# PRETCAS vs Skooldio

The clearest difference is ads: PRETCAS at none against Skooldio's shown. PRETCAS also leads on update cadence (monthly vs every 3 months) and monetization model (free vs ad-supported). On price, review sentiment, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PRETCAS ships an update monthly, Skooldio every 3 months. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | PRETCAS | Skooldio |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 3 months |
| Monetization | **Free** | Ad-supported |
| Size | 10 MB | 51 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Upbean Company Limited](https://appshunter.io/developer/898138540) | [Skooldio Co., Ltd.](https://appshunter.io/developer/1267234767) |

## What reviewers say

### PRETCAS

[App page](https://appshunter.io/ios/app/pretcas/id1390450475)

This application simulates the TCAS examination, offering practice tests and study materials to help students prepare for their exams. It aims to provide a realistic testing environment and track progress.

**Highlights:** TCAS exam simulation, Practice tests, Study materials, Progress tracking, Realistic testing environment

**Features:** macOS Compatibility

**In-app purchases:** none


### Skooldio

[App page](https://appshunter.io/ios/app/skooldio/id1564398896)

Access a wide range of online courses in data, tech, design, and business. Learn from expert instructors with interactive content and earn certificates upon completion to boost your career.

**Highlights:** Interactive courses with videos and quizzes, Taught by expert instructors, Certificates upon course completion, Content on data science and technology, Courses in design and digital business, Free in-depth content on new workforce skills

**In-app purchases:** none


## Frequently asked questions

### Is PRETCAS free?

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

### Is Skooldio free?

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

### Do PRETCAS or Skooldio have ads?

Skooldio shows ads; PRETCAS does not.

### Which is updated more often, PRETCAS or Skooldio?

PRETCAS ships an update monthly, and Skooldio every 3 months. Most recently, PRETCAS was updated on October 4, 2026 and Skooldio on October 18, 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.*