True Binary Clock Free vs Vivid Board
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
True Binary Clock Free
This app displays time using binary code, offering both true binary and BCD modes. It includes an optional digital clock display and supports 12 or 24-hour formats with customizable colors. It's designed to be educational and visually appealing.
- True binary clock mode
- BCD binary clock mode
- Optional digital clock
- 12/24 hour time format
- Configurable colors
- Disable screen lock option
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Geek or no geek, everybody should own a binary clock, even if it's just for show. This clock gives you the best of both worlds, a binary clock and a digital clock in one, which makes it very easy to learn reading binary clocks. * True binary clock mode * BCD binary clock mode * Optional digital clock * 24 hr (military) time mode * 12 hr (am/pm) time mode * Configurable colors * Option to disable screen lock The clock supports 2 types of binary clocks, true binary in portrait orientation and BCD in landscape. For more information about binary clocks, see: http://en.wikipedia.org/wiki/Binary_clock Note, this is an ad supported lite version of True Binary Clock, if you like it, check out the full version.
Vivid Board
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A vibrant LED cheer banner for concerts and a stylish LED clock for everyday use — all in one app. Vivid Board transforms your phone into a dazzling message board for concerts, sports games, and festivals, then switches to a sleek LED clock when you need it most. 【LED CHEER BANNER】 ▸ Animation Effects · Scroll — Text glides across the screen · Blink — Eye-catching flashing effect · Fade — Smooth fade in and out · Adjustable speed (1–10) ▸ Vivid Colors · White, Yellow, Red, Blue, Green, Orange, Pink, Purple, Cyan, Lime · Rainbow — Auto-cycling color palette ▸ Beautiful Fonts · Bold Gothic (Black Han Sans) — Strong, striking strokes · Rounded (Noto Sans KR) — Soft and friendly · Adjustable font weight ▸ Presets & Your Own Phrases · Popular cheer phrases with one tap · Save up to 5 personal phrases ▸ Landscape Full Screen · Rotate to hide controls — text fills the entire screen ▸ Keep Screen Awake · Screen stays on while cheering 【LED CLOCK】 ▸ 3 Clock Styles · Float — Time flows across the screen with LED effect · Digital — Bold, clear numerals for current time · Analog — Classic clock face with hour and minute hands ▸ Detailed Display Options · 12-hour / 24-hour format · Toggle seconds, date, and calendar individually · Custom clock colors (including Rainbow) ▸ Auto Sleep · Timer — Auto-off after 5, 10, 15, 30, or 60 minutes · Schedule — Turn off at a specific time · None — Stays on indefinitely ▸ Calendar View · Show current month's calendar alongside the clock 【WHO IT'S FOR】 · K-pop concert and fan meet attendees · Sports fans for baseball, soccer, basketball, and more · K-POP event and fan party goers · Anyone needing a message board for weddings, birthdays, or events · Users wanting a desktop LED clock · Anyone needing a soft bedside clock at night 【KEY FEATURES】 · No account required · Works offline — no internet needed · All settings stored locally — nothing transmitted · Fast and lightweight · Korean and English supported Download now and light up both your cheering moments and everyday life!
Screenshots
Verdict
The clearest difference is update cadence: Vivid Board at every 2 weeks against True Binary Clock Free's every 24 months. True Binary Clock Free's advantage is iOS requirement (9.0 vs 15.1). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
True Binary Clock Free ships an update every 24 months, Vivid Board every 2 weeks. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | True Binary Clock Free | Vivid Board |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (12 ratings) — better | — |
| Positive reviews | 78.3% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 24 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 9 MB | 79 MB |
| Age rating | 4+ | 4+ |
| Developer | C Loep | hyejin shin |
In-app purchases
True Binary Clock Free
No in-app purchases
Vivid Board
No in-app purchases
Questions
Is True Binary Clock Free free?
Is Vivid Board free?
Do True Binary Clock Free or Vivid Board have ads?
Which is updated more often, True Binary Clock Free or Vivid Board?
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