# SkyTest BU/GU Preparation App vs Pilot Mental Math Trainer

The clearest difference is price: Pilot Mental Math Trainer at $3.99 against SkyTest BU/GU Preparation App's $89.99. Pilot Mental Math Trainer also leads on update cadence (monthly vs every 3 months) and device support (3 vs 1). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

SkyTest BU/GU Preparation App costs $89.99 and Pilot Mental Math Trainer $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SkyTest BU/GU Preparation App ships an update every 3 months, Pilot Mental Math Trainer monthly. The most recent releases landed on September 10, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | SkyTest BU/GU Preparation App | Pilot Mental Math Trainer |
| --- | --- | --- |
| Price | $89.99 | **$3.99** |
| Rating | — | **[1.0 (2 ratings)](https://appshunter.io/ios/app/pilot-mental-math-trainer/id1453543435/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 40.0% of reviews | **42.9% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Paid | Paid |
| Size | 426 MB | 9 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Aviation Media & IT GmbH](https://appshunter.io/developer/504134961) | [Thomas Oswald](https://appshunter.io/developer/740516956) |

## What reviewers say

### SkyTest BU/GU Preparation App

[App page](https://appshunter.io/ios/app/skytest-bugu-preparation-app/id775751981)

Prepare for pilot aptitude tests with a comprehensive suite of training modules covering attention, memory, spatial orientation, psychomotor skills, math, logic, physics, technical comprehension, and English. Features include detailed explanations, customizable difficulty levels, performance analysis, and progress tracking to optimize your training outcome.

**Highlights:** 41 training modules, Bilingual (English/German), Interactive demos, Customizable difficulty, Performance analysis, Progress tracking, Training Assistant

**Features:** macOS Compatibility

**In-app purchases:** none


### Pilot Mental Math Trainer

[App page](https://appshunter.io/ios/app/pilot-mental-math-trainer/id1453543435)

This app helps aspiring pilots improve their mental math skills, crucial for exams and flight operations. It offers six training modules and game-like features to enhance calculation speed, accuracy, and confidence.

**Highlights:** 6 Training Modules (Estimation, Fractions, Word Problems, Number Series, Arithmetic, Cube Test), Dynamic question generator, Timed exercises, Highscore tracking, Average response time tracking, Aviation-related word problems

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

**In-app purchases:** none


## Frequently asked questions

### Is SkyTest BU/GU Preparation App free?

SkyTest BU/GU Preparation App costs $89.99, with no in-app purchases.

### Is Pilot Mental Math Trainer free?

Pilot Mental Math Trainer costs $3.99, with no in-app purchases.

### Do SkyTest BU/GU Preparation App or Pilot Mental Math Trainer have ads?

Neither SkyTest BU/GU Preparation App nor Pilot Mental Math Trainer shows ads.

### Which is updated more often, SkyTest BU/GU Preparation App or Pilot Mental Math Trainer?

SkyTest BU/GU Preparation App ships an update every 3 months, and Pilot Mental Math Trainer monthly. Most recently, SkyTest BU/GU Preparation App was updated on September 10, 2026 and Pilot Mental Math Trainer on September 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.*