ASAM vs DMIS 211
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ASAM
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.
- 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
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Anti-shipping Activity Messages (ASAM) include the geographic location and the reported descriptive accounts of specific hostile acts against ships, crews and passengers which include incidents of piracy, robbery, hi-jacking and kidnapping. Such reports may be useful for mariners traveling to or through active areas for recognition, prevention and avoidance of potential hostile activity. The ASAM Mobile app allows users to download all ASAMs to their mobile device and search, view, and query them independent of a data connection to increase maritime safety awareness. This app was developed by NGA in collaboration with Booz Allen Hamilton and contributors at GitHub (https://github.com/ngageoint/anti-piracy-iOS-app).
DMIS 211
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DMIS is your all-in-one app designed to connect individuals in crisis to vital public resources quickly and efficiently. Whether you're an individual seeking help, a case worker, or a resource provider, DMIS streamlines the process to ensure everyone gets the support they need. Key features include: * Instant resource applications * In-app chat for real-time communication * A user-friendly dashboard for easy navigation Currently, DMIS is in beta and serving King and Snohomish counties in Washington State. We’re continuously expanding, so check back in the future as we add more regions. If you're interested in using this app in your region, reach out to info@dmis211.com. Download DMIS today and join our community working together for a brighter future!
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | ASAM | DMIS 211 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (15 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 15 — better | — |
| Update frequency | Every 30 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 22 MB |
| Age rating | 4+ | 12+ |
| Developer | National Geospatial-Intelligence Agency | Diversion Management Information System, Incorporated |
In-app purchases
ASAM
No in-app purchases
DMIS 211
No in-app purchases
