Comparison

Binary O'Clock vs Clock Gallery

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Binary O'Clock

Features
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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 โ€ข Full-screen 24-hour clock with hours, minutes and seconds โ€ข Widgets for the Home Screen, Lock Screen and StandBy โ€ข An Apple Watch app, and complications for your watch face โ€ข Keeps the screen on while the clock is showing โ€ข 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: โ€ข Themes: White, Aviation green, and Dust, with dark dots on sand โ€ข Round LEDs โ€ข Learning mode: shows what each LED is worth and the number in each column โ€ข 12-hour time โ€ข 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.

About

Clock Gallery

Features
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Put a beautiful clock on your desk and focus on your work or study. Clock Gallery turns your iPhone and iPad into a focus clock for your desk: a Pomodoro-style timer (25 minutes of focus, a 5-minute break), a Flowmodoro-style count-up when you'd rather not set a time, and calm sounds like rain and a campfire. In front of you, one of 130+ beautiful clocks. For working from home and for exam prep. FOCUS & BREAK (POMODORO-STYLE) - 25 minutes of focus and a 5-minute break, with a longer 15-minute break every 4 rounds. Times and rounds can be changed - It starts as soon as you turn it on. The clock stays in view; a small ring and time in the corner show what's left and whether you're in focus or on a break - Two soft tones mark each change FOCUS COUNT-UP (FLOWMODORO-STYLE) - Start focusing without setting a time, and take a break whenever you want - Your break is based on how long you focused (for example, 10 minutes after 50 minutes of focus) SOUNDS FOR FOCUS - Rain & Thunder, Rain in the Forest, Jungle and Birds (nature recordings) - Waves, Campfire, and white, pink and brown noise - Plays separately from the clock's own sounds, and keeps playing your last sound when you reopen the app - Choose when to stop: 30 minutes, 1 hour or 2 hours TIMER & COUNTDOWN Show a timer, or a countdown to your exam or deadline, over your favorite clock. YOUR FEATURES, ON ONE SCREEN From "Features On/Off" on the clock picker, turn 17 features, including Focus & Break, Focus Count-Up, Sounds, Timer, Dim at Night, Calendar, Weather and more on or off in a tap. DIM AT NIGHT At night (10 PM to 6 AM to start with), the screen dims so it isn't too bright. You can change the hours and brightness. 130+ BEAUTIFUL CLOCKS Analog, digital, flip clock, neon sign, Nixie tubes, wadokei (Edo-period Japanese clock), sundial, a mechanical watch movement, a day-and-night world map, a kids learning clock and more. Every clock tells its story in "About this clock": the history of the clock it is based on and its design details. Seconds, date, weekday and sound are saved per clock, and Favorites can give you a different clock each day. MASTERPIECES, UKIYO-E AND STORYBOOKS Display over 100 public-domain paintings (Hokusai, Hiroshige, Monet, Vermeer, Van Gogh and more) with the time, and storybook illustrations published before 1930, gently animated (Alice in Wonderland, The Wonderful Wizard of Oz and more). TODAY'S AGENDA AND WEATHER, RIGHT BESIDE THE CLOCK - Your events for the day and "Next event in 12 min" - Works with Google Calendar and Apple (iCloud) calendars - Weather from Apple Weather - Public holidays for your country NOTHING COVERS THE CLOCK No ads and no rating pop-ups over your clock. ON IPHONE AND IPAD Works in portrait and landscape. Stand it up and it becomes a desk clock. Tilt your device and the clock tilts with it. PURCHASE Every clock and all focus features come with a single purchase. No subscription. Buy once and use it on Apple TV, iPhone, iPad and Mac with the same Apple Account. 60 LANGUAGES Weather data provided by Apple Weather.

Screenshots

Binary O'Clock4 screens
Clock Gallery4 screens

Verdict

The call

The clearest difference is update cadence: Clock Gallery at every 5 days against Binary O'Clock's every 3 weeks. Clock Gallery also leads on iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Binary O'Clock sells 1 one-off in-app purchase and Clock Gallery sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Binary O'Clock ships an update every 3 weeks, Clock Gallery every 5 days. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

Scorecard2 real differences ยท 4 level
Binary O'Clock versus Clock Gallery: the parameters behind the verdict, then further details
ParameterBinary O'ClockClock Gallery
PriceFreeFree
Update frequencyEvery 3 weeksEvery 5 days โ€” better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, Mac, Apple TV, Apple Watch โ€” betteriPhone, iPad, Mac, Apple TV
Requires iOS26.017.0 โ€” better
Further details โ€” not scored
Size8 MB192 MB
Age rating4+12+
DeveloperBackslashedTatsuya Kawaguchi

In-app purchases

1 purchases

Binary O'Clock

One-time1
  • Binary O'Clock Pro$2.99
2 purchases

Clock Gallery

One-time2
  • For Facilities & Offices$3.99
  • All Clocks$4.99

Questions

Is Binary O'Clock free?
Binary O'Clock is free to download, with in-app purchases available.
Is Clock Gallery free?
Clock Gallery is free to download, with in-app purchases available.
Do Binary O'Clock or Clock Gallery have ads?
Neither Binary O'Clock nor Clock Gallery shows ads.
Which is updated more often, Binary O'Clock or Clock Gallery?
Binary O'Clock ships an update every 3 weeks, and Clock Gallery every 5 days. Most recently, Binary O'Clock was updated on November 13, 2026 and Clock Gallery on November 10, 2026.

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