# NN Clock vs Custom Digital Clock

The clearest difference is review sentiment: NN Clock at 77% against Custom Digital Clock's 0%. NN Clock also leads on rating (3.7 vs 1.0) and ads (none vs shown). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NN Clock holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: NN Clock has 36 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 77% of NN Clock's written reviews are positive against 0% of Custom Digital Clock's.

NN Clock ships an update every 6 months, Custom Digital Clock every 9 months. The most recent releases landed on July 5, 2026 and July 10, 2026 respectively.

## The numbers

| Metric | NN Clock | Custom Digital Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (36 ratings)](https://appshunter.io/ios/app/nn-clock/id510453998/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/custom-digital-clock/id6476612907/reviews) |
| Number of ratings | **36** | 1 |
| Positive reviews | **76.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 months** | Every 9 months |
| Monetization | **Free** | Ad-supported |
| Size | 7 MB | 29 MB |
| Requires iOS | **6.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AppEesy](https://appshunter.io/developer/495299670) | [tadashi endo](https://appshunter.io/developer/1605441215) |

## What reviewers say

### NN Clock

[App page](https://appshunter.io/ios/app/nn-clock/id510453998)

This application offers a straightforward and powerful alarm clock experience with an elegant analog interface. It simplifies alarm setting and management, allowing for custom wake-up sounds and background changes. The app also integrates with HealthKit for sleep tracking.

**Highlights:** Set alarms by moving alarm hand, Swipe to dismiss alarms, Start timer by turning ring, Customizable background images, HealthKit sleep registration, 8 built-in alarm sounds, Music library integration

**Features:** macOS Compatibility

**In-app purchases:** none


### Custom Digital Clock

[App page](https://appshunter.io/ios/app/custom-digital-clock/id6476612907)

Display a stylish digital clock on your smartphone. Personalize the clock's appearance with custom coloring options to match your style.

**Highlights:** Stylish digital clock display, Customizable coloring, Smartphone integration, Personalized appearance

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NN Clock free?

NN Clock is free to download, with no in-app purchases.

### Is Custom Digital Clock free?

Custom Digital Clock is free to download, with no in-app purchases.

### Which has better reviews, NN Clock or Custom Digital Clock?

NN Clock is rated higher. NN Clock averages 3.7 out of 5 from 36 ratings, while Custom Digital Clock averages 1.0 from 1 ratings.

### Do NN Clock or Custom Digital Clock have ads?

Custom Digital Clock shows ads; NN Clock does not.

### Which is updated more often, NN Clock or Custom Digital Clock?

NN Clock ships an update every 6 months, and Custom Digital Clock every 9 months. Most recently, NN Clock was updated on July 5, 2026 and Custom Digital Clock on July 10, 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.*