# BOATDRIVER Theory cat A/D vs Sailknots

The clearest difference is price: BOATDRIVER Theory cat A/D at Free against Sailknots's $0.99. Sailknots's advantage is update cadence (weekly vs every 12 months) and device support (4 vs 2). On ads, in-app purchases and iOS requirement there is nothing between them.

BOATDRIVER Theory cat A/D is free to download; Sailknots costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BOATDRIVER Theory cat A/D ships an update every 12 months, Sailknots weekly. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | BOATDRIVER Theory cat A/D | Sailknots |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/boatdriver-theory-cat-ad/id1541839207/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | Free | — |
| Size | 0 MB | 61 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Boatdriver GmbH](https://appshunter.io/developer/585634876) | [Octavian Jalba-Verseck](https://appshunter.io/developer/1547070123) |

## What reviewers say

### BOATDRIVER Theory cat A/D

[App page](https://appshunter.io/ios/app/boatdriver-theory-cat-ad/id1541839207)

Prepare for your Swiss boat exam with this comprehensive learning tool. It offers all official exam questions, audiovisual explanations for difficult topics, and effective learning through knowledge control and synchronization. Access content on any device with lifetime access to theory materials.

**Highlights:** Official exam questions, Audiovisual explanations, Cross-device compatibility, Lifetime access to theory, Knowledge control and synchronization, Tagging function for difficult topics

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

**In-app purchases:** none


### Sailknots

[App page](https://appshunter.io/ios/app/sailknots/id1547070121)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BOATDRIVER Theory cat A/D free?

BOATDRIVER Theory cat A/D is free to download, with no in-app purchases.

### Is Sailknots free?

Sailknots costs $0.99, with no in-app purchases.

### Do BOATDRIVER Theory cat A/D or Sailknots have ads?

Neither BOATDRIVER Theory cat A/D nor Sailknots shows ads.

### Which is updated more often, BOATDRIVER Theory cat A/D or Sailknots?

BOATDRIVER Theory cat A/D ships an update every 12 months, and Sailknots weekly. Most recently, BOATDRIVER Theory cat A/D was updated on October 17, 2026 and Sailknots on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*