Best Sleep Time Calculator Apps

250+ iOS apps curated and reviewed

4.6 avg rating

20 free apps

Updated August 2026

Whether you're new to sleep time calculator or looking for an upgrade, our curated collection of 250+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Sleep Time Calculator Apps (August 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Sleep Time Calculator	Free	3.7★ (22)	No	No	May 2026
2	Sleep Timer – Smart alarm	Free	4.7★ (1.5K)	No	Yes	Sep 2026
3	Sleep Time - Alarm Calculator	Free	4.5★ (6)	No	No	Aug 2026
4	Sleep Cycle - Tracker & Sounds	Free	4.7★ (29K)	No	Yes	Sep 2026
5	Sleep Calculator Pro	Free	5.0★ (75)	No	No	Aug 2026
6	Sleep Time: Cycle Alarm Clock	Free	4.7★ (5.4K)	Yes	Yes	Sep 2026
7	sleepytime calculator	Free	4.9★ (13)	No	Yes	Aug 2026
8	Sleep Time Calc	Free	—	No	No	Sep 2026

Top Picks for Sleep Time Calculator

#1

Sleep Time Calculator by Recked Software LLC

Get the sleep you deserve

Editor's Choice

🔧 Utilities

3.7(22 ratings)

Free

Sleep Time Calculator screenshot 1

Sleep Time Calculator screenshot 2

Sleep Time Calculator screenshot 3

Sleep Time Calculator screenshot 4

This free utility helps you determine optimal wake-up times based on sleep cycles. It aims to reduce grogginess by recommending times to rise at the end of a sleep cycle, promoting a more alert feeling.

#2

Sleep Timer – Smart alarm by Kodeon, Inc.

Helps you wake up easy

Strong Contender

💪 Health & Fitness

4.7(1.5K ratings)

FreeIn-App Purchases

Sleep Timer – Smart alarm screenshot 1

Sleep Timer – Smart alarm screenshot 2

Sleep Timer – Smart alarm screenshot 3

Sleep Timer – Smart alarm screenshot 4

Sleep Timer – Smart alarm screenshot 5

Sleep Timer – Smart alarm screenshot 6

This app helps you wake up feeling refreshed by tracking your sleep cycles. It calculates the optimal time to go to bed or wake up based on your sleep patterns and allows you to set an alarm for the ideal moment.

#3

Sleep Time - Alarm Calculator by Oleg Filimonov

Sleep Efficiently

Worth Considering

🔧 Utilities

4.5(6 ratings)

Free

Sleep Time - Alarm Calculator screenshot 1

Sleep Time - Alarm Calculator screenshot 2

Sleep Time - Alarm Calculator screenshot 3

Sleep Time - Alarm Calculator screenshot 4

This utility helps you wake up feeling rested by calculating ideal sleep and wake-up times. It considers the time it takes to fall asleep and provides timely notifications. Enjoy a more efficient sleep schedule with its user-friendly interface.

More Sleep Time Calculator apps to explore

Sleep Cycle - Tracker & Sounds

Sleep Cycle - Tracker & Sounds

Sleep Cycle - Tracker & Sounds

Alarm Clock and Tracking App

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.

AI sleep coachSmart Alarm clockSleep pattern tracking

💪 Health & Fitness

free with in-app purchases

Sleep Calculator Pro

Sleep Calculator Pro

Sleep Calculator Pro

by DealWatch24 LLC

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

Sleep Time: Cycle Alarm Clock

Sleep Time: Cycle Alarm Clock

Sleep Time: Cycle Alarm Clock

Smart Bedtime Timer & Tracker

This app helps you fall asleep, stay asleep, and wake up refreshed with advanced sleep cycle analysis and a smart alarm. It offers detailed sleep tracking, soundscapes, and integration with Apple Health.

Smart alarm clock with single gesture settingSleep cycle analysisSoundscapes and white noise for falling asleep

💪 Health & Fitness

sleepytime calculator

sleepytime calculator

sleepytime calculator

Wake up refreshed

This app helps you determine optimal sleep and wake times to feel more rested. It calculates ideal bedtimes based on your desired sleep duration and natural sleep cycles.

