientifically-backed R90 method. It calculates your optimal sleep schedule based on natural biological rhythms to improve sleep quality by focusing on completing 90-minute cycles.





231+ iOS apps curated and reviewed
Looking for free r90 sleep assistant apps? 20 of our 231+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | — | No | Yes | Aug 2026 | |
| 2 | Free | 4.8★ (17K) | No | Yes | Sep 2026 | |
| 3 | Free | 4.8★ (7.8K) | Yes | Yes | Sep 2026 | |
| 4 | Free | 4.6★ (5.2K) | Yes | Yes | Sep 2026 | |
| 5 | Free | 4.7★ (67K) | Yes | Yes | Sep 2026 | |
| 6 | Free | 4.4★ (7.5K) | No | Yes | Aug 2026 | |
| 7 | Free | 4.5★ (62K) | No | Yes | Sep 2026 | |
| 8 | Free | 4.3★ (9.6K) | Yes | Yes | Sep 2026 |





This app helps you manage your sleep cycle using the scientifically-backed R90 method. It calculates your optimal sleep schedule based on natural biological rhythms to improve sleep quality by focusing on completing 90-minute cycles.






This intelligent sleep system actively manages your sleep environment by adjusting temperature and elevation. It tracks detailed sleep metrics and provides personalized insights to help you wake up feeling refreshed. The system supports individual sleep profiles for multiple users.






This intelligent sleep assistant helps you understand your sleep patterns with detailed analysis and recordings of snoring or sleep talking. It offers a library of relaxation tools, including meditation and sleep stories, to improve sleep quality and features a smart alarm to help you wake up refreshed.


This app helps you sleep better by tracking your sleep cycles, recording snoring and sleep talking, and offering guided exercises and soothing sounds. It provides detailed reports and smart alarms to help you wake up refreshed.


This app helps you improve sleep and energy levels by tracking sleep debt and circadian rhythms. It offers personalized recommendations, guided meditations, and smart alarms based on sleep science.


This app uses patented sonar technology to track your sleep cycles and provide personalized, science-backed advice for improvement. It offers features like sleep sounds, a smart alarm, and lifestyle challenges to help you fall asleep faster and wake up refreshed.


This app helps users of all ages achieve better sleep through a smart bedside device. It offers customizable sunrise alarms, soothing sounds, and sleep cues to establish restful routines from sunset to sunrise. Features vary by device, including portable options with backup batteries.


Drift off to sleep with a variety of soothing content, including narrated stories, guided meditations, and ambient sounds. Manage stress and anxiety to improve sleep quality and establish a consistent bedtime routine.


This app helps you understand and improve your sleep. It automatically tracks your sleep cycles, analyzes heart rate, and records audio events like snoring. Get personalized insights and tips to wake up feeling refreshed.


This app uses sound analysis to track sleep patterns, identify potential issues, and build healthier sleep routines. It features an AI sleep coach, a smart alarm to wake you gently, and tools to record snoring and sleep talking.


Improve your sleep quality and wake up feeling refreshed. This app uses advanced sonar technology to track your sleep stages without wearables, providing a daily SleepScore and personalized recommendations. Optimize your bedroom environment and utilize smart alarm features for better rest.


This app helps users fall asleep faster and improve sleep quality with a vast library of bedtime stories, guided meditations, and ambient sounds. It also features smart sleep tracking and a gentle alarm to enhance your rest and well-being.


This app monitors your sleep cycles using your device's accelerometer to wake you during your lightest sleep phase. It offers features like sleep talking recording, sleep data visualization, and automatic music player shutdown. Wake up feeling more refreshed with intelligent alarm management.


This app uses AI to detect and record snoring, sleep talking, and screaming. It offers personalized alarms, sleep cycle tracking, and detailed analytics to help you understand and improve your sleep quality. It can also mask snoring sounds to avoid disturbing your partner.


This app works with a smart bed to provide personalized sleep and health insights. It tracks biosignals, adjusts bed settings, and offers data to help you understand and improve your sleep quality over time.


This app provides a simple and effective way to fall asleep faster and stay asleep longer. It offers various calming sounds and customizable timers, with premium features like sleep tracking and additional audio options.


Improve your sleep with a comprehensive suite of tools. Track your sleep patterns, record nighttime sounds, and access a vast library of calming audio content, including meditations, stories, and soundscapes. Experts recommend this app for better rest and well-being.


Understand your sleep patterns and wake up feeling refreshed. This app tracks sleep cycles, offers soothing soundscapes for falling asleep, and measures resting heart rate without wearables. It provides detailed analysis and customizable alarms to optimize your sleep and wake-up experience.


This app helps you improve your sleep with a variety of tools. It offers relaxing sounds, music, guided breathing, and sleep stories. You can also track your sleep duration, quality, and analyze sleep sounds like snoring.


Improve your sleep with a comprehensive sleep tracker and a library of relaxing sounds. Understand your sleep cycles, track snoring, and wake up gently with a smart alarm. Designed for those seeking better rest and vitality.