# Tweakers Developers Summit vs Observation

The clearest difference is update cadence: Observation at every 2 weeks against Tweakers Developers Summit's every 12 months. Tweakers Developers Summit's advantage is iOS requirement (11.0 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.

Tweakers Developers Summit ships an update every 12 months, Observation every 2 weeks. The most recent releases landed on October 15, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Tweakers Developers Summit | Observation |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 weeks** |
| Size | 65 MB | 80 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tweakers.net](https://appshunter.io/developer/373061940) | [Stichting Observation International](https://appshunter.io/developer/1464543487) |

## What reviewers say

### Tweakers Developers Summit

[App page](https://appshunter.io/ios/app/tweakers-developers-summit/id1451209426)

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

**In-app purchases:** none


### Observation

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

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Tweakers Developers Summit free?

Tweakers Developers Summit is free to download, with no in-app purchases.

### Is Observation free?

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

### Do Tweakers Developers Summit or Observation have ads?

Neither Tweakers Developers Summit nor Observation shows ads.

### Which is updated more often, Tweakers Developers Summit or Observation?

Tweakers Developers Summit ships an update every 12 months, and Observation every 2 weeks. Most recently, Tweakers Developers Summit was updated on October 15, 2026 and Observation on October 10, 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.*