Standby Clock vs AClock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Standby Clock
This app transforms your device into a full-screen digital clock with customizable fonts and colors. It offers a musical alarm, displays seconds on the dynamic island and lock screen, and can broadcast the time hourly. Enjoy background alarms with custom ringtones and various widget options.
- Full-screen digital time display
- Seconds on dynamic island and lock screen
- Customizable digital font styles and colors
- Musical alarm with custom ringtones
- Hourly chime and voice broadcasting
- Lock screen and Home Screen widgets
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Standby Clock, a beautiful music alarm clock that displays full-screen digital time. - Show seconds on dynamic island and lock screen - Provide a variety of digital font styles - Custom Clock Digital Color - Hourly Chime, Hourly voice broadcasting time - Display date, week, etc. - Support background alarm clock and custom music ringtones. - Support Home Screen widget, Lock Screen Widget, Standby mode.
AClock
This minimalist clock app offers a variety of display styles, including page-turning and classic digital. It includes a stopwatch, countdown timer, and Pomodoro timer, with customizable colors, fonts, and motivational slogans. The app also features a night mode for eye protection and is designed for extreme power saving.
- Page turning and classic digital clock displays
- Built-in stopwatch and countdown timer
- Pomodoro timer functionality
- Countdown to specific dates
- Customizable font, color, and background
- Night mode for eye protection
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AClock is a fully functional, minimalist design, extreme power saving, lightweight and efficient clock app. special function: 1. Switch between page turning clock and classic digital clock as you like 2. Built-in convenient stopwatch, countdown, Pomodoro 3. Display of countdown days and anniversaries to create your own personalized clock 4. Customize the font color and size, and customize the background color 5. Customize your inspirational slogan to encourage your dedicated self~ 6. Date, second, motivational slogan, custom display 7. Support night mode, more eye protection 8. Support 12-hour system and 24-hour system 9. Extremely power saving, all-round optimization, escort the power 10. Countdown to the exam
Screenshots
Verdict
The clearest difference is in-app purchases: AClock at none against Standby Clock's 3. AClock also leads on review sentiment (89% vs 61%). Standby Clock's advantage is ratings volume (716 vs 56). On price, rating, update cadence and ads 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. Standby Clock sells 3 one-off in-app purchases. AClock asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.4 for Standby Clock against 4.4 for AClock. That said, the two scores are not equally well evidenced: Standby Clock has 716 ratings behind it against 56, so its average is the more settled of the two. Written reviews are what separate them: 61% of Standby Clock's written reviews are positive against 89% of AClock's.
Standby Clock ships an update every 6 weeks, AClock every 2 months. Both last shipped on November 3, 2026.
| Parameter | Standby Clock | AClock |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (716 ratings) | 4.4 (56 ratings) — better |
| Positive reviews | 61.2% of reviews | 89.3% of reviews — better |
| Number of ratings | 716 — better | 56 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Ad-supported — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 56 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | 云云 唐 | Zhengzhou Sibo Intelligent Technology Co., Ltd. |
Customer experience
Standby Clock
AClock
Bugs and requests
Standby Clock
Reported bugs
2 issues- Clock not displaying properly on home screen
- Alarm not working as expected
Requested features
4 requests- Add horizontal time display option
- Include weather and date information
- Improve screen timeout settings
- Offer more customization options
AClock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Standby Clock
- Remove Ads$0.99
- All Clock Styles$0.99
- Pro Version$1.99
AClock
No in-app purchases
