# Prison Putt vs Entry OS

The clearest difference is update cadence: Entry OS at every 6 days against Prison Putt's every 12 months. 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.

Prison Putt ships an update every 12 months, Entry OS every 6 days. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Prison Putt | Entry OS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 6 days** |
| Size | 69 MB | 22 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Escape Kent Prison Island LTD](https://appshunter.io/developer/1631326163) | [Entry Technologies Ltd](https://appshunter.io/developer/1875781661) |

## What reviewers say

### Prison Putt

[App page](https://appshunter.io/ios/app/prison-putt/id1631326161)

**Features:** macOS Compatibility

**In-app purchases:** none


### Entry OS

[App page](https://appshunter.io/ios/app/entry-os/id6773457452)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Prison Putt free?

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

### Is Entry OS free?

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

### Do Prison Putt or Entry OS have ads?

Neither Prison Putt nor Entry OS shows ads.

### Which is updated more often, Prison Putt or Entry OS?

Prison Putt ships an update every 12 months, and Entry OS every 6 days. Most recently, Prison Putt was updated on September 24, 2026 and Entry OS on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*