# 320 EXPLAINAIR vs Systems Trainer

The clearest difference is in-app purchases: Systems Trainer at none against 320 EXPLAINAIR's 1. 320 EXPLAINAIR's advantage is iOS requirement (14.0.0 vs 17.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 320 EXPLAINAIR sells 1 in-app purchase, starting at $59.99 per year. Systems Trainer asks for nothing beyond the download.

320 EXPLAINAIR ships an update every 11 days, Systems Trainer every 2 weeks. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | 320 EXPLAINAIR | Systems Trainer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.8 (5 ratings)](https://appshunter.io/ios/app/320-explainair/id6738329093/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 weeks |
| Monetization | Subscription | — |
| Size | 87 MB | 1000 MB |
| Requires iOS | **14.0.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ExplainAir](https://appshunter.io/developer/1779040146) | [Patrick Heinrich](https://appshunter.io/developer/1794204930) |

## What reviewers say

### 320 EXPLAINAIR

[App page](https://appshunter.io/ios/app/320-explainair/id6738329093)

Master aircraft procedures with interactive explanations, cockpit videos, and smart visuals. Train anywhere, even offline, to prepare for type ratings or command upgrades. Developed by experienced pilots and instructors for efficient learning.

**Highlights:** Interactive procedure explanations, Cockpit videos, Smart visuals, Offline training capability, Developed by pilots and instructors

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ExplainAir Yearly Plan | $59.99 | per year |


### Systems Trainer

[App page](https://appshunter.io/ios/app/systems-trainer/id6759176885)

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

**In-app purchases:** none


## Frequently asked questions

### Is 320 EXPLAINAIR free?

320 EXPLAINAIR is free to download, with in-app purchases available.

### Is Systems Trainer free?

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

### Do 320 EXPLAINAIR or Systems Trainer have ads?

Neither 320 EXPLAINAIR nor Systems Trainer shows ads.

### Which is updated more often, 320 EXPLAINAIR or Systems Trainer?

320 EXPLAINAIR ships an update every 11 days, and Systems Trainer every 2 weeks. Most recently, 320 EXPLAINAIR was updated on September 14, 2026 and Systems Trainer on September 9, 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.*