# Binary-Clock > Binary time display with alarm and countdown timer. (iPhone/iPad app by Wyllys Ingersoll.) - Source: https://appshunter.io/ios/app/binary-clock/id410072771 (this page in markdown: same URL + `.md`) - Developer: [Wyllys Ingersoll](https://appshunter.io/developer/345097811) - Category: Utilities - Price: Free - Rating: 3.70/5 from 3 App Store ratings · 4 written reviews indexed - Age rating: 4+ - Requires: iOS 13.0 · 16 MB - Languages: American English - Released: 2010-12-19 - Data updated: 2026-08-20 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/binary-clock/id410072771/reviews.md ## What is Binary? Display time using LED-type buttons that correspond to binary values for the hours, minutes, and seconds. Educational for learning binary counting. Options: * 24 or 12 hour mode * Alarm Clock * Countdown Timer mode * Optional "beep" sound * Select a variety of colors for the buttons. ## Key features - Binary time display - 24 or 12 hour mode - Alarm clock functionality - Countdown timer - Customizable button colors - Optional sound alerts ## Recent user reviews (4 of 4) All indexed reviews: https://appshunter.io/ios/app/binary-clock/id410072771/reviews.md ### 4/5 — Nice Clock *2023-03-14* Nice BCD clock but I would like to be able to modify the colors to my liking instead of having them change automatically to preset colors. ### 3/5 — Good, but landscape mode on iPad needs to be fixed *2022-03-29* As stated in title. ### 4/5 — Decent clock *2015-06-06* Wish that it had some sort of tutorial about how the binary deal works, but still a pretty cool app!! ### 1/5 — Alarm glitch *2014-03-22* When I try to set the alarm it closes the app and when it turn it on it says "stop alarm" over and over again. Don't buy until they fix this ## Frequently asked questions about Binary ### What is Binary-Clock? Binary-Clock is a utility app that displays the current time using binary code represented by LED-style buttons for hours, minutes, and seconds. It's designed to be educational for learning binary counting. ### What modes does Binary-Clock offer? Binary-Clock supports both 24-hour and 12-hour modes. It also includes an alarm clock function and a countdown timer mode for added utility. ### Can I customize the appearance of Binary-Clock? Yes, you can select a variety of colors for the LED-style buttons to personalize the app's appearance. An optional 'beep' sound is also available. ### What devices is Binary-Clock compatible with? Binary-Clock is available for iPhone, iPad, and iPod devices. It was first released on December 19, 2010, and the latest version is 2024.10.1, updated on March 10, 2024. ### What is the age rating for Binary-Clock? Binary-Clock has an age rating of 4+, making it suitable for a wide range of users, including children learning about binary. ### How often is Binary-Clock updated? The app receives regular updates, with the latest version being 2024.10.1, released on March 10, 2024. This indicates ongoing development and support. ### Does Binary-Clock have ads? No, Binary-Clock is free and does not contain advertisements, providing an uninterrupted user experience. ### What is the user feedback on Binary-Clock? Binary-Clock has a rating of 3.7 stars from 3 ratings. This suggests a generally positive but mixed reception from its current user base. ## Version history (last 5 releases) ### 2024.10.1 — 2024-03-10 Updated to work on modern devices and latest OS. ### 2.11 — 2014-10-10 This app has been updated by Apple to display the Apple Watch app icon. - Updated for iOS8. - Fixed bug causing crash when setting alarm. ### 2.10 — 2013-09-25 Update for iOS7 ### 1.2 — 2011-01-05 - New multi-color background and splash image - Select songs from iPod library to play as alarm. ### 1.1 — 2010-12-22 - Added support for base 10 mode - button indicators can be clicked to toggle the display of their bit values - Added iPad support - Modified layout on Timer view. - Fixed alarm to work in the background and send notification to user. ## Apps similar to Binary | App | Rating | Price | Category | | --- | --- | --- | --- | | [Random Number Generator RNG](https://appshunter.io/ios/app/random-number-generator-rng/id570657392) | 4.7 (3) | $19.99 | Utilities | | [Binary Clock by jhale.dev](https://appshunter.io/ios/app/binary-clock-by-jhaledev/id6448813967) | 4.5 (2) | Free | Utilities | | [ScrollClock Cool design clock](https://appshunter.io/ios/app/scrollclock-cool-design-clock/id623163480) | — | Free | Utilities | | [Binary Geek Clock](https://appshunter.io/ios/app/binary-geek-clock/id297643122) | 4.3 (3) | $0.99 | Utilities | | [CMVAS My Wi-Fi](https://appshunter.io/ios/app/cmvas-my-wi-fi/id6575383926) | — | Free | Utilities | | [Rnd Generator](https://appshunter.io/ios/app/rnd-generator/id1518439037) | — | $0.99 | Utilities | ## More apps by Wyllys Ingersoll - [iPGMail](https://appshunter.io/ios/app/ipgmail/id430780873) - [J-Challenge: Trivia Scores](https://appshunter.io/ios/app/j-challenge-trivia-scores/id1499215878) All apps by Wyllys Ingersoll: https://appshunter.io/developer/345097811 ## Related topics [big binary clock](https://appshunter.io/ios/topics/big-binary-clock) · [binary clock](https://appshunter.io/ios/topics/binary-clock) · [binary clock by logical labs](https://appshunter.io/ios/topics/binary-clock-by-logical-labs) · [beeble](https://appshunter.io/ios/topics/beeble) --- *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 2026-08-20.*