# PNO Book vs TabNaviGuitar 2

PNO Book and TabNaviGuitar 2 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PNO Book ships an update weekly, TabNaviGuitar 2 every 2 weeks. The most recent releases landed on October 11, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PNO Book | TabNaviGuitar 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 58 MB | 152 MB |
| Requires iOS | **14.0.0** | 15.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Reginald Watkins](https://appshunter.io/developer/1774881490) | [TETSUYA NISHI](https://appshunter.io/developer/1699781888) |

## What reviewers say

### PNO Book

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

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

**In-app purchases:** none


### TabNaviGuitar 2

[App page](https://appshunter.io/ios/app/tabnaviguitar-2/id6755665887)

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

**In-app purchases:** none


## Frequently asked questions

### Is PNO Book free?

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

### Is TabNaviGuitar 2 free?

TabNaviGuitar 2 is free to download, with no in-app purchases.

### Do PNO Book or TabNaviGuitar 2 have ads?

Neither PNO Book nor TabNaviGuitar 2 shows ads.

### Which is updated more often, PNO Book or TabNaviGuitar 2?

PNO Book ships an update weekly, and TabNaviGuitar 2 every 2 weeks. Most recently, PNO Book was updated on October 11, 2026 and TabNaviGuitar 2 on October 24, 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.*