Best SleepSync alternatives: apps like SleepSync: Sleep Calculator

8+ similar apps compared and reviewed

3.9 avg rating
8 free apps
Updated November 2026

SleepSync is great, but it's not the only option. Explore 8+ 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

Clairoe: Life in Rhythm#1

Clairoe: Life in Rhythm by Arcascope Inc

Personalized daily schedules
Editor's Choice
💪 Health & Fitness
4.4(59 ratings)
FreeIn-App Purchases
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This app helps you align your daily habits with your body's natural internal clock. It uses your unique circadian rhythms to provide personalized recommendations for sleep, meals, caffeine, and workouts, optimizing your energy and focus.

Timeshifter Shift Work#2

Timeshifter Shift Work by Timeshifter Inc.

Better sleep and energy
Strong Contender
💪 Health & Fitness
4.0(22 ratings)
FreeIn-App Purchases
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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.

Lumos Sleep#3

Lumos Sleep by LumosTech, Inc.

Unlock Optimal Sleep Potential
Worth Considering
💪 Health & Fitness
2.5(16 ratings)
Free
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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.

More apps like SleepSync

4
Good Time — Sleep Calculator
Good Time — Sleep Calculator
Good Time — 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
💪 Health & Fitness
(5)
free
5
Sleep Calculator App
Sleep Calculator App
Sleep Calculator App
Sleep Cycles
Free

Optimize your sleep by calculating ideal bedtime and wake-up times based on natural 90-minute sleep cycles. Includes relaxing sounds and meditation to help you fall asleep faster and wake up feeling refreshed.

Calculate best bedtimeCalculate best wake-up timeSelect desired wake-up time
💪 Health & Fitness
(2)
free with in-app purchases
6
Sleep Calculator Pro
Sleep Calculator Pro
Sleep Calculator Pro
Sleep cycles & smart alarm
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
💪 Health & Fitness
(76)
free
7
Circadian: Your Natural Rhythm
Circadian: Your Natural Rhythm
Circadian: Your Natural Rhythm
Wellness & health cycles clock
Free

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.

Sync daily activities to natural rhythmsOptimize wake, eat, move, work, and rest timesAlign with sunlight and seasonal patterns
💪 Health & Fitness
(668)
free with in-app purchases
8
Lifestack: AI Planner for ADHD
Lifestack: AI Planner for ADHD
Lifestack: AI Planner for ADHD
Circadian Calendar,Oura, WHOOP
Free

This AI-powered planner helps you organize your day, build routines, and schedule tasks based on your energy levels. It integrates with health trackers and calendars to create a personalized plan that boosts focus and productivity without burnout.

AI-powered daily and routine planningEnergy-based task schedulingADHD-friendly structured routines
💪 Health & Fitness
(73)
subscription