# Air Density Calculator vs Cipher

The clearest difference is price: Air Density Calculator at $2.99 against Cipher's $7.99. Cipher's advantage is iOS requirement (14.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

Air Density Calculator costs $2.99 and Cipher $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Air Density Calculator | Cipher |
| --- | --- | --- |
| Price | **$2.99** | $7.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/air-density-calculator/id1421668162/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | — |
| Monetization | Paid | — |
| Size | 1 MB | 2 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nitrio](https://appshunter.io/developer/321121189) | [Ahsan MT](https://appshunter.io/developer/1438930045) |

## What reviewers say

### Air Density Calculator

[App page](https://appshunter.io/ios/app/air-density-calculator/id1421668162)

Instantly calculate air density and atmospheric properties with this offline engineering tool. Features three modes for density, reverse solving, and altitude estimation, with flexible unit support and calculation breakdown.

**Highlights:** Accurate air density calculation, Density, Reverse Solve, and Altitude modes, Flexible unit support, Show calculation steps, Tap to copy results, Calculation history, Offline functionality

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

**In-app purchases:** none


### Cipher

[App page](https://appshunter.io/ios/app/cipher-text/id6473636146)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Air Density Calculator free?

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

### Is Cipher free?

Cipher costs $7.99, with no in-app purchases.

### Do Air Density Calculator or Cipher have ads?

Neither Air Density Calculator nor Cipher shows ads.

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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.*