# Dynamic II Control Master vs Systems

The clearest difference is in-app purchases: Dynamic II Control Master at none against Systems's 4. Dynamic II Control Master also leads on device support (3 vs 1) and iOS requirement (13.0 vs 26.0). Systems's advantage is update cadence (every 4 weeks vs every 6 months). On price and ads there is nothing between them.

Both are free to download. Systems sells 4 in-app purchases, starting at $3.99 per 7 days. Dynamic II Control Master asks for nothing beyond the download.

Dynamic II Control Master ships an update every 6 months, Systems every 4 weeks. The most recent releases landed on September 26, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Dynamic II Control Master | Systems |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 4 weeks** |
| Size | 9 MB | 70 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | +4 |
| Developer | [Bruynzeel Storage Systems BV](https://appshunter.io/developer/997254787) | [Adam Kovacs](https://appshunter.io/developer/1814096456) |

## What reviewers say

### Dynamic II Control Master

[App page](https://appshunter.io/ios/app/dynamic-ii-control-master/id1561135292)

**In-app purchases:** none


### Systems

[App page](https://appshunter.io/ios/app/systems-checklists/id6746172413)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Systems Pro Weekly | $3.99 | per 7 days |
| Systems Pro (1 Month) | $4.99 | per month |
| Systems Pro (1 Year) | $19.99 | per year |
| Systems Pro (Lifetime) | $49.99 | one-time |


## Frequently asked questions

### Is Dynamic II Control Master free?

Dynamic II Control Master is free to download, with no in-app purchases.

### Is Systems free?

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

### Do Dynamic II Control Master or Systems have ads?

Neither Dynamic II Control Master nor Systems shows ads.

### Which is updated more often, Dynamic II Control Master or Systems?

Dynamic II Control Master ships an update every 6 months, and Systems every 4 weeks. Most recently, Dynamic II Control Master was updated on September 26, 2026 and Systems on October 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.*