# Binary Clock vs SFClock

The clearest difference is review sentiment: Binary Clock at 100% against SFClock's 33%. Binary Clock also leads on rating (5.0 vs 4.5) and iOS requirement (8.0 vs 17.0). SFClock's advantage is in-app purchases (none vs 1) and update cadence (every 5 months vs every 69 months). On price, ads, monetization model and device support there is nothing between them.

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

Binary Clock holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 100% of Binary Clock's written reviews are positive against 33% of SFClock's.

Binary Clock ships an update every 69 months, SFClock every 5 months. The most recent releases landed on October 8, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Binary Clock | SFClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/binary-clock-analog/id414979143/reviews)** | [4.5 (4 ratings)](https://appshunter.io/ios/app/sfclock/id1627863783/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 69 months | **Every 5 months** |
| Monetization | Free | Free |
| Size | 12 MB | 0 MB |
| Requires iOS | **8.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [BeanOX GmbH](https://appshunter.io/developer/351212203) | [Yafei Dong](https://appshunter.io/developer/1562436731) |

## What reviewers say

### Binary Clock

[App page](https://appshunter.io/ios/app/binary-clock-analog/id414979143)

This app displays the current time in a unique binary format, presented with an analog clock aesthetic. It offers settings to aid readability and can function as a screen saver while devices are charging.

**Highlights:** Analog format binary time display, Readability settings with number display, Screen saver functionality, Unique geek gadget appeal

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee for Developer | $0.99 | one-time |


### SFClock

[App page](https://appshunter.io/ios/app/sfclock/id1627863783)

This utility app displays a flip clock and calendar. It offers customizable clock settings like 12/24 hour format and seconds display. Users can navigate the calendar and choose from various light and dark color themes.

**Highlights:** Flip clock display, Calendar view, 12/24 hour format, Seconds display toggle, Calendar month navigation, Color themes, Light/dark mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Binary Clock free?

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

### Is SFClock free?

SFClock is free to download, with no in-app purchases.

### Which has better reviews, Binary Clock or SFClock?

Binary Clock is rated higher. Binary Clock averages 5.0 out of 5 from 1 ratings, while SFClock averages 4.5 from 4 ratings.

### Do Binary Clock or SFClock have ads?

Neither Binary Clock nor SFClock shows ads.

### Which is updated more often, Binary Clock or SFClock?

Binary Clock ships an update every 69 months, and SFClock every 5 months. Most recently, Binary Clock was updated on October 8, 2026 and SFClock on October 2, 2026.

---

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