# TruAirspeed vs FPDT

The clearest difference is rating: FPDT at 5.0 against TruAirspeed's 4.1. FPDT also leads on iOS requirement (13.2 vs 15.6). On price, ratings volume, ads 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.

FPDT holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 8 and 5 respectively.

## The numbers

| Metric | TruAirspeed | FPDT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (8 ratings)](https://appshunter.io/ios/app/truairspeed/id855269892/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/fpdt/id6464222311/reviews)** |
| Number of ratings | **8** | 5 |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 24 months | — |
| Monetization | Free | Free |
| Size | 8 MB | 5 MB |
| Requires iOS | 15.6 | **13.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [James Petty](https://appshunter.io/developer/603661046) | [Rich Zins](https://appshunter.io/developer/1705644148) |

## 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


### FPDT

[App page](https://appshunter.io/ios/app/fpdt/id6464222311)

This tool allows pilots to log and configure actions taken during combat missions. The logged data, including event name, location, and time, can be exported for debriefing and training. It also offers real-time monitoring with live targeting information.

**Highlights:** Log combat mission actions, Configure action types, Export data to PDF/plaintext, Real-time location monitoring, Live bullseye targeting information

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TruAirspeed free?

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

### Is FPDT free?

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

### Which has better reviews, TruAirspeed or FPDT?

FPDT is rated higher. TruAirspeed averages 4.1 out of 5 from 8 ratings, while FPDT averages 5.0 from 5 ratings.

### Do TruAirspeed or FPDT have ads?

Neither TruAirspeed nor FPDT 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.*