Comparison

MarkTimes vs Kitten Sleep

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

Head to head
About

MarkTimes

Easily record and track life events and health issues. Visualize your history with timelines and statistical charts to understand trends. Set reminders to ensure consistent tracking and maintain privacy with local or iCloud synced data.

Highlights
  • Event and health issue tracking
  • Timeline and calendar view
  • Statistical charts for trend analysis
  • Customizable event properties
  • Regular and unoccurred reminders
  • Local and iCloud data sync
Features
Read full description

MarkTimes can help you keep track of every life events and health issues. Have you ever struggled to remember how many times you drank coffee in a week, when was the last time your family did a major cleaning, or what caused your last upset stomach? These questions can be hard to recall, right?  MarkTimes can help you keep track of these life events and health issues. You can easily record any event and view your history through a timeline. Utilize statistical charts to understand trends, helping you better understand yourself. --- ► Timeline Displayed through a timeline and calendar view, you can quickly and clearly review records of any event or time. ► Charts View the frequency of your events over time in a clear chart. Compare and review trends on a daily, monthly, or yearly basis. ► Event Property You can add property to events to record different aspects. Currently, numerical and single-selection types are supported. After recording these property,s you can view them on the timeline and charts. ► Reminders You can set regular reminders for events to encourage you to record regularly. For events that haven't occurred, unoccurred reminders can alert you when the set number of days have passed. ► Privacy and Security We understand the sensitivity of your personal data. All your data is stored locally or on other devices where you have actively enabled iCloud sync. --- ► MarkTimes Pro Membership As a member, you can unlock all paid features of MarkTimes and enjoy free updates for future premium features. After confirming your purchase, payment will be charged to your iTunes account. Your Apple iTunes account will be charged for renewal within 24 hours before the end of the current period. You can manage or turn off auto-renewal in your iTunes Account Settings at any time after purchase. If you don’t cancel your subscription during the trial period, your subscription will automatically renew at the end of the trial period and you will be charged accordingly. Unused trial time will be forfeited upon purchasing a subscription. Whether to cancel the service is entirely up to you. If you choose not to cancel, you will be automatically enrolled in the renewal service for the next billing period. User Agreement: https://www.yuque.com/mojimomo/rol87o/gu6qh1uzb01hwwg5 Privacy Policy: https://www.yuque.com/mojimomo/rol87o/kq79146gbawz6615

About

Kitten Sleep

Effortlessly track your sleep without wearables using just your phone. Gain insights into sleep patterns, receive personalized AI scores, and monitor 30-day trends to improve sleep quality. Data is kept private and local.

Highlights
  • Automatic sleep tracking without wearables
  • Zero battery drain technology
  • Contact-free sleep analysis
  • Visualized sleep duration reports
  • AI Sleep Score
  • 30-day sleep trend analysis
  • 100% local data privacy
Features
Read full description

Kitten Sleep: Auto Sleep Tracking via Phone, Scientifically Improve Sleep Challenges. No wearables needed, simply place your phone by your pillow before bed to start effortless sleep tracking, making sleep optimization as natural as breathing. Core Features:
 【Auto Tracking, Effortless Monitoring】
No manual input required. Your phone intelligently detects sleep status, recording full-night data even if you forget to start tracking. Never miss a movement or deep sleep phase. 【Zero Battery Drain Tech】
Industry-first power-efficient monitoring. Track sleep all night without draining battery – wake up to a fully charged phone while safeguarding battery health. 【Contact-Free Revolution】
Ditch wristbands and skin irritation. Achieve professional-grade sleep analysis with just your phone, saving hundreds on hardware. Sleep freely, without constraints. 【Simplified Sleep Report】 • Visualized deep/light/awake durations – pinpoint sleep gaps in 3 seconds.
 • Proprietary AI Sleep Score: Personalized ratings based on age and biological rhythms, mirroring your body’s true state.
 • 30-Day Trends: Identify late-night habits, track progress, and validate improvements with data. Why Choose Us? * 90% of users uncover sleep patterns within 7 days. * Privacy First: Data stays 100% local, never uploaded to the cloud. Act Now – Transform Your Sleep Tonight!
Download now for a 3-day VIP trial!
A third of your life deserves care. Kitten Sleep turns every night into a health investment. Subscription Plans * Monthly: $2.99/month * Annual: $9.99/year Terms: 1. Payment will be charged to your iTunes Account upon confirmation. 2. Subscriptions auto-renew 24 hours before the current period ends. 3. Cancel anytime via iTunes/Apple ID settings at least 24 hours before renewal. 4. Unused trial periods forfeit upon subscription purchase. 5. You control cancellation – no fees if canceled timely. Legal
Privacy Policy: https://kittensleep.com/privacy.html
Terms of Use: https://kittensleep.com/terms.html
Subscription Terms: https://kittensleep.com/subscription.html Start your high-quality sleep journey tonight!

Screenshots

MarkTimes4 screens
Kitten Sleep4 screens

Verdict

The call

The clearest difference is ads: MarkTimes at none against Kitten Sleep's shown. MarkTimes also leads on rating (5.0 vs 4.8) and ratings volume (52 vs 15). On price, review sentiment, update cadence and in-app purchases 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. MarkTimes sells 4 in-app purchases, starting at $0.99 per month and Kitten Sleep sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

MarkTimes holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 52 and 15 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

MarkTimes ships an update every 5 days, Kitten Sleep every 9 days. The most recent releases landed on September 22, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
MarkTimes versus Kitten Sleep: the parameters behind the verdict, then further details
ParameterMarkTimesKitten Sleep
PriceFreeFree
Rating5.0 (52 ratings) — better4.8 (15 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings52 — better15
Update frequencyEvery 5 days — betterEvery 9 days
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size75 MB54 MB
Age rating4+4+
DeveloperJi Mo丽 郝

Customer experience

MarkTimes

All ratings52 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews120 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Kitten Sleep

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

MarkTimes

Subscriptions2
  • Membership - One Month$0.991 Month
  • Membership - OneYear7 Days trial$8.991 Year
One-time2
  • Lifetime Membership$12.99
  • Lifetime Membership$24.99
2 purchases

Kitten Sleep

Subscriptions2
  • monthly subscription$2.991 Month
  • Subscribe continuously 1 year3 Days trial$9.991 Year

Questions

Is MarkTimes free?
MarkTimes is free to download, with in-app purchases available.
Is Kitten Sleep free?
Kitten Sleep is free to download, with in-app purchases available.
Which has better reviews, MarkTimes or Kitten Sleep?
MarkTimes is rated higher. MarkTimes averages 5.0 out of 5 from 52 ratings, while Kitten Sleep averages 4.8 from 15 ratings.
Do MarkTimes or Kitten Sleep have ads?
Kitten Sleep shows ads; MarkTimes does not.
Which is updated more often, MarkTimes or Kitten Sleep?
MarkTimes ships an update every 5 days, and Kitten Sleep every 9 days. Most recently, MarkTimes was updated on September 22, 2026 and Kitten Sleep on September 14, 2026.

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