# Binary Clock vs Protractor, Level

The clearest difference is in-app purchases: Binary Clock at none against Protractor, Level's 1. Protractor, Level's advantage is update cadence (fortnightly vs every 12 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Binary Clock ships an update every 12 months, Protractor, Level fortnightly. Both last shipped on September 30, 2026.

## The numbers

| Metric | Binary Clock | Protractor, Level |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Fortnightly** |
| Size | 0 MB | 2 MB |
| Requires iOS | 17.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Sayan Goswami](https://appshunter.io/developer/1724985919) | [Streamlined Studios](https://appshunter.io/developer/1802378603) |

## What reviewers say

### Binary Clock

[App page](https://appshunter.io/ios/app/binary-clock-view-time-in-bcd/id6475730187)

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

**In-app purchases:** none


### Protractor, Level

[App page](https://appshunter.io/ios/app/protractor-level-notch/id6795315730)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notch Pro | $2.99 | one-time |


## Frequently asked questions

### Is Binary Clock free?

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

### Is Protractor, Level free?

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

### Do Binary Clock or Protractor, Level have ads?

Neither Binary Clock nor Protractor, Level shows ads.

### Which is updated more often, Binary Clock or Protractor, Level?

Binary Clock ships an update every 12 months, and Protractor, Level fortnightly. Most recently, Binary Clock was updated on September 30, 2026 and Protractor, Level on September 30, 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.*