# ICAO Reader vs Marine Docker

The clearest difference is iOS requirement: Marine Docker at 13.4 against ICAO Reader's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ICAO Reader ships an update every 5 months, Marine Docker every 4 months. The most recent releases landed on September 12, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ICAO Reader | Marine Docker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Size | 24 MB | 61 MB |
| Requires iOS | 17.6 | **13.4** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Scytales AB](https://appshunter.io/developer/1526508105) | [Kontis d.o.o.](https://appshunter.io/developer/1745258669) |

## What reviewers say

### ICAO Reader

[App page](https://appshunter.io/ios/app/icao-reader/id1566196586)

**In-app purchases:** none


### Marine Docker

[App page](https://appshunter.io/ios/app/marine-docker/id6502378616)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ICAO Reader free?

ICAO Reader is free to download, with no in-app purchases.

### Is Marine Docker free?

Marine Docker is free to download, with no in-app purchases.

### Do ICAO Reader or Marine Docker have ads?

Neither ICAO Reader nor Marine Docker shows ads.

### Which is updated more often, ICAO Reader or Marine Docker?

ICAO Reader ships an update every 5 months, and Marine Docker every 4 months. Most recently, ICAO Reader was updated on September 12, 2026 and Marine Docker on September 10, 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.*