# Maindeck vs NS Drydock

The clearest difference is update cadence: Maindeck at every 5 weeks against NS Drydock's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Maindeck ships an update every 5 weeks, NS Drydock every 5 months. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Maindeck | NS Drydock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Size | 62 MB | 86 MB |
| Requires iOS | **16.4** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Unisea AS](https://appshunter.io/developer/1458093936) | [ABS Nautical System LLC](https://appshunter.io/developer/1194431728) |

## What reviewers say

### Maindeck

[App page](https://appshunter.io/ios/app/maindeck/id1450106450)

**Features:** macOS Compatibility

**In-app purchases:** none


### NS Drydock

[App page](https://appshunter.io/ios/app/ns-drydock/id1477942922)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Maindeck free?

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

### Is NS Drydock free?

NS Drydock is free to download, with no in-app purchases.

### Do Maindeck or NS Drydock have ads?

Neither Maindeck nor NS Drydock shows ads.

### Which is updated more often, Maindeck or NS Drydock?

Maindeck ships an update every 5 weeks, and NS Drydock every 5 months. Most recently, Maindeck was updated on September 17, 2026 and NS Drydock on September 21, 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.*