# ClockZ | Clock Display + Alarm vs Standby Clock

The clearest difference is ads: ClockZ | Clock Display + Alarm at none against Standby Clock's shown. ClockZ | Clock Display + Alarm also leads on ratings volume (5.5K vs 712). Standby Clock's advantage is review sentiment (61% vs 47%). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. ClockZ | Clock Display + Alarm sells 10 in-app purchases, starting at $2.99 per month and Standby Clock sells 3 one-off in-app purchases. 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 ClockZ | Clock Display + Alarm against 4.4 for Standby Clock. That said, the two scores are not equally well evidenced: ClockZ | Clock Display + Alarm has 5.5K ratings behind it against 712, so its average is the more settled of the two. Written reviews are what separate them: 47% of ClockZ | Clock Display + Alarm's written reviews are positive against 61% of Standby Clock's.

ClockZ | Clock Display + Alarm ships an update every 3 weeks, Standby Clock every 6 weeks. The most recent releases landed on September 24, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | ClockZ | Clock Display + Alarm | Standby Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (5.5K ratings)](https://appshunter.io/ios/app/clockz-clock-display-plus-alarm/id414587395/reviews)** | [4.4 (712 ratings)](https://appshunter.io/ios/app/standby-clock-on-lock-screen/id1466459620/reviews) |
| Number of ratings | **5.5K** | 712 |
| Positive reviews | 47.5% of reviews | **61.2% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 58 MB | 56 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rage Box](https://appshunter.io/developer/360832186) | [云云 唐](https://appshunter.io/developer/1443085254) |

## What reviewers say

### ClockZ | Clock Display + Alarm

[App page](https://appshunter.io/ios/app/clockz-clock-display-plus-alarm/id414587395)

This app provides a customizable digital clock display with alarm, timer, and stopwatch functions. It offers features like photo backgrounds, automatic unlock, and large, easy-to-read visuals, optimized for nighttime use. Premium options unlock additional themes and battery display.

**Highlights:** Customizable digital clock display, Music alarm, Timer and stopwatch, Home screen widget, Photo and 3D map backgrounds, Automatic unlock, Battery display (premium)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClockZ Premium | $2.99 | per month |
| ClockZ Premium | $29.99 | per year |
| Good App | $0.99 | one-time |
| Tower Backgrounds | $1.99 | one-time |
| Place Backgrounds | $1.99 | one-time |
| Theme | $2.99 | one-time |
| Best App | $2.99 | one-time |
| Remove Ads | $4.99 | one-time |
| Thank You | $4.99 | one-time |
| Never Give Up | $9.99 | one-time |

**What reviewers like**

- 🕰️ Clear, large time display
- 📟 Accurate time keeping
- 🌙 Good for bedside clock use
- 🎨 Customizable colors and styles
- ⏱️ Useful timer and stopwatch features

**What reviewers complain about**

- 💰 Subscription model with limited free features
- 📢 Intrusive ads and pop-ups
- 🕰️ Lack of 12-hour time option
- 🔒 Issues with restoring purchases
- 🔋 Drains battery when left running

**Reported bugs**

- Sudden switch to 24-hour time mode
- Alarms not triggering as expected
- Ads reappearing after paid removal
- Crashes when deleting alarms
- Inconsistent time display when device is locked

**Requested features**

- Option to disable AM/PM indicator
- Ability to move clock position on screen
- Customizable alarm sounds and volume
- Background image/wallpaper support
- Improved timer functionality for tasks


### Standby Clock

[App page](https://appshunter.io/ios/app/standby-clock-on-lock-screen/id1466459620)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| All Clock Styles | $0.99 | one-time |
| Pro Version | $1.99 | one-time |

**What reviewers like**

- 👍 Simple and easy to use
- 🕰️ Customizable clock display
- 💡 Useful night light feature
- 🔍 Clear and accurate time display

**What reviewers complain about**

- 🐛 Vertical time display not preferred
- 🕰️ Lack of additional features (e.g., weather, date)
- 💰 Paid app with limited free features
- 🔋 Short screen time before turning off

**Reported bugs**

- Clock not displaying properly on home screen
- Alarm not working as expected

**Requested features**

- Add horizontal time display option
- Include weather and date information
- Improve screen timeout settings
- Offer more customization options


## Frequently asked questions

### Is ClockZ | Clock Display + Alarm free?

ClockZ | Clock Display + Alarm is free to download, with in-app purchases available.

### Is Standby Clock free?

Standby Clock is free to download, with in-app purchases available.

### Which has better reviews, ClockZ | Clock Display + Alarm or Standby Clock?

ClockZ | Clock Display + Alarm is rated higher. ClockZ | Clock Display + Alarm averages 4.5 out of 5 from 5.5K ratings, while Standby Clock averages 4.4 from 712 ratings.

### Do ClockZ | Clock Display + Alarm or Standby Clock have ads?

Standby Clock shows ads; ClockZ | Clock Display + Alarm does not.

### Which is updated more often, ClockZ | Clock Display + Alarm or Standby Clock?

ClockZ | Clock Display + Alarm ships an update every 3 weeks, and Standby Clock every 6 weeks. Most recently, ClockZ | Clock Display + Alarm was updated on September 24, 2026 and Standby Clock on September 21, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*