# DA42 TDI vs pAIP Reader

The clearest difference is price: pAIP Reader at Free against DA42 TDI's $38.99. pAIP Reader also leads on device support (3 vs 1). DA42 TDI's advantage is iOS requirement (9.1 vs 18.0). On update cadence, ads and in-app purchases there is nothing between them.

pAIP Reader is free to download; DA42 TDI costs $38.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DA42 TDI ships an update every 4 months, pAIP Reader every 2 months. Both last shipped on October 11, 2026.

## The numbers

| Metric | DA42 TDI | pAIP Reader |
| --- | --- | --- |
| Price | $38.99 | **Free** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Size | 41 MB | 16 MB |
| Requires iOS | **9.1** | 18.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gyronimo, LLC](https://appshunter.io/developer/536898885) | [TAKUYA HIGUCHI](https://appshunter.io/developer/579952589) |

## What reviewers say

### DA42 TDI

[App page](https://appshunter.io/ios/app/da42-tdi/id1046446776)

**Features:** macOS Compatibility

**In-app purchases:** none


### pAIP Reader

[App page](https://appshunter.io/ios/app/paip-reader/id1510277520)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DA42 TDI free?

DA42 TDI costs $38.99, with no in-app purchases.

### Is pAIP Reader free?

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

### Do DA42 TDI or pAIP Reader have ads?

Neither DA42 TDI nor pAIP Reader shows ads.

### Which is updated more often, DA42 TDI or pAIP Reader?

DA42 TDI ships an update every 4 months, and pAIP Reader every 2 months. Most recently, DA42 TDI was updated on October 11, 2026 and pAIP Reader 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.*