# PSTAR vs P

The clearest difference is update cadence: P at every 2 weeks against PSTAR's every 41 months. PSTAR's advantage is iOS requirement (11.0 vs 13.4). On price, ads, in-app purchases and device support there is nothing between them.

PSTAR costs $3.99 and P $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PSTAR ships an update every 41 months, P every 2 weeks. The most recent releases landed on October 10, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | PSTAR | P |
| --- | --- | --- |
| Price | $3.99 | $3.99 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/p-star-study-guide/id6532620287/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 55 MB | 47 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Adnan Sheikh](https://appshunter.io/developer/478871268) | [Bob Knight](https://appshunter.io/developer/1756747559) |

## What reviewers say

### PSTAR

[App page](https://appshunter.io/ios/app/pstar/id1535626371)

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

**In-app purchases:** none


### P

[App page](https://appshunter.io/ios/app/p-star-study-guide/id6532620287)

Prepare for pilot knowledge tests with a comprehensive study guide. It features 185 multiple-choice questions across 14 aviation topics, offering practice, review, and performance summaries to ensure mastery of essential aeronautical concepts.

**Highlights:** 185 multiple-choice questions, 14 aviation topics, Practice categories, Performance summaries, Review incorrect answers, Acronym reference

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

**In-app purchases:** none


## Frequently asked questions

### Is PSTAR free?

PSTAR costs $3.99, with no in-app purchases.

### Is P free?

P costs $3.99, with no in-app purchases.

### Do PSTAR or P have ads?

Neither PSTAR nor P shows ads.

### Which is updated more often, PSTAR or P?

PSTAR ships an update every 41 months, and P every 2 weeks. Most recently, PSTAR was updated on October 10, 2026 and P on September 22, 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.*