# Marine Master Self Test vs Electric Circuits Simulator

The clearest difference is update cadence: Electric Circuits Simulator at every 5 months against Marine Master Self Test's every 112 months. Marine Master Self Test's advantage is price ($3.99 vs $6.99) and iOS requirement (15.1 vs 18.0). On ads, in-app purchases and device support there is nothing between them.

Marine Master Self Test costs $3.99 and Electric Circuits Simulator $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Marine Master Self Test ships an update every 112 months, Electric Circuits Simulator every 5 months. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Marine Master Self Test | Electric Circuits Simulator |
| --- | --- | --- |
| Price | **$3.99** | $6.99 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 112 months | **Every 5 months** |
| Monetization | Paid | — |
| Size | 30 MB | 28 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Femaso Holdings Pty Ltd](https://appshunter.io/developer/1082550083) | [旭 陈](https://appshunter.io/developer/6780413573) |

## What reviewers say

### Marine Master Self Test

[App page](https://appshunter.io/ios/app/marine-master-self-test/id1082550084)

Prepare for maritime exams with this self-testing tool. It uses visual clues to help you identify subjects and determine actions, covering 10 key maritime knowledge categories. Track your progress with scoring for each section.

**Highlights:** Visual clue-based testing, 10 test categories, Progress tracking with scoring, Search facility for cards, AMSA Coxswain/Master exam prep

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

**In-app purchases:** none


### Electric Circuits Simulator

[App page](https://appshunter.io/ios/app/electric-circuits-simulator/id6748567946)

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

**In-app purchases:** none


## Frequently asked questions

### Is Marine Master Self Test free?

Marine Master Self Test costs $3.99, with no in-app purchases.

### Is Electric Circuits Simulator free?

Electric Circuits Simulator costs $6.99, with no in-app purchases.

### Do Marine Master Self Test or Electric Circuits Simulator have ads?

Neither Marine Master Self Test nor Electric Circuits Simulator shows ads.

### Which is updated more often, Marine Master Self Test or Electric Circuits Simulator?

Marine Master Self Test ships an update every 112 months, and Electric Circuits Simulator every 5 months. Most recently, Marine Master Self Test was updated on October 6, 2026 and Electric Circuits Simulator on October 14, 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.*