# True Binary Clock Free vs FerroFluid

The clearest difference is in-app purchases: True Binary Clock Free at none against FerroFluid's 1. True Binary Clock Free also leads on iOS requirement (9.0 vs 17.0). FerroFluid's advantage is update cadence (every 2 months vs every 24 months). On price, ads and device support there is nothing between them.

Both are free to download. FerroFluid sells 1 one-off in-app purchase. True Binary Clock Free asks for nothing beyond the download.

True Binary Clock Free ships an update every 24 months, FerroFluid every 2 months. The most recent releases landed on October 23, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | True Binary Clock Free | FerroFluid |
| --- | --- | --- |
| Price | Free | Free |
| 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** | Yes |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 9 MB | 14 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [C Loep](https://appshunter.io/developer/300802963) | [DAISUKE UEDA](https://appshunter.io/developer/6791084264) |

## 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


### FerroFluid

[App page](https://appshunter.io/ios/app/ferrofluid-magnetic-asmr/id6791084262)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FerroFluid Pro | $3.99 | one-time |


## Frequently asked questions

### Is True Binary Clock Free free?

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

### Is FerroFluid free?

FerroFluid is free to download, with in-app purchases available.

### Do True Binary Clock Free or FerroFluid have ads?

Neither True Binary Clock Free nor FerroFluid shows ads.

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

True Binary Clock Free ships an update every 24 months, and FerroFluid every 2 months. Most recently, True Binary Clock Free was updated on October 23, 2026 and FerroFluid on October 4, 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.*