# Professional English vs Systems Trainer

The clearest difference is in-app purchases: Systems Trainer at none against Professional English's 5. Professional English's advantage is update cadence (every 2 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Professional English sells 5 in-app purchases, starting at $5.99 per month. Systems Trainer asks for nothing beyond the download.

Professional English 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 | Professional English | Systems Trainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Size | 74 MB | 1000 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Emre BIRINCI](https://appshunter.io/developer/1687658008) | [Patrick Heinrich](https://appshunter.io/developer/1794204930) |

## What reviewers say

### Professional English

[App page](https://appshunter.io/ios/app/professional-englishtermify/id6744872522)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium monthly | $5.99 | per month |
| Pro Yearly | $9.99 | per month |
| Pro Yearly Special Discount | $24.99 | per year |
| Premium Yearly | $29.99 | per year |
| Pro Yearly | $49.99 | 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 Professional English free?

Professional English 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 Professional English or Systems Trainer have ads?

Neither Professional English nor Systems Trainer shows ads.

### Which is updated more often, Professional English or Systems Trainer?

Professional English ships an update every 2 days, and Systems Trainer every 2 weeks. Most recently, Professional English 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.*