# Density vs SwiftRPN

The clearest difference is device support: Density at 2 against SwiftRPN's —. Density also leads on iOS requirement (8.0 vs 16.4). On price and in-app purchases there is nothing between them.

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

## The numbers

| Metric | Density | SwiftRPN |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (8 ratings)](https://appshunter.io/ios/app/density/id458423388/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Every 75 months | — |
| Monetization | Free | — |
| Size | 0 MB | 3 MB |
| Requires iOS | **8.0** | 16.4 |
| Devices | **iPhone, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Lance Henderson](https://appshunter.io/developer/348247919) | [Patrick Gelvin](https://appshunter.io/developer/1573354051) |

## What reviewers say

### Density

[App page](https://appshunter.io/ios/app/density/id458423388)

This app calculates radiographic density variations for industrial radiographers and inspectors. It is designed to assist professionals working with ASME Section V standards in their density calculations.

**Highlights:** Radiographic density calculation, ASME Section V compliance, Industrial radiographer tool, Density variation calculations, Inspector utility

**Features:** macOS Compatibility

**In-app purchases:** none


### SwiftRPN

[App page](https://appshunter.io/ios/app/swiftrpn/id6470951024)

**In-app purchases:** none


## Frequently asked questions

### Is Density free?

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

### Is SwiftRPN free?

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

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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.*