# IMO Signs vs IALA System

The clearest difference is price: IALA System at $0.99 against IMO Signs's $3.99. IALA System also leads on iOS requirement (12.0 vs 17.6). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

IMO Signs costs $3.99 and IALA System $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | IMO Signs | IALA System |
| --- | --- | --- |
| Price | $3.99 | **$0.99** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 95 months | — |
| Monetization | Paid | Paid |
| Size | 194 MB | 84 MB |
| Requires iOS | 17.6 | **12.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sergejs Zeigurs](https://appshunter.io/developer/1439812373) | [Oleksandr Kuzmychov](https://appshunter.io/developer/1623095994) |

## 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


### IALA System

[App page](https://appshunter.io/ios/app/iala-system/id6472812615)

Learn maritime navigation with detailed illustrations and explanations of the IALA System. Features an interactive quiz to test your knowledge and track progress. Ideal for both beginners and experienced mariners seeking to deepen their understanding.

**Highlights:** Detailed IALA System explanations, Vivid illustrations, User-friendly interface, Interactive True/False quiz, Progress tracking, Suitable for all experience levels

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

**In-app purchases:** none


## Frequently asked questions

### Is IMO Signs free?

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

### Is IALA System free?

IALA System costs $0.99, with no in-app purchases.

### Do IMO Signs or IALA System have ads?

Neither IMO Signs nor IALA System 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.*