# ARRI ECS vs OktoStream

The clearest difference is update cadence: OktoStream at weekly against ARRI ECS's every 14 months. ARRI ECS's advantage is iOS requirement (15.6 vs 26.0). 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.

ARRI ECS ships an update every 14 months, OktoStream weekly. The most recent releases landed on September 19, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ARRI ECS | OktoStream |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Weekly** |
| Size | 23 MB | 28 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ARRI Group](https://appshunter.io/developer/733009342) | [OKTOTEK TEKNOLOJI ANONIM SIRKETI](https://appshunter.io/developer/1488525183) |

## What reviewers say

### ARRI ECS

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

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

**In-app purchases:** none


### OktoStream

[App page](https://appshunter.io/ios/app/oktostream/id6775540258)

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

**In-app purchases:** none


## Frequently asked questions

### Is ARRI ECS free?

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

### Is OktoStream free?

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

### Do ARRI ECS or OktoStream have ads?

Neither ARRI ECS nor OktoStream shows ads.

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

ARRI ECS ships an update every 14 months, and OktoStream weekly. Most recently, ARRI ECS was updated on September 19, 2026 and OktoStream on October 25, 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.*