# Binary O'Clock — Tell time like a computer

> Tell time like a computer (iPhone/iPad app by Backslashed.)

- Source: https://appshunter.io/ios/app/binary-oclock/id1166356115 (this page in markdown: same URL + `.md`)
- Developer: [Backslashed](https://appshunter.io/developer/499276703)
- Category: Utilities, Entertainment
- Price: Free (on sale, was $0.99)
- Age rating: 4+
- Requires: iOS 26.0 · 8 MB
- Languages: American English
- Released: 2016-10-19
- Data updated: 2026-10-20

## What is Binary O'Clock?

There are only 10 types of people in this world: those who understand binary and those who don't.

Binary O'Clock is a glowing binary clock for your iPhone, iPad and Apple Watch. Six columns of LEDs show the time as hours, minutes and seconds, ticking away in ones and zeros.

HOW TO READ IT
Each column is one digit of the time: HH MM SS. Read each column from the bottom up. The LEDs are worth 1, 2, 4 and 8, so add up the ones that are lit to get the digit.

For example, a column with the 2 and 4 LEDs lit shows 6.

FEATURES
• Full-screen 24-hour clock with hours, minutes and seconds
• Widgets for the Home Screen, Lock Screen and StandBy
• An Apple Watch app, and complications for your watch face
• Keeps the screen on while the clock is showing
• No ads, no accounts, no data collected

BINARY O'CLOCK PRO
Tap the clock to open Settings, and try any of it first: a live preview shows your clock before you buy. A one-time purchase unlocks, on Apple TV, Mac, iPad, iPhone and Apple Watch alike:
• Themes: White, Aviation green, and Dust, with dark dots on sand
• Round LEDs
• Learning mode: shows what each LED is worth and the number in each column
• 12-hour time
• A speaking clock: touch and hold the clock to hear "14:32 and 20 seconds", then a beep exactly on the second
No subscription. The classic blue clock stays free, widgets and complications included.

Also on Apple TV and Mac.

Perfect on the nightstand in StandBy, on your wrist, or as a daily brain teaser for anyone learning binary.

## Is Binary O'Clock safe?

Not enough ratings yet to assess Binary O'Clock.

## Is Binary O'Clock legit?

Binary O'Clock appears to be a legitimate app. The AppsHunter Legitimacy Score for Binary O'Clock is 90 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 3.0.0 — 2026-10-18

No release notes.

### 2.0.0 — 2026-09-29

Binary Clock 2.0 is rebuilt from the ground up for the latest tvOS.

### 1.0.1 — 2016-10-19

Fixed minor glitch

### 1.0 — 2016-10-19

No release notes.

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## More apps by Backslashed

- [Enigma M3: Naval Cipher](https://appshunter.io/ios/app/enigma-m3-naval-cipher/id6806239062)
- [Enigma I: Army Cipher](https://appshunter.io/ios/app/enigma-i-army-cipher/id6806239085)
- [Enigma M4: U-boat Cipher](https://appshunter.io/ios/app/enigma-m4-u-boat-cipher/id6806239522)

All apps by Backslashed: https://appshunter.io/developer/499276703

## Related topics

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-20.*