# NS Superintendent vs UniSea Maintenance

NS Superintendent and UniSea Maintenance are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

NS Superintendent ships an update every 3 months, UniSea Maintenance every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | NS Superintendent | UniSea Maintenance |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 59 MB | 62 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [ABS Nautical System LLC](https://appshunter.io/developer/1194431728) | [Unisea AS](https://appshunter.io/developer/1458093936) |

## What reviewers say

### NS Superintendent

[App page](https://appshunter.io/ios/app/ns-superintendent/id1320816333)

**Features:** macOS Compatibility

**In-app purchases:** none


### UniSea Maintenance

[App page](https://appshunter.io/ios/app/unisea-maintenance/id6753772115)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is NS Superintendent free?

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

### Is UniSea Maintenance free?

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

### Do NS Superintendent or UniSea Maintenance have ads?

Neither NS Superintendent nor UniSea Maintenance shows ads.

### Which is updated more often, NS Superintendent or UniSea Maintenance?

NS Superintendent ships an update every 3 months, and UniSea Maintenance every 2 months. Most recently, NS Superintendent was updated on October 24, 2026 and UniSea Maintenance on October 25, 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.*