# Pixel Clock vs Novemdecuple Calc

The clearest difference is in-app purchases: Novemdecuple Calc at none against Pixel Clock's 2. Pixel Clock's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Pixel Clock sells 2 one-off in-app purchases. Novemdecuple Calc asks for nothing beyond the download.

Pixel Clock ships an update weekly, Novemdecuple Calc every 2 weeks. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Pixel Clock | Novemdecuple Calc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 100 MB | 36 MB |
| Requires iOS | **15.0** | 15.8.3 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YIMING SHI](https://appshunter.io/developer/1778404172) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### Pixel Clock

[App page](https://appshunter.io/ios/app/pixel-clock-grid/id6737881546)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cyber City 1-day Trial | Free | one-time |
| Cyber City – Unlock Forever | $2.99 | one-time |


### Novemdecuple Calc

[App page](https://appshunter.io/ios/app/novemdecuple-calc/id6742386396)

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

**In-app purchases:** none


## Frequently asked questions

### Is Pixel Clock free?

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

### Is Novemdecuple Calc free?

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

### Do Pixel Clock or Novemdecuple Calc have ads?

Novemdecuple Calc shows ads; Pixel Clock does not.

### Which is updated more often, Pixel Clock or Novemdecuple Calc?

Pixel Clock ships an update weekly, and Novemdecuple Calc every 2 weeks. Most recently, Pixel Clock was updated on October 24, 2026 and Novemdecuple Calc on October 28, 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.*