# Prison Putt vs National Notes

The clearest difference is update cadence: National Notes at every 2 months against Prison Putt's every 12 months. Prison Putt's advantage is iOS requirement (12.0 vs 15.0). 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.

Prison Putt ships an update every 12 months, National Notes every 2 months. The most recent releases landed on October 2, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Prison Putt | National Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/national-notes/id6449088238/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 69 MB | 308 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Escape Kent Prison Island LTD](https://appshunter.io/developer/1631326163) | [Holosphere](https://appshunter.io/developer/1635956235) |

## What reviewers say

### Prison Putt

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

**Features:** macOS Compatibility

**In-app purchases:** none


### National Notes

[App page](https://appshunter.io/ios/app/national-notes/id6449088238)

Explore augmented reality experiences tied to collectible notes from museums and attractions. Discover hidden security features like watermarks and microtext using your device.

**Highlights:** Augmented reality experiences, Discover security features, View serial numbers, Identify watermarks, Reveal microtext, UV ink detection

**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 National Notes free?

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

### Do Prison Putt or National Notes have ads?

Neither Prison Putt nor National Notes shows ads.

### Which is updated more often, Prison Putt or National Notes?

Prison Putt ships an update every 12 months, and National Notes every 2 months. Most recently, Prison Putt was updated on October 2, 2026 and National Notes on October 6, 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.*