# Piper PA vs OBAP.

The clearest difference is price: OBAP. at Free against Piper PA's $9.99. OBAP. also leads on update cadence (every 5 days vs every 4 months). Piper PA's advantage is ratings volume (389 vs 1) and chart position (#185 vs unranked). On rating, ads, in-app purchases and monetization model there is nothing between them.

OBAP. is free to download; Piper PA costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

OBAP. holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Piper PA has 389 ratings behind it against 1, so its average is the more settled of the two.

Piper PA ships an update every 4 months, OBAP. every 5 days. The most recent releases landed on November 6, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Piper PA | OBAP. |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.8 (389 ratings)](https://appshunter.io/ios/app/piper-pa-44-training/id844432720/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/obap/id1630556533/reviews)** |
| Number of ratings | **389** | 1 |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Free | Free |
| Best chart rank | **#185** | — |
| Size | 20 MB | 23 MB |
| Requires iOS | **14.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aircraft Training Aids, LLC](https://appshunter.io/developer/692999325) | [Omair Siddiqui](https://appshunter.io/developer/1235862469) |

## What reviewers say

### Piper PA

[App page](https://appshunter.io/ios/app/piper-pa-44-training/id844432720)

**Currently charting:** #185 Top Paid · Education (US App Store)

Study aircraft systems and limitations with interactive diagrams and detailed descriptions. Practice normal and emergency operations, and explore a detailed cockpit illustration. This app serves as a reference for aviation training.

**Highlights:** Interactive system diagrams, Normal and emergency operation practice, Detailed cockpit illustration, POH information organization, System limitations noted

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

**In-app purchases:** none

**What reviewers like**

- 👍 Great for students
- 👍 Good information and visuals
- 👍 Makes systems learning a breeze
- 👍 Well worth the money
- 👍 Fantastic app for Seminole familiarization

**What reviewers complain about**

- 👎 Works poorly on iPhone
- 👎 Extremely basic information
- 👎 Not worth the money
- 👎 Not comprehensive enough
- 👎 Some areas poorly written/shown

**Reported bugs**

- Works very poorly on the iPhone
- Landing gear system is wrong
- Nose gear in wrong position
- Typos and spelling errors (e.g., 'cabin hear', 'string loaded')
- Information on up limit switches for gear system may be incorrect

**Requested features**

- Add G1000 functionality
- Include poster of G1000 and fuel injected models
- Add prop governor system
- Update app with more information and diagrams
- Fix typos and spelling errors


### OBAP.

[App page](https://appshunter.io/ios/app/obap/id1630556533)

This app serves as a guide for an annual conference focused on professional development and community building. It helps attendees reconnect, renew their commitments, and restore in a supportive environment.

**Highlights:** Conference schedule, Networking opportunities, Professional development sessions, Community building, Event information

**In-app purchases:** none


## Frequently asked questions

### Is Piper PA free?

Piper PA costs $9.99, with no in-app purchases.

### Is OBAP. free?

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

### Which has better reviews, Piper PA or OBAP.?

OBAP. is rated higher. Piper PA averages 4.8 out of 5 from 389 ratings, while OBAP. averages 5.0 from 1 ratings.

### Do Piper PA or OBAP. have ads?

Neither Piper PA nor OBAP. shows ads.

### Which is updated more often, Piper PA or OBAP.?

Piper PA ships an update every 4 months, and OBAP. every 5 days. Most recently, Piper PA was updated on November 6, 2026 and OBAP. on November 3, 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.*