Comparison

Celestial Sleep vs Simple Sleep

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Celestial Sleep

Features
Read full description

This is a companion app for our contactless smart sleep products, which can be used to view sleep reports, set up abnormal alarm, and control heating and massage functions.

About

Simple Sleep

Easily monitor your sleep patterns with a minimalist tracker. Understand your rest duration, bedtime, and wake-up times with simple one-tap logging. Set sleep goals and view comprehensive insights, all while prioritizing your privacy with on-device data processing.

Highlights
  • Effortless one-tap sleep tracking
  • Comprehensive sleep insights and data
  • Personalized sleep goal setting
  • Battery-friendly design
  • Live Activities and Dynamic Island integration
  • Apple Health synchronization
  • Privacy-first, on-device data processing
Features
Read full description

Simple Sleep is the easiest way to track your sleep patterns without the clutter. Designed for simplicity and privacy, it helps you understand your rest with just one tap. Say goodbye to complex sleep trackers that drain your battery. Simple Sleep is designed to be lightweight and efficient, ensuring your phone lasts through the night. KEY FEATURES: Effortless Tracking Just tap "Sleep" when you go to bed and "Wake Up" when you rise. The beautiful dark interface (Dark Mode) is easy on your eyes at night. Comprehensive Insights Explore the brand new Insights tab to understand your habits better. View your average sleep duration, typical bedtime and wake-up times, and sleep regularity with detailed data spanning recent days, weeks, and months. Sleep Goals Set a personalized sleep goal and track your consistency. Easily monitor your progress and see exactly how many days you've successfully reached your target rest. Battery Friendly Our optimized tracking engine doesn't run heavy background processes. Your phone sleeps when you do. Live Activities & Dynamic Island See your sleep timer at a glance right from your Lock Screen or Dynamic Island (on iPhone 14 Pro and newer). Never wonder if you're still tracking. Apple Health Integration Seamlessly sync your sleep start and end times with Apple Health. Your data contributes to your overall health view without staying locked in our app. Track Interruptions Woke up in the middle of the night? Easily record wake-up events without stopping your session, giving you a clearer picture of your sleep quality. Privacy First We believe your sleep data belongs to you. Simple Sleep works entirely on-device. No accounts to create, no data tracking servers, and your data stays private. Download Simple Sleep today and start understanding your sleep better, simply. Terms of Use (EULA): https://madebyanji.com/simple-sleep/terms Privacy Policy: https://www.madebyanji.com/simple-sleep/privacy

Screenshots

Celestial Sleep4 screens
Simple Sleep4 screens

Verdict

The call

The clearest difference is ads: Celestial Sleep at none against Simple Sleep's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Celestial Sleep sells 3 one-off in-app purchases and Simple Sleep sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Celestial Sleep ships an update fortnightly, Simple Sleep weekly. The most recent releases landed on October 18, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
Celestial Sleep versus Simple Sleep: the parameters behind the verdict, then further details
ParameterCelestial SleepSimple Sleep
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyFortnightlyWeekly — better
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size32 MB56 MB
Age rating4+4+
DeveloperCelestial, Inc.ANJI, LLC

In-app purchases

3 purchases

Celestial Sleep

One-time3
  • Guardian (Month)$0.99
  • Guardian (Quarter)$1.99
  • Guardian (Year)$9.99
4 purchases

Simple Sleep

Subscriptions3
  • Super Simple Sleep (1 Month)$2.991 Month
  • Super Simple Sleep (6 Months)3 Days trial$6.996 Months
  • Super Simple Sleep (1 Year)7 Days trial$9.691 Year
One-time1
  • Super Simple Sleep (Lifetime)$16.99

Questions

Is Celestial Sleep free?
Celestial Sleep is free to download, with in-app purchases available.
Is Simple Sleep free?
Simple Sleep is free to download, with in-app purchases available.
Do Celestial Sleep or Simple Sleep have ads?
Simple Sleep shows ads; Celestial Sleep does not.
Which is updated more often, Celestial Sleep or Simple Sleep?
Celestial Sleep ships an update fortnightly, and Simple Sleep weekly. Most recently, Celestial Sleep was updated on October 18, 2026 and Simple Sleep on October 24, 2026.

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