# HSI + ILS Trainer vs Wind Measure

The clearest difference is price: Wind Measure at Free against HSI + ILS Trainer's $9.99. Wind Measure also leads on iOS requirement (12.4 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Wind Measure is free to download; HSI + ILS Trainer costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

HSI + ILS Trainer ships an update every 3 months, Wind Measure every 4 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | HSI + ILS Trainer | Wind Measure |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hsi-plus-ils-trainer-ifr-pilot/id847496712/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 4 months |
| Monetization | Paid | — |
| Size | 151 MB | 19 MB |
| Requires iOS | 18.6 | **12.4** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Flygo-Aviation Ltd](https://appshunter.io/developer/550770776) | [TAKUYA HIGUCHI](https://appshunter.io/developer/579952589) |

## What reviewers say

### HSI + ILS Trainer

[App page](https://appshunter.io/ios/app/hsi-plus-ils-trainer-ifr-pilot/id847496712)

Master core radio-navigation skills for instrument flight training. This app offers interactive lessons and practice drills for HSI and ILS interpretation, intercepts, and tracking. It includes a built-in HSI simulator for briefings and classroom use, designed with flight instructors.

**Highlights:** HSI interpretation and course setting, ILS localizer and glideslope tracking, Intercept and correction practice, Interactive lessons for quick learning, IFR drills and scenarios, Built-in HSI simulator

**Features:** Vision Pro support

**In-app purchases:** none


### Wind Measure

[App page](https://appshunter.io/ios/app/wind-measure/id1480975342)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HSI + ILS Trainer free?

HSI + ILS Trainer costs $9.99, with no in-app purchases.

### Is Wind Measure free?

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

### Do HSI + ILS Trainer or Wind Measure have ads?

Neither HSI + ILS Trainer nor Wind Measure shows ads.

### Which is updated more often, HSI + ILS Trainer or Wind Measure?

HSI + ILS Trainer ships an update every 3 months, and Wind Measure every 4 months. Most recently, HSI + ILS Trainer was updated on November 1, 2026 and Wind Measure on November 3, 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.*