Best Sleep Calculator Apps

247+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated September 2026

Out of 247+ sleep calculator apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Sleep Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sleep Calculator ProSleep Calculator ProFree5.0★ (76)NoNoSep 2026
2Sleep Calculator PlusSleep Calculator PlusFree4.8★ (31)NoNoSep 2026
3Sleep Cycle - Tracker & SoundsSleep Cycle - Tracker & SoundsFree4.7★ (30K)NoYesOct 2026
4RISE: Sleep TrackerRISE: Sleep TrackerFree4.7★ (70K)YesYesOct 2026
5Sleep Timer – Smart alarmSleep Timer – Smart alarmFree4.7★ (1.5K)NoYesSep 2026
6Sleep Time CalculatorSleep Time CalculatorFree3.7★ (22)NoNoMay 2026
7Sleep Cycle - Sleep CalculatorSleep Cycle - Sleep CalculatorFree4.5★ (19)YesYesAug 2026
8SleepCycle: Sleep CalculatorSleepCycle: Sleep CalculatorFree5.0★ (1)NoYesOct 2026

Top Picks for Sleep Calculator

Sleep Calculator Pro#1

Sleep Calculator Pro by DealWatch24 LLC

Sleep cycles & smart alarm
Editor's Choice
💪 Health & Fitness
5.0(76 ratings)
Free
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Sleep Calculator Pro screenshot 6

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.

Sleep Cycle - Tracker & Sounds#3

Sleep Cycle - Tracker & Sounds by Sleep Cycle AB

Alarm Clock and Tracking App
Worth Considering
💪 Health & Fitness
4.7😐(30K ratings)
FreeIn-App Purchases
#67in Health & Fitness
Sleep Cycle - Tracker & Sounds screenshot 1
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Sleep Cycle - Tracker & Sounds screenshot 5
Sleep Cycle - Tracker & Sounds screenshot 6

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
  • 📉 Inaccurate sleep tracking in some cases

More Sleep Calculator apps to explore

FAQ about Sleep Calculator

What are the best sleep calculator apps for iPhone?
Sleep Calculator Pro tops our sleep calculator apps ranking as of September 2026, with a 5.0-star average from 76 App Store ratings, and it's free to download.
Yes — 20 of the top sleep calculator apps we rank are free to download, including Sleep Calculator Pro and Sleep Calculator Plus.
Sleep Calculator Pro has no ads and has no in-app purchases, according to its App Store listing as of September 2026.
We track 247+ sleep calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.

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