# NDASA vs MHS Office

The clearest difference is update cadence: MHS Office at every 4 days against NDASA's every 4 months. MHS Office also leads on iOS requirement (15.6 vs 17.0). 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.

NDASA ships an update every 4 months, MHS Office every 4 days. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | NDASA | MHS Office |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 days** |
| Size | 64 MB | 52 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [National Drug and Alcohol Screening Association](https://appshunter.io/developer/1500796299) | [Bogdan Stryzhevsky](https://appshunter.io/developer/1837008189) |

## What reviewers say

### NDASA

[App page](https://appshunter.io/ios/app/ndasa/id6762011103)

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

**In-app purchases:** none


### MHS Office

[App page](https://appshunter.io/ios/app/mhs-office/id6783328624)

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

**In-app purchases:** none


## Frequently asked questions

### Is NDASA free?

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

### Is MHS Office free?

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

### Do NDASA or MHS Office have ads?

Neither NDASA nor MHS Office shows ads.

### Which is updated more often, NDASA or MHS Office?

NDASA ships an update every 4 months, and MHS Office every 4 days. Most recently, NDASA was updated on October 9, 2026 and MHS Office on October 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.*