# Scale vs PNO Book

The clearest difference is update cadence: PNO Book at weekly against Scale's every 5 weeks. PNO Book also leads on iOS requirement (14.0.0 vs 18.6). 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.

Scale ships an update every 5 weeks, PNO Book weekly. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Scale | PNO Book |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Weekly** |
| Size | 46 MB | 58 MB |
| Requires iOS | 18.6 | **14.0.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tomas Fernandes](https://appshunter.io/developer/1785295598) | [Reginald Watkins](https://appshunter.io/developer/1774881490) |

## What reviewers say

### Scale

[App page](https://appshunter.io/ios/app/scale-up/id6739435602)

**Features:** macOS Compatibility

**In-app purchases:** none


### PNO Book

[App page](https://appshunter.io/ios/app/pno-book/id6743553403)

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

**In-app purchases:** none


## Frequently asked questions

### Is Scale free?

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

### Is PNO Book free?

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

### Do Scale or PNO Book have ads?

Neither Scale nor PNO Book shows ads.

### Which is updated more often, Scale or PNO Book?

Scale ships an update every 5 weeks, and PNO Book weekly. Most recently, Scale was updated on September 30, 2026 and PNO Book on October 11, 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.*