# ATP Part 135 Test Prep vs iCITATION Type Rating Prep

The clearest difference is price: iCITATION Type Rating Prep at Free against ATP Part 135 Test Prep's $0.99. iCITATION Type Rating Prep also leads on update cadence (every 2 months vs every 5 months). ATP Part 135 Test Prep's advantage is in-app purchases (none vs 10) and chart position (#191 vs unranked). On ads and device support there is nothing between them.

iCITATION Type Rating Prep is free to download; ATP Part 135 Test Prep costs $0.99 up front. iCITATION Type Rating Prep sells 10 one-off in-app purchases. ATP Part 135 Test Prep asks for nothing beyond the download.

ATP Part 135 Test Prep ships an update every 5 months, iCITATION Type Rating Prep every 2 months. The most recent releases landed on October 29, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | ATP Part 135 Test Prep | iCITATION Type Rating Prep |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.1 (8 ratings)](https://appshunter.io/ios/app/icitation-type-rating-prep/id1501101539/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 71.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | **#191** | — |
| Size | 11 MB | 76 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Bravo Zulu Apps LLC](https://appshunter.io/developer/1000879252) | [Aircraft Apps LLC](https://appshunter.io/developer/1499571546) |

## What reviewers say

### ATP Part 135 Test Prep

[App page](https://appshunter.io/ios/app/atp-part-135-test-prep/id1378714522)

**Currently charting:** #191 Top Paid · Education (US App Store)

**In-app purchases:** none


### iCITATION Type Rating Prep

[App page](https://appshunter.io/ios/app/icitation-type-rating-prep/id1501101539)

This app provides supplemental study materials for pilots preparing for various aviation exams and recurrent training. It features flashcards, quizzes, and memory item study guides for multiple Citation aircraft models, along with weather and flight planning tools.

**Highlights:** Citation aircraft flashcards, Multiple choice quizzes, Memory item study guides, Aircraft limitations study, Worldwide weather data, Airport distance calculator, Custom flashcard maker

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Citation CJ (CE-525) | $19.99 | one-time |
| Citation CJ1 (CE-525) | $19.99 | one-time |
| Citation CJ2 Type Rating Prep | $19.99 | one-time |
| Citation CJ4 Type Rating Prep | $19.99 | one-time |
| Citation CJ3 Type Rating Prep | $19.99 | one-time |
| Citation XLS+ Type Rating Prep | $19.99 | one-time |
| Citation X (CE-750) | $19.99 | one-time |
| Citation M2 Type Rating Prep | $19.99 | one-time |
| Citation CJ3+ (CE-525B) | $19.99 | one-time |
| Citation II (550/551) | $19.99 | one-time |


## Frequently asked questions

### Is ATP Part 135 Test Prep free?

ATP Part 135 Test Prep costs $0.99, with no in-app purchases.

### Is iCITATION Type Rating Prep free?

iCITATION Type Rating Prep is free to download, with in-app purchases available.

### Do ATP Part 135 Test Prep or iCITATION Type Rating Prep have ads?

Neither ATP Part 135 Test Prep nor iCITATION Type Rating Prep shows ads.

### Which is updated more often, ATP Part 135 Test Prep or iCITATION Type Rating Prep?

ATP Part 135 Test Prep ships an update every 5 months, and iCITATION Type Rating Prep every 2 months. Most recently, ATP Part 135 Test Prep was updated on October 29, 2026 and iCITATION Type Rating Prep on November 7, 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.*