Suggests ideal bedtimesCalculates wake-up timesBased on desired sleep length

💪 Health & Fitness

free with in-app purchases

Sleep Time Calc

Sleep Time Calc

Sleep Time Calc

by Pavel Moslienko

💪 Health & Fitness

Sleep Time+ Cycle Alarm Clock

Sleep Time+ Cycle Alarm Clock

Sleep Time+ Cycle Alarm Clock

Smart Bedtime Timer & Tracker

$8.99 | 100% OFF

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.

Sleep cycle analysisSoothing soundscapesResting heart rate measurement

💪 Health & Fitness

Good Time — Sleep Calculator

Good Time — Sleep Calculator

Good Time — Sleep Calculator

Sleep Cycle Time Calculator

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

Sleep Calculator - Sloth

Sleep Calculator - Sloth

Sleep Calculator - Sloth

Calculate your bed & wake time

💪 Health & Fitness

Mr Sleep - Sleep Calculator

Mr Sleep - Sleep Calculator

Mr Sleep - Sleep Calculator

Plan your best wake up time

💪 Health & Fitness

Sleep Cycle Simple Calculator

Sleep Cycle Simple Calculator

Sleep Cycle Simple Calculator

Know when to wake up fresh

💪 Health & Fitness

Wake Me After: Sleep Timer

Wake Me After: Sleep Timer

Wake Me After: Sleep Timer

Nap time alarm, ADHD.

Start Sleeping Better

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

Perfect Sleep, Perfect Timing

💪 Health & Fitness

Track Hours & Awake Time

💪 Health & Fitness

SleepViz: Sleep Recorder

SleepViz: Sleep Recorder

SleepViz: Sleep Recorder

Snore Tracker & Sleep Score

💪 Health & Fitness

Nighty: Sleep Cycle Calculator

Nighty: Sleep Cycle Calculator

Nighty: Sleep Cycle Calculator

Sleep Timing, Simplified

This app helps you time your sleep and wake-up schedule based on natural sleep cycles. It offers two simple modes, wake-up and bedtime, and accounts for the time it takes to fall asleep. All calculations are done on-device for privacy.

Sleep cycle-based timingWake-up modeBedtime mode

💪 Health & Fitness

sleep-2-Peak, sleep need tool

sleep-2-Peak, sleep need tool

sleep-2-Peak, sleep need tool

Get YOUR sleep, Give your BEST

This tool helps you understand your body's natural sleep needs and circadian rhythm. Measure alertness variations with simple tests to optimize your daily schedule for peak performance and wellbeing. Export your data for personal use or research.

Measure alertness variationsIdentify unique circadian rhythmOptimize sleep and activity schedules

💪 Health & Fitness

FAQ about Sleep Time Calculator

What are the best sleep time calculator apps for iPhone?

Sleep Time Calculator tops our sleep time calculator apps ranking as of August 2026, with a 3.7-star average from 22 App Store ratings, and it's free to download.

Are there free sleep time calculator apps for iPhone?

Yes — 20 of the top sleep time calculator apps we rank are free to download, including Sleep Time Calculator and Sleep Timer – Smart alarm.

Does Sleep Time Calculator have ads or in-app purchases?

Sleep Time Calculator has no ads and has no in-app purchases, according to its App Store listing as of August 2026.

How many sleep time calculator apps are on the App Store?

We track 250+ sleep time calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.

What does the Sleep Time Calculator app do?

This app helps you find the best times to wake up in the morning. It analyzes sleep cycles to recommend wake-up times that align with the end of a cycle, aiming to make you feel more awake and less groggy.

How does the app determine wake-up times?

The app is based on the understanding that sleep occurs in cycles, typically lasting around 90 minutes. Waking up at the end of a cycle, rather than in the middle, leads to feeling more alert. It calculates these optimal end-of-cycle wake-up times.