# 1 / f Clock vs Binary Clock

The clearest difference is update cadence: Binary Clock at daily against 1 / f Clock's every 7 months. 1 / f Clock's advantage is iOS requirement (8.1 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

1 / f Clock ships an update every 7 months, Binary Clock daily. The most recent releases landed on October 7, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | 1 / f Clock | Binary Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Daily** |
| Size | 47 MB | 7 MB |
| Requires iOS | **8.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Y. MOCHIDUKI](https://appshunter.io/developer/556544131) | [Super, Inc.](https://appshunter.io/developer/439129974) |

## What reviewers say

### 1 / f Clock

[App page](https://appshunter.io/ios/app/1-f-clock/id730286100)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


### Binary Clock

[App page](https://appshunter.io/ios/app/binary-clock-standby/id6786876264)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Binary Clock Pro | $2.99 | one-time |


## Frequently asked questions

### Is 1 / f Clock free?

1 / f Clock is free to download, with in-app purchases available.

### Is Binary Clock free?

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

### Do 1 / f Clock or Binary Clock have ads?

Neither 1 / f Clock nor Binary Clock shows ads.

### Which is updated more often, 1 / f Clock or Binary Clock?

1 / f Clock ships an update every 7 months, and Binary Clock daily. Most recently, 1 / f Clock was updated on October 7, 2026 and Binary Clock on September 20, 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.*