# AeroPhrase vs Systems Trainer

The clearest difference is in-app purchases: Systems Trainer at none against AeroPhrase's 2. AeroPhrase's advantage is update cadence (every 2 days vs every 2 weeks) and iOS requirement (15.1 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. AeroPhrase sells 2 in-app purchases, starting at $9.99 per month. Systems Trainer asks for nothing beyond the download.

AeroPhrase ships an update every 2 days, Systems Trainer every 2 weeks. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | AeroPhrase | Systems Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Size | 51 MB | 1000 MB |
| Requires iOS | **15.1** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [AeroPhrase Ltd](https://appshunter.io/developer/1831603807) | [Patrick Heinrich](https://appshunter.io/developer/1794204930) |

## What reviewers say

### AeroPhrase

[App page](https://appshunter.io/ios/app/aerophrase/id6749650740)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AeroPhrase Pro Monthly | $9.99 | per month |
| AeroPhrase Pro Yearly | $99.99 | 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 AeroPhrase free?

AeroPhrase 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 AeroPhrase or Systems Trainer have ads?

Neither AeroPhrase nor Systems Trainer shows ads.

### Which is updated more often, AeroPhrase or Systems Trainer?

AeroPhrase ships an update every 2 days, and Systems Trainer every 2 weeks. Most recently, AeroPhrase was updated on October 30, 2026 and Systems Trainer on November 5, 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.*