# Corbac vs dyna

The clearest difference is in-app purchases: Corbac at none against dyna's 1. dyna's advantage is update cadence (every 4 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. dyna sells 1 in-app purchase, starting at $17.99 per month. Corbac asks for nothing beyond the download.

Corbac ships an update monthly, dyna every 4 days. The most recent releases landed on September 24, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Corbac | dyna |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 15 MB | 37 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Frederic Trisson](https://appshunter.io/developer/1706678387) | [Nicolas Nechitch](https://appshunter.io/developer/1894681955) |

## What reviewers say

### Corbac

[App page](https://appshunter.io/ios/app/corbac/id6473516302)

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

**In-app purchases:** none


### dyna

[App page](https://appshunter.io/ios/app/dyna/id6762561357)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 month | $17.99 | per month |


## Frequently asked questions

### Is Corbac free?

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

### Is dyna free?

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

### Do Corbac or dyna have ads?

Neither Corbac nor dyna shows ads.

### Which is updated more often, Corbac or dyna?

Corbac ships an update monthly, and dyna every 4 days. Most recently, Corbac was updated on September 24, 2026 and dyna 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.*