# The Orrery vs N

The clearest difference is update cadence: The Orrery at every 4 days against N's fortnightly. The Orrery also leads on iOS requirement (13.0 vs 17.0). 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.

The Orrery ships an update every 4 days, N fortnightly. The most recent releases landed on October 10, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | The Orrery | N |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Size | 2 MB | 1 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shota Hori](https://appshunter.io/developer/1442007331) | [Zeul Mordasiewicz](https://appshunter.io/developer/1878875793) |

## What reviewers say

### The Orrery

[App page](https://appshunter.io/ios/app/the-orrery/id6769211647)

**Features:** Apple Watch app

**In-app purchases:** none


### N

[App page](https://appshunter.io/ios/app/n-back-math/id6769662439)

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

**In-app purchases:** none


## Frequently asked questions

### Is The Orrery free?

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

### Is N free?

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

### Do The Orrery or N have ads?

Neither The Orrery nor N shows ads.

### Which is updated more often, The Orrery or N?

The Orrery ships an update every 4 days, and N fortnightly. Most recently, The Orrery was updated on October 10, 2026 and N on October 4, 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.*