DoD Systems Engineering vs Navy App Locker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DoD Systems Engineering
This app serves as a pocket reference for the Department of Defense Systems Engineering Technical Review process. It offers definitions for nearly 250 acronyms, details on Technology Readiness Levels, and in-depth information on review phases and technical processes.
- Acronym lookup (250+ definitions)
- Technology Readiness Level definitions
- Review information by phase
- Phase details (Materiel Solutions Analysis to Operations & Support)
- Technical and technical management processes
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This app provides a handy pocket reference for engineers and logisticians involved in the very complex Department of Defense Systems Engineering Technical Review process. Features include: *Acronym lookup - nearly 250 acronyms defined! *Technology Readiness Level definitions *In-depth review information sorted by phases *In-depth phase information, from Materiel Solutions Analysis through Operations and Support *Comprehensive Information on technical and technical management processes All ThinChip Software apps are now available free of charge.
Navy App Locker
This official U.S. Navy mobile service provides a centralized platform to discover and download apps developed by the Navy. It offers detailed information, screenshots, and direct links to commercial app stores, including training applications that can submit course credits.
- Discover U.S. Navy mobile apps
- Direct download links to app stores
- View app details, screenshots, and links
- Find Navy training apps
- Submit training credits to ETJ
- Search and filter apps by category
- Suggest new apps and provide feedback
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An Official US Navy mobile service, produced by the Navy’s PMW 240 Program The U.S. Navy App Locker mobile app and accompanying website are your trusted source for information and download links to mobile apps developed by the U.S. Navy. Prior to the Navy App Locker, there was no single way to view all mobile applications developed by the U.S. Navy. The Navy App Locker solves this problem, allowing Sailors to view all details and information about Navy apps, while also providing direct download links to commercial app stores. The Navy App Locker interacts seamlessly with Sailors’ personal devices and does not require CAC authentication. The Navy App Locker is also a great place to find apps that offer training on a variety of topics. Many of these apps allow Sailors to submit Navy Training Management and Planning System (NTMPS) course completion credits to their Electronic Training Jacket (ETJ). Features of the Navy App Locker: » Provides users with textual descriptions, screenshots and related links for each app » Provides direct links to Navy-developed apps in commercial app stores » Viewable on smartphones, tablets, laptops and desktops » Offers a search function to locate applications » Capable of filtering through Navy apps by category » Allows users to suggest new Navy apps and provide feedback The Navy App Locker serves as your one-stop shop for all U.S. Navy mobile applications. Download the app today or visit the website at https://www.applocker.navy.mil!
Screenshots
Verdict
The clearest difference is review sentiment: DoD Systems Engineering at 50% against Navy App Locker's 3%. DoD Systems Engineering also leads on rating (3.8 vs 1.9) and update cadence (every 5 months vs every 13 months). Navy App Locker's advantage is ratings volume (161 vs 4) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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.
DoD Systems Engineering holds the better App Store score, 3.8 against 1.9. That said, the two scores are not equally well evidenced: Navy App Locker has 161 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 50% of DoD Systems Engineering's written reviews are positive against 3% of Navy App Locker's.
DoD Systems Engineering ships an update every 5 months, Navy App Locker every 13 months. The most recent releases landed on September 29, 2026 and October 9, 2026 respectively.
| Parameter | DoD Systems Engineering | Navy App Locker |
|---|---|---|
| Price | Free | Free |
| Rating | 3.8 (4 ratings) — better | 1.9 (161 ratings) |
| Positive reviews | 50.0% of reviews — better | 2.8% of reviews |
| Number of ratings | 4 | 161 — better |
| Update frequency | Every 5 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 15 MB |
| Age rating | 4+ | 12+ |
| Developer | Russell Shannon | Program Executive Office for Enterprise Information Systems, Sea Warrior Program |
Customer experience
DoD Systems Engineering
Navy App Locker
In-app purchases
DoD Systems Engineering
No in-app purchases
Navy App Locker
No in-app purchases
Questions
Is DoD Systems Engineering free?
Is Navy App Locker free?
Which has better reviews, DoD Systems Engineering or Navy App Locker?
Do DoD Systems Engineering or Navy App Locker have ads?
Which is updated more often, DoD Systems Engineering or Navy App Locker?
Other comparisons
