# Observation vs DunRock

The clearest difference is update cadence: Observation at every 3 weeks against DunRock's every 4 months. DunRock's advantage is iOS requirement (13.0 vs 15.1). 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.

Observation ships an update every 3 weeks, DunRock every 4 months. The most recent releases landed on September 24, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Observation | DunRock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 80 MB | 183 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Observation International](https://appshunter.io/developer/1464543487) | [Grupo Audio B.V.](https://appshunter.io/developer/1756062544) |

## What reviewers say

### Observation

[App page](https://appshunter.io/ios/app/observation/id6446407612)

**Features:** Vision Pro support

**In-app purchases:** none


### DunRock

[App page](https://appshunter.io/ios/app/dunrock/id6523425312)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Observation free?

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

### Is DunRock free?

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

### Do Observation or DunRock have ads?

Neither Observation nor DunRock shows ads.

### Which is updated more often, Observation or DunRock?

Observation ships an update every 3 weeks, and DunRock every 4 months. Most recently, Observation was updated on September 24, 2026 and DunRock on September 8, 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.*