Comparison

Chrono 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

Chrono

Features
Read full description

Chrono is a sleep tracker built on one idea: tracking your sleep should be simple. No complicated data. A cute companion joins your sleep journey. But first, let's find out which one is yours. DISCOVER YOUR CHRONOTYPE - Find your natural sleep rhythm - It wakes up with you every morning. Sleep well and it shows WORKS WITHOUT APPLE WATCH - Turn on Sleep Focus before bed and you are good to go - No need to keep your phone on all night - Have an Apple Watch? Even better. Detailed sleep stages included LEARN ABOUT YOUR SLEEP - 7-day guided journey with sleep science - Daily lessons personalized to your chronotype - Understand why you sleep the way you do Your little friend is waiting for you :) Try Chrono free for 7 days and then get Chrono Premium for $4.99/mo ($29.99/yr) Terms of Use & Privacy Policy: https://leonardobilhalva.github.io/chrono-legal-docs/

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.

Screenshots

Chrono4 screens
Simple Sleep4 screens

Verdict

The call

The clearest difference is ads: Chrono at none against Simple Sleep's shown. Chrono also leads on update cadence (every 3 days vs weekly). Simple Sleep's advantage is iOS requirement (15.1 vs 18.6). On price, 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. Chrono sells 6 in-app purchases, starting at $4.99 per month 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

Chrono ships an update every 3 days, Simple Sleep weekly. The most recent releases landed on October 16, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 6 level
Chrono versus Simple Sleep: the parameters behind the verdict, then further details
ParameterChronoSimple Sleep
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 days — betterWeekly
AdsNo — betterYes
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS18.615.1 — better
Further details — not scored
Size582 MB55 MB
Age rating+44+
DeveloperLeonardo Barros BilhalvaANJI, LLC

In-app purchases

6 purchases

Chrono

Subscriptions6
  • Chrono Premium - Monthly7 Days trial$4.991 Month
  • Chrono Premium - Monthly$4.991 Month
  • Chrono Premium - Annual 60% Off$11.991 Year
Show 3 more
  • Chrono Premium - Annual7 Days trial$20.991 Year
  • Chrono Premium - Annual$20.991 Year
  • Chrono Premium - Annual7 Days trial$29.991 Year
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 Chrono free?
Chrono 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 Chrono or Simple Sleep have ads?
Simple Sleep shows ads; Chrono does not.
Which is updated more often, Chrono or Simple Sleep?
Chrono ships an update every 3 days, and Simple Sleep weekly. Most recently, Chrono was updated on October 16, 2026 and Simple Sleep on October 6, 2026.

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