Best Readione By Fatigue Science Apps

229+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated July 2026

ReadiOne by Fatigue Science is the household name in readione by fatigue science, but it's far from the only option. We track 229+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Compare top Readione By Fatigue Science Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1ReadiOne by Fatigue ScienceReadiOne by Fatigue ScienceFree3.8★ (13)NoNoMay 2026
2Sleep Cycle - Tracker & SoundsSleep Cycle - Tracker & SoundsFree4.7★ (28K)NoYesAug 2026
3RISE: Sleep TrackerRISE: Sleep TrackerFree4.7★ (64K)YesYesAug 2026
4SleepScore by Sleep.aiSleepScore by Sleep.aiFree4.4★ (7.5K)NoYesAug 2026
5Sleep NumberSleep NumberFree4.5★ (147K)NoNoAug 2026
6Rest: Fix Your Sleep For GoodRest: Fix Your Sleep For GoodFree4.4★ (2.5K)NoYesAug 2026
7Visible: Pacing for illnessVisible: Pacing for illnessFree4.8★ (3.4K)NoNoAug 2026
8myAir™ by ResmedmyAir™ by ResmedFree4.7★ (109K)NoNoAug 2026

Top Picks for Readione By Fatigue Science

ReadiOne by Fatigue Science#1

ReadiOne by Fatigue Science by Fatigue Science

Editor's Choice
💪 Health & Fitness
3.8(13 ratings)
Free
ReadiOne by Fatigue Science screenshot 1
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This app helps workers visualize their real-time and future fatigue levels using a biomathematical model. It analyzes sleep data to predict performance impacts and identify periods of greatest fatigue risk, ensuring fitness for duty.

Sleep Cycle - Tracker & Sounds#2

Sleep Cycle - Tracker & Sounds by Sleep Cycle AB

Alarm Clock and Tracking App
Strong Contender
💪 Health & Fitness
4.7😐(28K ratings)
FreeIn-App Purchases
#70in Health & Fitness
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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.

What We Love

  • 🚀 Accurate sleep tracking
  • 👍 Gentle alarm wakes you up during light sleep
  • 📊 Detailed sleep data and insights
  • 🌙 Soothing sleep aid sounds

Room to Improve

  • 🐛 Alarm not always reliable, sometimes doesn't go off
  • 🔋 High battery drain, especially on Apple Watch
  • 💰 Expensive subscription model, limited free features
RISE: Sleep Tracker#3

RISE: Sleep Tracker by Rise Science Inc

Become a morning person
Worth Considering
💪 Health & Fitness
4.7😊(64K ratings)
FreeAdsIn-App Purchases
#25in Health & Fitness
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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.

What We Love

  • 🚀 Accurate sleep tracking
  • 📊 Helpful data insights
  • 🔍 Detailed sleep analysis
  • ⏰ Effective sleep scheduling

Room to Improve

  • 💰 Expensive subscription
  • 🕰️ Inaccurate sleep time tracking
  • 🔌 Battery drain issues

More Readione By Fatigue Science apps to explore

4
SleepScore by Sleep.ai
SleepScore by Sleep.ai
SleepScore by Sleep.ai
Proven to improve sleep
Free

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.

Patented sonar sleep trackingPersonalized actionable adviceSleep cycle analysis
💪 Health & Fitness
(7.5K)
freemium
5
Sleep Number
Sleep Number
Sleep Number
Start Sleeping Better
Free

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.

Personalized sleep insightsSleepIQ score trackingCircadian rhythm guidance
💪 Health & Fitness
(147K)
free
6
Rest: Fix Your Sleep For Good
Rest: Fix Your Sleep For Good
Rest: Fix Your Sleep For Good
Science Backed Program
Free

Improve your sleep with an AI-powered coach developed with sleep experts. Get a personalized plan, daily tasks, and habit-forming tools to achieve better sleep that lasts. Access expert advice and stay accountable with this science-backed program.

AI-powered sleep coachingPersonalized sleep plansScience-backed techniques
💪 Health & Fitness
(2.5K)
subscription
7
Visible: Pacing for illness
Visible: Pacing for illness
Visible: Pacing for illness
For Long Covid, ME/CFS, POTS+
Free

Manage energy-limiting health conditions like Long Covid and ME/CFS through personalized pacing insights. Track biometrics, log symptoms, and understand patterns to reduce crashes and improve daily well-being. Share health reports with your doctor and contribute to research.

Measure heart rate variability (HRV) and resting heart rateLog symptoms, medication, and daily exertionTrack patterns and understand biometric influences
💪 Health & Fitness
(3.4K)
free with in-app purchases
8
myAir™ by Resmed
myAir™ by Resmed
myAir™ by Resmed
Start and succeed with PAP
Free

This app guides users through setting up and succeeding with their PAP sleep therapy. It offers personalized coaching, tips, and videos to improve comfort and adherence. Users can track their progress with daily sleep therapy data and share insights with their healthcare team.

Guided setup with Personal Therapy AssistantMask fitting and comfort guidancePersonalized coaching and tips
🏥 Medical
(109K)
free
9
WHOOP
WHOOP
WHOOP
by WHOOP
Free

This wearable device and companion app provide in-depth health insights, including sleep, recovery, and strain levels. It offers personalized coaching and recommendations based on your body's unique physiology to help you achieve your health and fitness goals.

Personalized Sleep InsightsDaily Recovery ScoreCardiovascular & Muscular Strain Measurement
💪 Health & Fitness
(51K)
free with in-app purchases
10
CBT-i Coach
CBT-i Coach
CBT-i Coach
by US Department of Veterans Affairs (VA)
Free

This app guides users through Cognitive Behavioral Therapy for Insomnia (CBT-i) to improve sleep habits and alleviate insomnia symptoms. It teaches strategies for better sleep routines and environments, complementing professional therapy.

