# Donna vs ARRI ECS

The clearest difference is update cadence: Donna at every 2 months against ARRI ECS's every 14 months. Donna also leads on iOS requirement (8.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Donna ships an update every 2 months, ARRI ECS every 14 months. The most recent releases landed on October 15, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Donna | ARRI ECS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (10 ratings)](https://appshunter.io/ios/app/donna/id938319301/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 70.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 14 months |
| Monetization | Free | — |
| Size | 59 MB | 23 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kristopher Prygrocki](https://appshunter.io/developer/824447689) | [ARRI Group](https://appshunter.io/developer/733009342) |

## What reviewers say

### Donna

[App page](https://appshunter.io/ios/app/donna/id938319301)

This app serves as a pocket-sized assistant for users of RED cameras, enabling them to learn, practice, and reference the DSMC/DSMC2 menu structure. It helps avoid on-camera menu surfing and provides insights from industry professionals.

**Highlights:** Learn RED camera menu structure, Practice menu navigation, Reference DSMC/DSMC2 menus, Avoid on-camera menu surfing, Industry professional insights, Support for specific firmware versions

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

**In-app purchases:** none


### ARRI ECS

[App page](https://appshunter.io/ios/app/arri-ecs/id1555674483)

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

**In-app purchases:** none


## Frequently asked questions

### Is Donna free?

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

### Is ARRI ECS free?

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

### Do Donna or ARRI ECS have ads?

Neither Donna nor ARRI ECS shows ads.

### Which is updated more often, Donna or ARRI ECS?

Donna ships an update every 2 months, and ARRI ECS every 14 months. Most recently, Donna was updated on October 15, 2026 and ARRI ECS on September 19, 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.*