# Binary Clock Time vs MDIS QR Attendance

The clearest difference is ads: MDIS QR Attendance at none against Binary Clock Time's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Binary Clock Time ships an update every 13 months, MDIS QR Attendance every 22 months. The most recent releases landed on September 16, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Binary Clock Time | MDIS QR Attendance |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (34 ratings)](https://appshunter.io/ios/app/binary-clock-time/id417280591/reviews)** | — |
| Number of ratings | **34** | — |
| Positive reviews | 75.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 13 months** | Every 22 months |
| Monetization | Ad-supported | — |
| Size | 4 MB | 20 MB |
| Requires iOS | 16.0 | **15.1** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aaron F Stephenson](https://appshunter.io/developer/391222344) | [MDISHRM](https://appshunter.io/developer/1525715037) |

## What reviewers say

### Binary Clock Time

[App page](https://appshunter.io/ios/app/binary-clock-time/id417280591)

This application displays the current time using a binary format represented by changing shades of blue circles. It includes a tutorial to help users learn how to read binary time quickly.

**Highlights:** Binary time display, Color customization, Built-in tutorial, Watch app support

**Features:** Apple Watch app

**In-app purchases:** none


### MDIS QR Attendance

[App page](https://appshunter.io/ios/app/mdis-qr-attendance/id1623340697)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Binary Clock Time free?

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

### Is MDIS QR Attendance free?

MDIS QR Attendance is free to download, with no in-app purchases.

### Do Binary Clock Time or MDIS QR Attendance have ads?

Binary Clock Time shows ads; MDIS QR Attendance does not.

### Which is updated more often, Binary Clock Time or MDIS QR Attendance?

Binary Clock Time ships an update every 13 months, and MDIS QR Attendance every 22 months. Most recently, Binary Clock Time was updated on September 16, 2026 and MDIS QR Attendance on September 11, 2026.

---

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