# Piper Warrior II vs CheckPrep

The clearest difference is price: CheckPrep at Free against Piper Warrior II's $17.99. CheckPrep also leads on rating (5.0 vs 3.0) and update cadence (every 4 days vs every 7 months). Piper Warrior II's advantage is in-app purchases (none vs 8) and iOS requirement (18.6 vs 26.2). On ads and device support there is nothing between them.

CheckPrep is free to download; Piper Warrior II costs $17.99 up front. CheckPrep sells 8 one-off in-app purchases. Piper Warrior II asks for nothing beyond the download.

CheckPrep holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Piper Warrior II ships an update every 7 months, CheckPrep every 4 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Piper Warrior II | CheckPrep |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | [3.0 (1 ratings)](https://appshunter.io/ios/app/piper-warrior-ii/id1014947387/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/checkprep/id6760047738/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 36 MB | 14 MB |
| Requires iOS | **18.6** | 26.2 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Gyronimo, LLC](https://appshunter.io/developer/536898885) | [Robert Rousey](https://appshunter.io/developer/1882505671) |

## What reviewers say

### Piper Warrior II

[App page](https://appshunter.io/ios/app/piper-warrior-ii/id1014947387)

This app calculates mass, balance, and performance data for the Piper PA-28-161 Warrior II aircraft. It helps pilots plan flights quickly by computing takeoff, climb, cruise, and landing distances, as well as stall speeds and center of gravity.

**Highlights:** Mass & Balance calculations, Takeoff and Landing performance, Climb performance data, Cruise altitude optimization, Stall speed computation, Save up to five aircraft settings, Email Mass & Balance summary

**Features:** Vision Pro support

**In-app purchases:** none


### CheckPrep

[App page](https://appshunter.io/ios/app/checkprep/id6760047738)

Prepare for your pilot checkride oral exams with this app. It's structured around the FAA Airman Certification Standards (ACS) and includes searchable regulations, adaptive quizzes, and real-world scenario trainers. Track your progress and know when you're ready.

**Highlights:** FAA ACS structured study, Searchable FAR, AIM, and FAA documents, Offline study and bookmarking, Adaptive flashcards and quizzes, METAR, TAF, and PIREP interpretation, ATC clearance trainers, Progress tracking (0-100%)

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cessna 172SP Content | $4.99 | one-time |
| Cirrus SR20 G7+ Content | $4.99 | one-time |
| Diamond DA42 NG Content | $4.99 | one-time |
| Cirrus SR22 G6 Content | $4.99 | one-time |
| Commercial Multi Add-On Package | $19.99 | one-time |
| Commercial Package | $19.99 | one-time |
| Instrument Package | $19.99 | one-time |
| Private Pilot Package | $19.99 | one-time |


## Frequently asked questions

### Is Piper Warrior II free?

Piper Warrior II costs $17.99, with no in-app purchases.

### Is CheckPrep free?

CheckPrep is free to download, with in-app purchases available.

### Which has better reviews, Piper Warrior II or CheckPrep?

CheckPrep is rated higher. Piper Warrior II averages 3.0 out of 5 from 1 ratings, while CheckPrep averages 5.0 from 4 ratings.

### Do Piper Warrior II or CheckPrep have ads?

Neither Piper Warrior II nor CheckPrep shows ads.

### Which is updated more often, Piper Warrior II or CheckPrep?

Piper Warrior II ships an update every 7 months, and CheckPrep every 4 days. Most recently, Piper Warrior II was updated on November 1, 2026 and CheckPrep on November 5, 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.*