# FAA IA Knowledge Test Prep vs Turn Radius Calculator

The clearest difference is rating: Turn Radius Calculator at 5.0 against FAA IA Knowledge Test Prep's 2.0. Turn Radius Calculator also leads on update cadence (every 5 weeks vs every 14 months) and price ($4.99 vs $9.99). FAA IA Knowledge Test Prep's advantage is ratings volume (3 vs 1). On ads, in-app purchases, monetization model and device support there is nothing between them.

FAA IA Knowledge Test Prep costs $9.99 and Turn Radius Calculator $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Turn Radius Calculator holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

FAA IA Knowledge Test Prep ships an update every 14 months, Turn Radius Calculator every 5 weeks. The most recent releases landed on October 17, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | FAA IA Knowledge Test Prep | Turn Radius Calculator |
| --- | --- | --- |
| Price | $9.99 | **$4.99** |
| Rating | [2.0 (3 ratings)](https://appshunter.io/ios/app/faa-ia-knowledge-test-prep/id1446964317/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/turn-radius-calculator/id6480525267/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 11.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 5 weeks** |
| Monetization | Paid | Paid |
| Size | 12 MB | 27 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bravo Zulu Apps LLC](https://appshunter.io/developer/1000879252) | [Flight Training Apps, Inc.](https://appshunter.io/developer/438868778) |

## What reviewers say

### FAA IA Knowledge Test Prep

[App page](https://appshunter.io/ios/app/faa-ia-knowledge-test-prep/id1446964317)

Prepare for your FAA Inspection Authorization Knowledge Test with a comprehensive question bank. This app offers quiz, test, and study modes to track your progress and familiarize you with exam-style questions. It requires no internet connection for offline study.

**Highlights:** Extensive question bank for IA exam, Quiz, Test, and Study modes, Progress tracking with scores and dates, Randomized questions and answers, Offline functionality, Optional sound and vibration feedback

**In-app purchases:** none


### Turn Radius Calculator

[App page](https://appshunter.io/ios/app/turn-radius-calculator/id6480525267)

This app helps pilots calculate turning radius and stall speed based on speed and bank angle. It's useful for evaluating strategies in scenarios like engine failure or tight situations, and for practicing different flight parameters.

**Highlights:** Calculate turning radius, Determine stall speed, Evaluate bank angles and speeds, Calculate maneuvering speed, Assess aircraft weight impact

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

**In-app purchases:** none


## Frequently asked questions

### Is FAA IA Knowledge Test Prep free?

FAA IA Knowledge Test Prep costs $9.99, with no in-app purchases.

### Is Turn Radius Calculator free?

Turn Radius Calculator costs $4.99, with no in-app purchases.

### Which has better reviews, FAA IA Knowledge Test Prep or Turn Radius Calculator?

Turn Radius Calculator is rated higher. FAA IA Knowledge Test Prep averages 2.0 out of 5 from 3 ratings, while Turn Radius Calculator averages 5.0 from 1 ratings.

### Do FAA IA Knowledge Test Prep or Turn Radius Calculator have ads?

Neither FAA IA Knowledge Test Prep nor Turn Radius Calculator shows ads.

### Which is updated more often, FAA IA Knowledge Test Prep or Turn Radius Calculator?

FAA IA Knowledge Test Prep ships an update every 14 months, and Turn Radius Calculator every 5 weeks. Most recently, FAA IA Knowledge Test Prep was updated on October 17, 2026 and Turn Radius Calculator on October 15, 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.*