# DartStream vs O

The clearest difference is in-app purchases: DartStream at none against O's 1. DartStream also leads on update cadence (every 2 days vs every 5 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. O sells 1 one-off in-app purchase. DartStream asks for nothing beyond the download.

DartStream ships an update every 2 days, O every 5 days. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | DartStream | O |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 5 days |
| Size | 67 MB | 40 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Michael Fueby](https://appshunter.io/developer/1291681574) | [allinone medical UG (haftungsbeschrankt)](https://appshunter.io/developer/1812671425) |

## What reviewers say

### DartStream

[App page](https://appshunter.io/ios/app/dartstream/id6757398341)

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

**In-app purchases:** none


### O

[App page](https://appshunter.io/ios/app/o-speed-strike/id6759161574)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unbegrenzt Spielen | $3.99 | one-time |


## Frequently asked questions

### Is DartStream free?

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

### Is O free?

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

### Do DartStream or O have ads?

Neither DartStream nor O shows ads.

### Which is updated more often, DartStream or O?

DartStream ships an update every 2 days, and O every 5 days. Most recently, DartStream was updated on October 8, 2026 and O on October 17, 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.*