# T6B Systems & EPs vs ASTB Prep

The clearest difference is price: ASTB Prep at Free against T6B Systems & EPs's $17.99. ASTB Prep also leads on update cadence (fortnightly vs every 13 months) and review sentiment (94% vs 67%). T6B Systems & EPs's advantage is in-app purchases (none vs 2). On ads, device support and iOS requirement there is nothing between them.

ASTB Prep is free to download; T6B Systems & EPs costs $17.99 up front. ASTB Prep sells 2 one-off in-app purchases. T6B Systems & EPs asks for nothing beyond the download.

ASTB Prep holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: ASTB Prep has 441 ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 67% of T6B Systems & EPs's written reviews are positive against 94% of ASTB Prep's.

T6B Systems & EPs ships an update every 13 months, ASTB Prep fortnightly. Both last shipped on October 19, 2026.

## The numbers

| Metric | T6B Systems & EPs | ASTB Prep |
| --- | --- | --- |
| Price | $17.99 | **Free** |
| Rating | [4.6 (10 ratings)](https://appshunter.io/ios/app/t6b-systems-and-eps/id1367501845/reviews) | **[4.9 (441 ratings)](https://appshunter.io/ios/app/astb-prep/id1549216388/reviews)** |
| Number of ratings | 10 | **441** |
| Positive reviews | 66.7% of reviews | **93.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Fortnightly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 43 MB | 815 MB |
| Requires iOS | 17.7 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 9+ |
| Developer | [David Spicer](https://appshunter.io/developer/1367501844) | [Alex Hastings](https://appshunter.io/developer/1549216390) |

## What reviewers say

### T6B Systems & EPs

[App page](https://appshunter.io/ios/app/t6b-systems-and-eps/id1367501845)

This interactive educational tool provides comprehensive training for T-6B Texan II student naval aviators. It features over 2700 flashcards, detailed system briefs, realistic emergency procedure videos, and robust testing capabilities to enhance learning.

**Highlights:** 2700+ flashcards in 20 decks, Traditional and split card study modes, Aircraft system briefs and diagrams, Realistic aircraft start and malfunction videos, Emergency procedure training, Progress tracking quizzes

**Features:** macOS Compatibility

**In-app purchases:** none


### ASTB Prep

[App page](https://appshunter.io/ios/app/astb-prep/id1549216388)

Prepare for naval aviation exams with comprehensive study materials, practice tests, and simulators. Covers all subtests for Navy, Marine Corps, and Coast Guard aviation selection. Features adaptive testing and offline access.

**Highlights:** 73 comprehensive lessons, 140+ flashcard decks, 600+ sample test questions, Unlimited adaptive practice tests, UAV tracking simulator, Terrain identification simulator, Stick and throttle simulators

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Joystick Functionality | Free | one-time |
| Full Access | $39.99 | one-time |

**What reviewers like**

- 🚀 Great tool for ASTB prep
- 👍 Comprehensive study materials
- 🚀 Helpful simulators for PBM
- 🚀 Improved test scores
- 👍 Detailed lessons and practice tests

**What reviewers complain about**

- 🐛 Some math/physics questions have incorrect answers
- 🐛 UAV simulator not fully accurate to real test
- 🐛 Stick and throttle simulator needs improvement

**Reported bugs**

- Mechanical comprehension test has 30 questions, not 20
- Terrain identification section has occasional screen color issues

**Requested features**

- Option to disable timer for terrain identification
- Ability to configure duration of correct answer display
- Add audio for UAV portion to simulate real test experience
- Include emergency scenario training for UAV


## Frequently asked questions

### Is T6B Systems & EPs free?

T6B Systems & EPs costs $17.99, with no in-app purchases.

### Is ASTB Prep free?

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

### Which has better reviews, T6B Systems & EPs or ASTB Prep?

ASTB Prep is rated higher. T6B Systems & EPs averages 4.6 out of 5 from 10 ratings, while ASTB Prep averages 4.9 from 441 ratings.

### Do T6B Systems & EPs or ASTB Prep have ads?

Neither T6B Systems & EPs nor ASTB Prep shows ads.

### Which is updated more often, T6B Systems & EPs or ASTB Prep?

T6B Systems & EPs ships an update every 13 months, and ASTB Prep fortnightly. Most recently, T6B Systems & EPs was updated on October 19, 2026 and ASTB Prep on October 19, 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.*