# Big binary clock vs Guard Ninja

The clearest difference is update cadence: Guard Ninja at every 3 months against Big binary clock's every 13 months. Guard Ninja also leads on ratings volume (46 vs 5). Big binary clock's advantage is device support (3 vs 1) and iOS requirement (14.4 vs 18.0). On price, rating, review sentiment and ads there is nothing between them.

Big binary clock costs $0.99 and Guard Ninja $0.95 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.6 for Big binary clock against 4.5 for Guard Ninja. That said, the two scores are not equally well evidenced: Guard Ninja has 46 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 50% of Big binary clock's written reviews are positive against 43% of Guard Ninja's.

Big binary clock ships an update every 13 months, Guard Ninja every 3 months. The most recent releases landed on October 15, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Big binary clock | Guard Ninja |
| --- | --- | --- |
| Price | $0.99 | **$0.95** |
| Rating | **[4.6 (5 ratings)](https://appshunter.io/ios/app/big-binary-clock/id572188132/reviews)** | [4.5 (46 ratings)](https://appshunter.io/ios/app/guard-ninja/id1475364676/reviews) |
| Number of ratings | 5 | **46** |
| Positive reviews | **50.0% of reviews** | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 2 MB | 7 MB |
| Requires iOS | **14.4** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Alexander Rutkowskij](https://appshunter.io/developer/518370415) | [Jan Slusarz](https://appshunter.io/developer/1459429277) |

## What reviewers say

### Big binary clock

[App page](https://appshunter.io/ios/app/big-binary-clock/id572188132)

This app displays the current time using binary code. Customize the appearance with different LED shapes, colors, and brightness levels. It offers a unique way to view time for tech enthusiasts.

**Highlights:** Binary time display, Round LED option, Square LED option, Geek mode, Customizable colors, Adjustable brightness

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

**In-app purchases:** none


### Guard Ninja

[App page](https://appshunter.io/ios/app/guard-ninja/id1475364676)

This app acts as a personal security guard for your phone and belongings. It triggers an alarm if someone attempts to move or tamper with your device or items it's placed near, providing customizable sound, light, and vibration alerts.

**Highlights:** Motion-activated alarm, Customizable alarm sounds, light, and vibration, Adjustable sensitivity settings, Password protection to disarm, Timer for arming and disarming, Protect nearby items like wallets and suitcases

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

**In-app purchases:** none


## Frequently asked questions

### Is Big binary clock free?

Big binary clock costs $0.99, with no in-app purchases.

### Is Guard Ninja free?

Guard Ninja costs $0.95, with no in-app purchases.

### Which has better reviews, Big binary clock or Guard Ninja?

Big binary clock is rated higher. Big binary clock averages 4.6 out of 5 from 5 ratings, while Guard Ninja averages 4.5 from 46 ratings.

### Do Big binary clock or Guard Ninja have ads?

Neither Big binary clock nor Guard Ninja shows ads.

### Which is updated more often, Big binary clock or Guard Ninja?

Big binary clock ships an update every 13 months, and Guard Ninja every 3 months. Most recently, Big binary clock was updated on October 15, 2026 and Guard Ninja on October 7, 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.*