# NS Docs vs MACK A&I

The clearest difference is update cadence: MACK A&I at every 2 months against NS Docs's every 16 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.

NS Docs ships an update every 16 months, MACK A&I every 2 months. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | NS Docs | MACK A&I |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Every 2 months** |
| Size | 54 MB | 22 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ABS Nautical System LLC](https://appshunter.io/developer/1194431728) | [SOLVERMINDS AND SOLUTIONS](https://appshunter.io/developer/1487027562) |

## What reviewers say

### NS Docs

[App page](https://appshunter.io/ios/app/ns-docs/id1491309568)

**Features:** macOS Compatibility

**In-app purchases:** none


### MACK A&I

[App page](https://appshunter.io/ios/app/mack-a-and-i/id1639091088)

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

**In-app purchases:** none


## Frequently asked questions

### Is NS Docs free?

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

### Is MACK A&I free?

MACK A&I is free to download, with no in-app purchases.

### Do NS Docs or MACK A&I have ads?

Neither NS Docs nor MACK A&I shows ads.

### Which is updated more often, NS Docs or MACK A&I?

NS Docs ships an update every 16 months, and MACK A&I every 2 months. Most recently, NS Docs was updated on September 10, 2026 and MACK A&I on September 17, 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.*