Simple Clock vs Flip clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Basic time, date, week display
- Countdown timer
- Timing function
- Pomodoro timer
- Multiple themes and fonts
- Custom background image
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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
Flip clock
A digital clock app featuring a unique page-turning animation and customizable backgrounds. It includes white noise sounds, hourly chimes, and a timer for enhanced functionality. Personalize your display with various skins, colors, and animations.
- Page-turning digital clock animation
- 123 White Noise Sounds
- Customizable skins and colors
- Hourly chime and timer functions
- Charging animation
- Widget support
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Digital clock with page turning 1，23 White Noise Sounds 2，4 Flip Effects 3，4 Flip Sound Effects 4，11 Skins 5，Hourly Chime 6，Timer 7，Count Down 8，Widget 9，Customize Background 10，Customize Color 11，White Noise auto turn off 12，Daily Quote 13，Charging Animation 14，Show date/hide date 15，12 hours/24 hours 16，Display second hand/hide second hand 17，Turn on the sound/mute 18，Supports iPad and iPhone 19，Supports landscape and portrait SUBSCRIPTION PRICING AND TERMS This App can renew subscription automatically to help you unlock all content and features. Prices may vary from country to country and actual charges may be converted to your local currency based on the country of residence. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Read more about our terms and conditions here: Terms of service: https://shimo.im/docs/HdVYWPcryCcjvrgc/ Privacy policy: https://shimo.im/docs/HdVYWPcryCcjvrgc/ Email：From2019219@gmail.com
Screenshots
Verdict
The clearest difference is monetization model: Simple Clock at free with in-app purchases against Flip clock's subscription. Simple Clock also leads on review sentiment (75% vs 57%) and iOS requirement (11.0 vs 15.0). Flip clock's advantage is ads (none vs shown) and ratings volume (4.8K vs 297). On price, rating, 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
Both are free to download. Simple Clock sells 2 one-off in-app purchases and Flip clock sells 2 in-app purchases, starting at $5.49 per year. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.5 for Simple Clock against 4.6 for Flip clock. That said, the two scores are not equally well evidenced: Flip clock has 4.8K ratings behind it against 297, so its average is the more settled of the two. Written reviews are what separate them: 75% of Simple Clock's written reviews are positive against 57% of Flip clock's.
Simple Clock ships an update fortnightly, Flip clock every 3 weeks. The most recent releases landed on October 16, 2026 and October 17, 2026 respectively.
| Parameter | Simple Clock | Flip clock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (297 ratings) | 4.6 (4.8K ratings) — better |
| Positive reviews | 74.8% of reviews — better | 56.7% of reviews |
| Number of ratings | 297 | 4.8K — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 20 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | 乃君 黄 | Beijing Free Calculator Technology Co., Ltd. |
Customer experience
Simple Clock
Flip clock
User reviews
Simple Clock
From 297 App Store ratingsWhat we love
- 👍 Simplicity and ease of use
- 🌟 Good for study focus
- 🖼️ Customizable backgrounds/fonts
- ✨ Minimalist design
- 🚫 Ad-free (for some users)
Room to improve
- 💰 Many features require payment
- 🤔 Difficult to navigate/find options
- ⏳ Limited timer duration (free version)
- 📱 Some users report unresponsiveness
- 💸 Paid features should be free
Flip clock
From 4.8K App Store ratingsWhat we love
- 👍 Simple and straightforward
- 🌟 Customizable clock design
- 💤 Helpful for sleep and focus
- 🕰️ Useful as a desk clock
Room to improve
- 💰 Most features require a subscription
- 🔒 Limited functionality without paying
- 🐛 Occasional bugs and syncing issues
- 🕰️ Clock not always accurate
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 moreShow fewer
- 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 moreShow fewer
- 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
Flip clock
Reported bugs
3 issues- Widget freezes or stops updating
- Time display not syncing correctly
- Subscription issues and lost purchases
Requested features
4 requests- Add alarm clock functionality
- Allow customization of widget
- Improve dark mode/night settings
- Introduce more free features
In-app purchases
Simple Clock
- unlock all contents$0.99
- Support Developer$1.99
Flip clock
- Clock — annual subscription$5.491 Year
- Permanent purchase$3.99
