# ASAM vs DMIS 211

The clearest difference is update cadence: DMIS 211 at every 2 months against ASAM's every 30 months. DMIS 211 also leads on iOS requirement (12.0 vs 14.0). 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.

ASAM ships an update every 30 months, DMIS 211 every 2 months. The most recent releases landed on October 1, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | ASAM | DMIS 211 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (15 ratings)](https://appshunter.io/ios/app/asam/id935822509/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 7 MB | 22 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [National Geospatial-Intelligence Agency](https://appshunter.io/developer/935822508) | [Diversion Management Information System, Incorporated](https://appshunter.io/developer/1802017441) |

## What reviewers say

### ASAM

[App page](https://appshunter.io/ios/app/asam/id935822509)

Access and search detailed reports on hostile maritime activities like piracy and kidnapping. This app provides critical safety information for mariners, enabling them to recognize, prevent, and avoid potential threats at sea, even without an internet connection.

**Highlights:** Download anti-shipping activity messages, Search and view incident reports, Query maritime activity data, Offline access to reports, Increase maritime safety awareness, View geographic locations of incidents

**Features:** macOS Compatibility

**In-app purchases:** none


### DMIS 211

[App page](https://appshunter.io/ios/app/dmis-211/id6743238383)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ASAM free?

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

### Is DMIS 211 free?

DMIS 211 is free to download, with no in-app purchases.

### Do ASAM or DMIS 211 have ads?

Neither ASAM nor DMIS 211 shows ads.

### Which is updated more often, ASAM or DMIS 211?

ASAM ships an update every 30 months, and DMIS 211 every 2 months. Most recently, ASAM was updated on October 1, 2026 and DMIS 211 on September 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.*