# Pixel Density Calculator vs MilliLog

The clearest difference is price: MilliLog at Free against Pixel Density Calculator's $2.99. MilliLog also leads on update cadence (fortnightly vs every 38 months). Pixel Density Calculator's advantage is in-app purchases (none vs 1) and iOS requirement (13 vs 18.5). On ads and device support there is nothing between them.

MilliLog is free to download; Pixel Density Calculator costs $2.99 up front. MilliLog sells 1 one-off in-app purchase. Pixel Density Calculator asks for nothing beyond the download.

Pixel Density Calculator ships an update every 38 months, MilliLog fortnightly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Pixel Density Calculator | MilliLog |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pixel-density-calculator/id6444243922/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 38 months | **Fortnightly** |
| Monetization | Paid | — |
| Size | 3 MB | 12 MB |
| Requires iOS | **13** | 18.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Heng Jia Liang](https://appshunter.io/developer/1532000635) | [Lucas Dima](https://appshunter.io/developer/1752467672) |

## What reviewers say

### Pixel Density Calculator

[App page](https://appshunter.io/ios/app/pixel-density-calculator/id6444243922)

Calculate the pixels per inch (PPI) or dots per inch (DPI) for any display. This tool helps determine screen resolution based on dimensions and pixel count, also calculating screen size, aspect ratio, and megapixels.

**Highlights:** Calculate Pixels Per Inch (PPI), Calculate Dots Per Inch (DPI), Determine screen size, Calculate aspect ratio, Megapixel count calculation, Shape preview

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

**In-app purchases:** none


### MilliLog

[App page](https://appshunter.io/ios/app/millilog/id6761636959)

**Features:** Family Sharing, Vision Pro support, iPhone Duo support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MilliLog Full Version | $3.99 | one-time |


## Frequently asked questions

### Is Pixel Density Calculator free?

Pixel Density Calculator costs $2.99, with no in-app purchases.

### Is MilliLog free?

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

### Do Pixel Density Calculator or MilliLog have ads?

Neither Pixel Density Calculator nor MilliLog shows ads.

### Which is updated more often, Pixel Density Calculator or MilliLog?

Pixel Density Calculator ships an update every 38 months, and MilliLog fortnightly. Most recently, Pixel Density Calculator was updated on October 30, 2026 and MilliLog 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.*