# True Binary Clock Free vs Roman Digital Clock

The clearest difference is price: True Binary Clock Free at Free against Roman Digital Clock's $0.99. True Binary Clock Free also leads on iOS requirement (9.0 vs 18.6). Roman Digital Clock's advantage is chart position (#181 vs unranked) and update cadence (every 11 months vs every 24 months). On ads, in-app purchases and device support there is nothing between them.

True Binary Clock Free is free to download; Roman Digital Clock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

True Binary Clock Free ships an update every 24 months, Roman Digital Clock every 11 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | True Binary Clock Free | Roman Digital Clock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[3.9 (12 ratings)](https://appshunter.io/ios/app/true-binary-clock-free/id328085957/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 78.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 11 months** |
| Monetization | Free | — |
| Best chart rank | — | **#181** |
| Size | 9 MB | 13 MB |
| Requires iOS | **9.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AFKSoft](https://appshunter.io/developer/300802963) | [Anthony Caggiano](https://appshunter.io/developer/828737536) |

## What reviewers say

### True Binary Clock Free

[App page](https://appshunter.io/ios/app/true-binary-clock-free/id328085957)

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.

**Highlights:** True binary clock mode, BCD binary clock mode, Optional digital clock, 12/24 hour time format, Configurable colors, Disable screen lock option

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Roman Digital Clock

[App page](https://appshunter.io/ios/app/roman-digital-clock/id1516166045)

**Currently charting:** #181 Top Paid · Entertainment (US App Store)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is True Binary Clock Free free?

True Binary Clock Free is free to download, with no in-app purchases.

### Is Roman Digital Clock free?

Roman Digital Clock costs $0.99, with no in-app purchases.

### Do True Binary Clock Free or Roman Digital Clock have ads?

Neither True Binary Clock Free nor Roman Digital Clock shows ads.

### Which is updated more often, True Binary Clock Free or Roman Digital Clock?

True Binary Clock Free ships an update every 24 months, and Roman Digital Clock every 11 months. Most recently, True Binary Clock Free was updated on October 13, 2026 and Roman Digital Clock on October 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*