Comparison

Simple Clock vs MoonFlow

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

Head to head
About

Simple Clock

A straightforward digital clock designed for focus and study sessions. It offers a simple interface with essential timekeeping functions and customizable themes to enhance your work environment.

Highlights
  • Basic time, date, week display
  • Countdown timer
  • Timing function
  • Pomodoro timer
  • Multiple themes and fonts
  • Custom background image
Features
Read full description

This clock is very easy to use, open it, put it on a good place, that's it. All you have to do is enjoy your study hours. Supports: # Basic time / date / week display # Countdown function # Timing function # Tomato timer # Multiple themes and fonts # Custom background image

About

MoonFlow

Features
Read full description

Moon Flow: Sleep Tracker Track deeper. Sleep better. Wake up restored. Struggling to get a truly restful night’s sleep? Moon Flow is designed to help you understand your sleep, improve your mental state, and achieve deeper, healthier rest — naturally and consistently. In a fast-paced world filled with stress and overstimulation, quality sleep often feels out of reach. Moon Flow combines daily sleep tracking, audio-based sleep analysis, and personalized relaxation exercises to help you unwind, sleep deeply, and wake up refreshed. Sleep better, think clearer, and feel stronger — both mentally and physically. HOW MOON FLOW HELPS YOU SLEEP BETTER Moon Flow goes beyond basic sleep tracking. By analyzing your sleep patterns and nighttime audio, the app provides meaningful insights and actionable guidance to improve your overall sleep quality. CORE FEATURES • Daily Sleep Tracking Track your sleep every night and understand your sleep duration, consistency, and quality over time. • Audio-Based Sleep Analysis Moon Flow uses nighttime audio recording to analyze your sleep environment and patterns, helping identify factors that affect your rest. • Deep Sleep Insights Get detailed insights based on your personal sleep data — discover trends, habits, and areas for improvement backed by real metrics. • Mental Wellness & Relaxation Exercises Wind down before bed with guided breathing, relaxation, and mindfulness exercises designed to calm your mind and prepare your body for sleep. • Sleep Quality Optimization Personalized recommendations help you build healthier sleep routines and achieve more stable, restorative sleep. • Gentle Wake-Up Experience Wake up feeling refreshed and balanced, not rushed or exhausted. DESIGNED FOR YOU IF YOU: • Have trouble falling or staying asleep • Feel stressed, anxious, or mentally overloaded • Want to improve sleep quality and emotional well-being • Are building healthier nighttime routines • Want deeper insights into your sleep patterns • Care about both mental and physical health WHY QUALITY SLEEP MATTERS Sleep is the foundation of your health, focus, and emotional balance. Poor sleep affects productivity, mood, immunity, and long-term well-being. Moon Flow helps you take control of your sleep, so you can show up as the best version of yourself — every day. Stop guessing how well you slept. Start understanding, improving, and restoring your sleep with Moon Flow. PREMIUM SUBSCRIPTION Unlock the full Moon Flow experience with Premium access: • Advanced sleep insights • In-depth audio analysis • Personalized relaxation programs • Extended sleep history and trends • Continuous feature updates Subscriptions are auto-renewing unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Privacy Policy:https://homeaidecor.app/privacy.html Terms of Use (EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Sleep deeply. Wake gently. Live better. Try Moon Flow today and transform your nights.

Screenshots

Simple Clock4 screens
MoonFlow4 screens

Verdict

The call

The clearest difference is ads: MoonFlow at none against Simple Clock's shown. MoonFlow also leads on update cadence (every 4 days vs fortnightly). Simple Clock's advantage is iOS requirement (11.0 vs 17.0). 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. Simple Clock sells 2 one-off in-app purchases and MoonFlow sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Simple Clock ships an update fortnightly, MoonFlow every 4 days. The most recent releases landed on October 12, 2026 and September 19, 2026 respectively.

Scorecard3 real differences · 7 level
Simple Clock versus MoonFlow: the parameters behind the verdict, then further details
ParameterSimple ClockMoonFlow
PriceFreeFree
Rating4.5 (297 ratings) — better—
Positive reviews74.8% of reviews—
Number of ratings297 — better—
Update frequencyFortnightlyEvery 4 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size20 MB39 MB
Age rating4+4+
Developer乃君 黄App Dexter Limited

Bugs and requests

Simple Clock

Reported bugs

11 issues
  • Cannot exit timer mode
  • App unresponsive on some devices
  • Quit working correctly, stuck on military time
  • Cannot change clock design
  • Not compatible with iPhone
Show 6 more
  • Cannot restore purchases
  • Timer only 15 minutes in free version
  • App does not respond when operating from smartphone
  • Need to uninstall to delete timer
  • Custom image changes time number color to gray
  • App drains battery quickly

Requested features

17 requests
  • Add alarm function
  • Allow setting custom wallpaper and adjusting its size/position
  • Add option to change font color with custom images
  • Add a countdown feature
  • Add PiP mode for iPad
Show 12 more
  • Add option to keep night mode setting
  • Add option to change date format
  • Add option to change text color and position
  • Add stopwatch functionality
  • Add simple white noise sounds
  • Add music to the app
  • Add a daily total time recording function
  • Add option to change AM/PM to 00:00 format
  • Add option to disable second display
  • Add vertical mode for phones
  • Add analog/flip clock styles
  • Allow restoring purchases

MoonFlow

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Simple Clock

One-time2
  • unlock all contents$0.99
  • Support Developer$1.99
3 purchases

MoonFlow

Subscriptions3
  • PREMIUM USER WEEKLY$1.997 Days
  • PREMIUM USER MONTHLY3 Days trial$4.991 Month
  • PREMIUM USER YEARLY3 Days trial$39.991 Year

Questions

Is Simple Clock free?
Simple Clock is free to download, with in-app purchases available.
Is MoonFlow free?
MoonFlow is free to download, with in-app purchases available.
Do Simple Clock or MoonFlow have ads?
Simple Clock shows ads; MoonFlow does not.
Which is updated more often, Simple Clock or MoonFlow?
Simple Clock ships an update fortnightly, and MoonFlow every 4 days. Most recently, Simple Clock was updated on October 12, 2026 and MoonFlow on September 19, 2026.

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