Big binary clock vs Guard Ninja
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Big binary clock
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.
- Binary time display
- Round LED option
- Square LED option
- Geek mode
- Customizable colors
- Adjustable brightness
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Big Binary clock is a engaging innovation that does exactly what you'd expect a Binary Clock to do - it tells the time in Binary format. Options: -Round LED's -Square LED's -Geek mode -Show time (on / off) -Auto lock (on / off) -time format (12 / 24 ) -All colors (swipe right, left for change colors) -Brightness (swipe up, down for change brightness) -Tap for hide help numbers
Guard Ninja
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.
- 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
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Meet Guard Ninja - the guard of your phone! You don't know how to secure your phone? With this app you can leave your phone alone. Nobody will touch it without launching an alarm. Sleeping in a train or on the airport without anxiety that someone will rob you won’t be a problem. Guard Ninja will warn you in every situation like that. Increase phone security in a simple way! Not only your phone, but also other things nearby can be protected with Guard Ninja app. Simply, put your guarded phone for example into your suitcase. Or lay it down on your wallet or laptop. If someone will try to take your things, alarm will turn on. And you can react quickly. How the app works? You can create your own, customizable alarm. Use different alarms for specific situations. Creating an alarm includes a few elements: Decide what will be your alarm behavior. You can turn on the sound, light or vibration. Behaviors can be mixed, depends on you. Set sensitivity for your alarm. Adjust sensitivity of phone movement which will activate the alarm. Set timers to arm and disarm your alarm. You will have some time to put the phone in a place where you suspect it can be touched and then to turn the alarm off before it will launch. Create your unique password to disarm the alarm. Your alarm list is always visible on home screen. In every moment one of them can be activated.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Big binary clock | Guard Ninja |
|---|---|---|
| Price | $0.99 | $0.95 — better |
| Rating | 4.6 (5 ratings) — better | 4.5 (46 ratings) |
| Positive reviews | 50.0% of reviews — better | 42.9% of reviews |
| Number of ratings | 5 | 46 — better |
| Update frequency | Every 13 months | Every 3 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.4 — better | 18.0 |
| Further details — not scored | ||
| Size | 2 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Alexander Rutkowskij | Jan Slusarz |
Customer experience
Big binary clock
Guard Ninja
In-app purchases
Big binary clock
No in-app purchases
Guard Ninja
No in-app purchases
