# PA28 Performance vs Desk Adjust

The clearest difference is update cadence: PA28 Performance at every 2 months against Desk Adjust's every 39 months. Desk Adjust's advantage is iOS requirement (10.0 vs 16.0). 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.

PA28 Performance ships an update every 2 months, Desk Adjust every 39 months. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | PA28 Performance | Desk Adjust |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (17 ratings)](https://appshunter.io/ios/app/pa28-performance/id1541462246/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 39 months |
| Monetization | Ad-supported | — |
| Size | 12 MB | 4 MB |
| Requires iOS | 16.0 | **10.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [POH Performance L.L.C.](https://appshunter.io/developer/641403529) | [乔乔 张](https://appshunter.io/developer/1480144997) |

## What reviewers say

### PA28 Performance

[App page](https://appshunter.io/ios/app/pa28-performance/id1541462246)

This app calculates essential performance data for Piper PA-28 aircraft flight planning. It covers takeoff, landing, climb, cruise, descent, and emergency procedures, along with an interactive hold calculator and risk analysis tool. Cloud sync ensures your flight plans are accessible across all your devices.

**Highlights:** Flight performance calculations, Takeoff, landing, climb, cruise, descent, Emergency procedures, Interactive hold calculator, Risk analysis tool, Emergency glide distance calculator, Cloud sync across devices

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

**In-app purchases:** none


### Desk Adjust

[App page](https://appshunter.io/ios/app/desk-adjust/id1616650445)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PA28 Performance free?

PA28 Performance is free to download, with no in-app purchases.

### Is Desk Adjust free?

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

### Do PA28 Performance or Desk Adjust have ads?

Neither PA28 Performance nor Desk Adjust shows ads.

### Which is updated more often, PA28 Performance or Desk Adjust?

PA28 Performance ships an update every 2 months, and Desk Adjust every 39 months. Most recently, PA28 Performance was updated on October 6, 2026 and Desk Adjust on October 9, 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.*