Sleep educationPositive sleep routinesSleep environment improvement
💪 Health & Fitness
(11K)
free
11
Sleeptracker®
Sleeptracker®
Sleeptracker®
Sleeptracker Hardware Required
Free

This app requires specific hardware to function, acting as a companion to smart bed monitors. It provides detailed sleep analysis, including sleep stages, heart rate, and respiration, with personalized AI coaching to help improve sleep quality. Features include a smart alarm and integration with Apple Health.

Detailed sleep stage tracking (REM, light, deep)Respiration and heart rate monitoringAI Sleep Coach with personalized tips
🌟 Lifestyle
(12K)
free with in-app purchases
12
Livity: Sleep & Health Tracker
Livity: Sleep & Health Tracker
Livity: Sleep & Health Tracker
Energy Level & Stress monitor
Free

This app provides advanced biometric tracking for personalized recovery, sleep, and training insights. It offers detailed analysis of heart rate variability, sleep stages, and cardiovascular load to optimize your physical potential and monitor overall health. Prioritizing privacy, all data is processed locally on your device.

Recovery Score (HRV & Resting HR)Sleep Analysis & OptimizationSmart Training Guidance
💪 Health & Fitness
(974)
free with in-app purchases
13
Eight Sleep
Eight Sleep
Eight Sleep
Advanced sleep fitness system
Free

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.

Personalized temperature controlAutomatic elevation adjustmentsSleep stage tracking
💪 Health & Fitness
(17K)
free with in-app purchases
14
Sleep Monitor: Sleep Tracker
Sleep Monitor: Sleep Tracker
Sleep Monitor: Sleep Tracker
Sleep Recorder, Talk & Cycle
Free

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.

Fall asleep faster with guided exercisesRecord snoring and sleep talkingTrack sleep cycles (light, deep, REM)
💪 Health & Fitness
(5.2K)
free with in-app purchases
15
NightOwl Companion
NightOwl Companion
NightOwl Companion
The NightOwl companion app
Free

Monitor your sleep for breathing disorders using a finger sensor. The app guides you through setup and data collection over several nights. Consult your healthcare provider for medical decisions.

Sleep breathing disorder detectionIndex finger sensor interactionIn-app instructional videos
🏥 Medical
(57K)
free
16
Tempur® Sleeptracker-AI®
Tempur® Sleeptracker-AI®
Tempur® Sleeptracker-AI®
For 2023 & Newer Smart Bases
Free

This app analyzes your sleep patterns without requiring you to wear anything. It provides detailed sleep graphs, metrics like heart rate and respiration, and personalized AI-driven tips to help you improve your sleep quality. Wake up refreshed with its smart alarm feature.

AI Sleep Coach with personalized tipsRespiration and heart rate monitoringSleep cycle alarm
🌟 Lifestyle
(29K)
free
17
SleepImage
SleepImage
SleepImage
Sleep Better – Live Better.
Free

This app records, transfers, and analyzes sleep quality data when paired with specific devices. It offers a simple, intuitive experience for understanding sleep diagnostics and empowering better health decisions. It is designed for reliability and accuracy, turning complex sleep information into actionable insights.

Record sleep quality dataTransfer sleep dataAnalyze sleep quality
💪 Health & Fitness
(179)
free
18
Pillow: Sleep Tracker
Pillow: Sleep Tracker
Pillow: Sleep Tracker
Smart Alarm & Snore Recorder
Free

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.

Automatic sleep trackingSmart alarm clockSnore and sleep talking recorder
💪 Health & Fitness
(96K)
freemium
19
PeakWatch: AI Health Coach
PeakWatch: AI Health Coach
PeakWatch: AI Health Coach
Sleep, Recovery & Nutrition
Free

This app analyzes your health data to provide personalized training recommendations, recovery insights, and sleep analysis. It offers AI-powered explanations, body energy tracking, and stress monitoring to help you train smarter and feel healthier.

AI-powered insights and explanationsBody Energy and Stress trackingHRV-based Recovery analysis
💪 Health & Fitness
(2.5K)
freemium
20
Athlytic: Fitness & Recovery
Athlytic: Fitness & Recovery
Athlytic: Fitness & Recovery
HRV Sleep & Training Coach
Free

This app analyzes your Apple Watch data to provide personalized insights into your recovery, exertion, and sleep. It offers daily recommendations for training, sleep targets, and bedtime, along with 24/7 health monitoring and detailed workout analysis.

HRV-based recovery analysisTargeted exertion guidancePersonalized sleep recommendations
💪 Health & Fitness
(11K)
free with in-app purchases

FAQ about Readione By Fatigue Science

What are the best readione by fatigue science apps for iPhone?
ReadiOne by Fatigue Science tops our readione by fatigue science apps ranking as of July 2026, with a 3.8-star average from 13 App Store ratings, and it's free to download.
Yes — 20 of the top readione by fatigue science apps we rank are free to download, including ReadiOne by Fatigue Science and Sleep Cycle - Tracker & Sounds.
ReadiOne by Fatigue Science has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 229+ readione by fatigue science apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
ReadiOne provides personal fatigue risk assessments and predicts performance impacts based on sleep analysis. It helps users visualize their fatigue levels and identify periods of greatest risk exposure.
ReadiOne uses the SAFTE biomathematical model to analyze sleep data. This data can come from wearable devices like Gamin or Fitbit, or be estimated by the ReadiML sleep forecasting engine.