# Bootstheorie.ch Kat. A/D vs IALA Marks

The clearest difference is price: IALA Marks at $5.99 against Bootstheorie.ch Kat. A/D's $19.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Bootstheorie.ch Kat. A/D costs $19.99 and IALA Marks $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bootstheorie.ch Kat. A/D ships an update every 7 months, IALA Marks every 6 months. The most recent releases landed on October 16, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Bootstheorie.ch Kat. A/D | IALA Marks |
| --- | --- | --- |
| Price | $19.99 | **$5.99** |
| Rating | **[2.0 (1 ratings)](https://appshunter.io/ios/app/bootstheoriech-kat-ad/id732221427/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 6 months** |
| Monetization | Paid | — |
| Size | 92 MB | 25 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gehri Bootsschule und Informatik](https://appshunter.io/developer/710472704) | [Sergio Guaita](https://appshunter.io/developer/634084147) |

## What reviewers say

### Bootstheorie.ch Kat. A/D

[App page](https://appshunter.io/ios/app/bootstheoriech-kat-ad/id732221427)

Prepare for your Swiss motorboat and sailing license exams with comprehensive study materials. Access over 540 up-to-date questions, detailed explanations with visuals, and practice exams. Study offline and track your progress with this proven trainer.

**Highlights:** Over 540 current exam questions, Detailed explanations with photos/illustrations, Practice exam mode, Save difficult questions for review, Progress statistics, Offline access, Live updates for questions

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

**In-app purchases:** none


### IALA Marks

[App page](https://appshunter.io/ios/app/iala-marks/id6738844822)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bootstheorie.ch Kat. A/D free?

Bootstheorie.ch Kat. A/D costs $19.99, with no in-app purchases.

### Is IALA Marks free?

IALA Marks costs $5.99, with no in-app purchases.

### Do Bootstheorie.ch Kat. A/D or IALA Marks have ads?

Neither Bootstheorie.ch Kat. A/D nor IALA Marks shows ads.

### Which is updated more often, Bootstheorie.ch Kat. A/D or IALA Marks?

Bootstheorie.ch Kat. A/D ships an update every 7 months, and IALA Marks every 6 months. Most recently, Bootstheorie.ch Kat. A/D was updated on October 16, 2026 and IALA Marks on October 9, 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.*