ATclock vs Simple Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ATclock
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The APP ATClock is for controlling the LED clock. Users can view the information anytime and anywhere after connecting. You can easily set the alarm, count down timer, brightness, switch the temperature unit, etc.
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
Screenshots
Verdict
The clearest difference is in-app purchases: ATclock at none against Simple Clock's 2. ATclock also leads on ads (none vs shown) and update cadence (weekly vs fortnightly). On price 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
Both are free to download. Simple Clock sells 2 one-off in-app purchases. ATclock asks for nothing beyond the download.
ATclock ships an update weekly, Simple Clock fortnightly. The most recent releases landed on September 20, 2026 and October 12, 2026 respectively.
| Parameter | ATclock | Simple Clock |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (297 ratings) — better |
| Positive reviews | — | 74.8% of reviews |
| Number of ratings | — | 297 — better |
| Update frequency | Weekly — better | Fortnightly |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 11.0 |
| Further details — not scored | ||
| Size | 11 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | ADSMART TECHNOLOGY LIMITED | 乃君 黄 |
Bugs and requests
ATclock
Not enough reviews yet to summarise bugs or 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
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- 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
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- 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
In-app purchases
ATclock
No in-app purchases
Simple Clock
- unlock all contents$0.99
- Support Developer$1.99
