# ATCPrep.com™ (ATSA Test Prep) vs Orthographic Projection

The clearest difference is price: Orthographic Projection at Free against ATCPrep.com™ (ATSA Test Prep)'s $39.99. Orthographic Projection also leads on rating (4.2 vs 2.3) and device support (5 vs 1). ATCPrep.com™ (ATSA Test Prep)'s advantage is update cadence (every 5 months vs every 57 months) and iOS requirement (13.0 vs 15.0). On review sentiment, ratings volume, ads and in-app purchases there is nothing between them.

Orthographic Projection is free to download; ATCPrep.com™ (ATSA Test Prep) costs $39.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Orthographic Projection holds the better App Store score, 4.2 against 2.3. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 0% and 0% positive.

ATCPrep.com™ (ATSA Test Prep) ships an update every 5 months, Orthographic Projection every 57 months. The most recent releases landed on October 6, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | ATCPrep.com™ (ATSA Test Prep) | Orthographic Projection |
| --- | --- | --- |
| Price | $39.99 | **Free** |
| Rating | [2.3 (4 ratings)](https://appshunter.io/ios/app/atcprepcom-atsa-test-prep/id687196266/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/orthographic-projection/id1062526689/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 57 months |
| Monetization | Paid | **Free** |
| Size | 79 MB | 384 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Aviation Media & IT GmbH](https://appshunter.io/developer/504134961) | [Stefan Hajdu](https://appshunter.io/developer/896377670) |

## What reviewers say

### ATCPrep.com™ (ATSA Test Prep)

[App page](https://appshunter.io/ios/app/atcprepcom-atsa-test-prep/id687196266)

Prepare for FAA air traffic controller pre-employment screening with this comprehensive suite. It offers multiple training modules for ATSA and AT-SAT cognitive tests, including collision scenarios, visual relationships, and radar simulations. Supplemental math tests and a training assistant are also included.

**Highlights:** ATSA & AT-SAT cognitive test preparation, Air Traffic Collision Scenarios training, Radar simulation for air traffic control, Visual Relationships and Differences tests, Supplemental Math and Analogy tests, Performance evaluation and adaptive difficulty

**Features:** macOS Compatibility

**In-app purchases:** none


### Orthographic Projection

[App page](https://appshunter.io/ios/app/orthographic-projection/id1062526689)

Master orthographic projection with this interactive educational app. Ideal for technical students and engineers, it offers engaging ways to learn and test your skills in 1st and 3rd angle projections through fun, gamified modes. Build your knowledge and earn stars as you progress.

**Highlights:** Interactive orthographic projection learning, 1st and 3rd Angle Projection modes, Easy and Hard difficulty modes, Spatial orientation improvement, Symbolic drawing creation, 32+ parts for practice

**In-app purchases:** none


## Frequently asked questions

### Is ATCPrep.com™ (ATSA Test Prep) free?

ATCPrep.com™ (ATSA Test Prep) costs $39.99, with no in-app purchases.

### Is Orthographic Projection free?

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

### Which has better reviews, ATCPrep.com™ (ATSA Test Prep) or Orthographic Projection?

Orthographic Projection is rated higher. ATCPrep.com™ (ATSA Test Prep) averages 2.3 out of 5 from 4 ratings, while Orthographic Projection averages 4.2 from 5 ratings.

### Do ATCPrep.com™ (ATSA Test Prep) or Orthographic Projection have ads?

Neither ATCPrep.com™ (ATSA Test Prep) nor Orthographic Projection shows ads.

### Which is updated more often, ATCPrep.com™ (ATSA Test Prep) or Orthographic Projection?

ATCPrep.com™ (ATSA Test Prep) ships an update every 5 months, and Orthographic Projection every 57 months. Most recently, ATCPrep.com™ (ATSA Test Prep) was updated on October 6, 2026 and Orthographic Projection on October 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.*