# HSI + ILS Trainer vs Readback

The clearest difference is price: Readback at Free against HSI + ILS Trainer's $9.99. Readback also leads on update cadence (monthly vs every 3 months) and iOS requirement (15.0 vs 18.6). HSI + ILS Trainer's advantage is rating (5.0 vs 1.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

Readback 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 holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

HSI + ILS Trainer ships an update every 3 months, Readback monthly. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HSI + ILS Trainer | Readback |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hsi-plus-ils-trainer-ifr-pilot/id847496712/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/readback/id6751527692/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Paid | — |
| Size | 151 MB | 51 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Flygo-Aviation Ltd](https://appshunter.io/developer/550770776) | [Dinnova AG](https://appshunter.io/developer/1557907125) |

## 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


### Readback

[App page](https://appshunter.io/ios/app/readback/id6751527692)

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

**In-app purchases:** none


## Frequently asked questions

### Is HSI + ILS Trainer free?

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

### Is Readback free?

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

### Which has better reviews, HSI + ILS Trainer or Readback?

HSI + ILS Trainer is rated higher. HSI + ILS Trainer averages 5.0 out of 5 from 1 ratings, while Readback averages 1.0 from 1 ratings.

### Do HSI + ILS Trainer or Readback have ads?

Neither HSI + ILS Trainer nor Readback shows ads.

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

HSI + ILS Trainer ships an update every 3 months, and Readback monthly. Most recently, HSI + ILS Trainer was updated on October 9, 2026 and Readback on October 24, 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.*