Best apps like SleepSync: Sleep Calculator

9+ similar apps compared and reviewed

3.7 avg rating
9 free apps
Updated September 2026

SleepSync is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to SleepSync

Circadian: Your Natural Rhythm#1

Circadian: Your Natural Rhythm by Circadian Limited

Wellness & health cycles clock
Editor's Choice
πŸ’ͺ Health & Fitness
4.6😊(664 ratings)
FreeIn-App Purchases
Circadian: Your Natural Rhythm screenshot 1
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Circadian: Your Natural Rhythm screenshot 6

Optimize your daily activities by syncing with natural rhythms. This app helps you wake, eat, move, work, and rest at optimal times for improved energy, clarity, and sleep. It leverages sunlight, seasons, and scientific principles to guide your lifestyle for better health.

What We Love

  • πŸ‘ Easy to use
  • πŸ’‘ Informative and educational
  • πŸš€ Helpful reminders and notifications
  • 🌞 Supports circadian rhythm and natural lifestyle

Room to Improve

  • πŸ› Crashes and bugs
  • πŸ•°οΈ Inaccurate timing and location tracking
  • πŸ’° Expensive subscription model
Sleep Aid: For Shift Workers#2

Sleep Aid: For Shift Workers by Tunde Alao

Sleep Schedule For Shift Work
Strong Contender
πŸ’ͺ Health & Fitness
1.0(2 ratings)
FreeIn-App Purchases
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This app helps shift workers optimize their sleep schedules using scientific recommendations. It provides personalized sleep and coffee timing advice, and syncs with your work calendar for seamless planning. Improve your well-being with a consistent and restorative sleep cycle.

Clairoe: Life in Rhythm#3

Clairoe: Life in Rhythm by Arcascope Inc

Personalized daily schedules
Worth Considering
πŸ’ͺ Health & Fitness
4.4(58 ratings)
FreeIn-App Purchases
Clairoe: Life in Rhythm screenshot 1
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This app uses your unique circadian rhythms to create personalized daily schedules for sleep, energy, and focus. It integrates with your health data to suggest optimal times for light, meals, caffeine, workouts, and rest, helping you align your habits with your body's internal clock.

More apps like SleepSync

4
Timeshifter Shift Work
Timeshifter Shift Work
Timeshifter Shift Work
Optimize your sleep and energy
Free

Optimize your sleep and energy levels with science-based guidance tailored for shift workers. This app provides personalized advice to combat circadian disruption, improving performance, health, and quality of life. It replaces common myths with evidence-based interventions to reset your internal clock.

Personalized circadian clock advicePractical real-world adjustmentsQuick shift schedule entry
πŸ’ͺ Health & Fitness
(19)
free with in-app purchases
5
Arcasync
Arcasync
Arcasync
by Arcascope Inc
Free

Optimize your daily energy and well-being by aligning your lifestyle with your body's natural rhythms. This app analyzes heart rate, step count, and daylight exposure to provide personalized insights and strategies for better sleep, reduced fatigue, and enhanced energy.

Analyze heart rate, step count, and daylight exposurePersonalized insights and actionable plansOptimize daily energy and well-being
πŸ’ͺ Health & Fitness
(1)
free
6
Lumos Sleep
Lumos Sleep
Lumos Sleep
Unlock Optimal Sleep Potential
Free

This app helps you combat jet lag, improve sleep during night shifts, and wake up feeling refreshed. It uses patented technology and a proprietary algorithm to regulate your body's natural circadian rhythm, offering tailored programs for various sleep schedules.

Jet lag and night shift assistanceCircadian rhythm regulationTailored sleep programs
πŸ’ͺ Health & Fitness
(13)
free
7
Good Time β€” Sleep Calculator
Good Time β€” Sleep Calculator
Good Time β€” Sleep Calculator
Sleep Cycle Time Calculator
Free

This app calculates optimal bedtime and wake-up times to help you feel refreshed. It uses sleep cycle data to suggest when to go to sleep if you're going to bed now, or when to wake up based on your desired bedtime. It also offers sleeping tips and reminders.

Calculate wake-up time from current bedtimeCalculate bedtime from desired wake-up timeSet bedtime reminders
πŸ’ͺ Health & Fitness
(5)
free
8
Sleep Calculator Pro
Sleep Calculator Pro
Sleep Calculator Pro
by DealWatch24 LLC
Free

This app helps you determine the optimal times to go to sleep and wake up to align with your natural 90-minute sleep cycles. It calculates ideal bedtime based on your desired wake-up time and vice-versa, promoting a more rested feeling upon waking. It also includes features for tracking sleep phases and a smart alarm to wake you gently.

Calculate best time to go to sleepCalculate best time to wake upTrack and analyze sleep cycles
πŸ’ͺ Health & Fitness
(75)
free
9
Lifestack: AI Planner for ADHD
Lifestack: AI Planner for ADHD
Lifestack: AI Planner for ADHD
Circadian Calendar,Oura, WHOOP
Free

This AI-powered planner creates a smart calendar aligned with your energy levels, helping you stay productive without burnout. It integrates with health data from wearables and other apps to adapt your schedule in real time.

AI-powered daily planningEnergy-first schedulingADHD-friendly routines
πŸ’ͺ Health & Fitness
(67)
subscription