# TruAirspeed vs PiCal

TruAirspeed and PiCal are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | TruAirspeed | PiCal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/truairspeed/id855269892/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | — |
| Monetization | Free | — |
| Size | 8 MB | 4 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Petty](https://appshunter.io/developer/603661046) | [Aure Comet](https://appshunter.io/developer/1040392279) |

## What reviewers say

### TruAirspeed

[App page](https://appshunter.io/ios/app/truairspeed/id855269892)

This utility calculates true airspeed, pressure altitude, density altitude, and Mach number. It accounts for compressibility effects and offers unit choices and keypad styles. Users can also input a correction factor for their airspeed indicator.

**Highlights:** True airspeed calculation, Pressure and density altitude calculation, Mach number calculation, Compressibility effects accounted for, Choice of input/result units, Calculator or telephone keypad options, Airspeed indicator correction factor

**Features:** macOS Compatibility

**In-app purchases:** none


### PiCal

[App page](https://appshunter.io/ios/app/pical-pilot-calculator/id1636608626)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TruAirspeed free?

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

### Is PiCal free?

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

### Do TruAirspeed or PiCal have ads?

Neither TruAirspeed nor PiCal 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.*