# IMO Signs vs Marine engineering

The clearest difference is price: IMO Signs at $3.99 against Marine engineering's $6.99. Marine engineering's advantage is iOS requirement (10.0 vs 17.6). On ads, in-app purchases and device support there is nothing between them.

IMO Signs costs $3.99 and Marine engineering $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | IMO Signs | Marine engineering |
| --- | --- | --- |
| Price | **$3.99** | $6.99 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 95 months | — |
| Monetization | Paid | — |
| Size | 194 MB | 12 MB |
| Requires iOS | 17.6 | **10.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sergejs Zeigurs](https://appshunter.io/developer/1439812373) | [Maxim Lukyanenko](https://appshunter.io/developer/1496252741) |

## What reviewers say

### IMO Signs

[App page](https://appshunter.io/ios/app/imo-signs/id1439813671)

This educational app allows users to search for symbols by ID or name. It's designed for studying and reinforcing knowledge in a specific subject area. Enjoy a straightforward learning experience.

**Highlights:** Search by ID, Search by Name, Knowledge rechecking, Study aid

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

**In-app purchases:** none


### Marine engineering

[App page](https://appshunter.io/ios/app/marine-engineering-support/id6468487075)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is IMO Signs free?

IMO Signs costs $3.99, with no in-app purchases.

### Is Marine engineering free?

Marine engineering costs $6.99, with no in-app purchases.

### Do IMO Signs or Marine engineering have ads?

Neither IMO Signs nor Marine engineering shows ads.

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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.*