# True Binary Clock Free vs Two Links Double Pendulum

The clearest difference is iOS requirement: True Binary Clock Free at 9.0 against Two Links Double Pendulum's 18.2. On price, update cadence, ads and in-app purchases there is nothing between them.

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, Two Links Double Pendulum every 47 months. The most recent releases landed on October 7, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | True Binary Clock Free | Two Links Double Pendulum |
| --- | --- | --- |
| 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 | No |
| Ads | No | No |
| Update frequency | **Every 24 months** | Every 47 months |
| Monetization | Free | — |
| Size | 9 MB | 281 MB |
| Requires iOS | **9.0** | 18.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [C Loep](https://appshunter.io/developer/300802963) | [Eliott Radcliffe](https://appshunter.io/developer/1477487767) |

## 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


### Two Links Double Pendulum

[App page](https://appshunter.io/ios/app/two-links-double-pendulum/id1625794656)

**Features:** macOS Compatibility

**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 Two Links Double Pendulum free?

Two Links Double Pendulum is free to download, with no in-app purchases.

### Do True Binary Clock Free or Two Links Double Pendulum have ads?

Neither True Binary Clock Free nor Two Links Double Pendulum shows ads.

### Which is updated more often, True Binary Clock Free or Two Links Double Pendulum?

True Binary Clock Free ships an update every 24 months, and Two Links Double Pendulum every 47 months. Most recently, True Binary Clock Free was updated on October 7, 2026 and Two Links Double Pendulum on October 6, 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.*