# O vs Hole Pattern Programming App

The clearest difference is update cadence: Hole Pattern Programming App at every 6 days against O's every 18 months. O's advantage is iOS requirement (12.0 vs 17.6). 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.

O ships an update every 18 months, Hole Pattern Programming App every 6 days. Both last shipped on September 15, 2026.

## The numbers

| Metric | O | Hole Pattern Programming App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 6 days** |
| Size | 16 MB | 22 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [HUTCHINSON](https://appshunter.io/developer/862345826) | [Shekhar Aggarwal](https://appshunter.io/developer/1856886128) |

## What reviewers say

### O

[App page](https://appshunter.io/ios/app/o-ring-info/id1369062925)

**Features:** macOS Compatibility

**In-app purchases:** none


### Hole Pattern Programming App

[App page](https://appshunter.io/ios/app/hole-pattern-programming-app/id6758404032)

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

**In-app purchases:** none


## Frequently asked questions

### Is O free?

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

### Is Hole Pattern Programming App free?

Hole Pattern Programming App is free to download, with no in-app purchases.

### Do O or Hole Pattern Programming App have ads?

Neither O nor Hole Pattern Programming App shows ads.

### Which is updated more often, O or Hole Pattern Programming App?

O ships an update every 18 months, and Hole Pattern Programming App every 6 days. Most recently, O was updated on September 15, 2026 and Hole Pattern Programming App on September 15, 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.*