PMK vs Scuba Supervisor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PMK
Prepare for and take the Professional Military Knowledge Eligibility Exam (PMK-EE) required for enlisted advancement. This app offers 100 questions across five sections, allowing retakes to achieve an 80% passing score per section and overall. It's designed for Sailors preparing for E4 through E7 paygrades.
- Prepare for PMK-EE exam
- 100 questions across 5 sections
- Retake sections as needed
- Bookmarks progress
- Submit completion certificates
- Tailored to paygrades E4-E7
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The Professional Military Knowledge Eligibility Exam (PMK-EE) app is a convenient way for Sailors to study and take the retired exam as part of the enlisted advancement process for E4 through E7 pay grades. The updated version of PMK-EE consists of 100 questions spread across five sections: Career Information, Leadership & Character, Naval Heritage, Professionalism, and Warfighting & Readiness. Sailors must achieve a passing score of 80 percent or higher on each section in order to pass the PMK-EE. Failure to pass a section will require that section to be retaken. Individuals must also achieve an overall passing score of 80 percent or higher on the PMK-EE for the next higher pay grade to be eligible to take the Navy-Wide Advancement Examination (NWAE) and Rating Knowledge Exams (RKE) for that pay grade. When a Sailor exits the app before completing a section, the app bookmarks that spot. The next time the app is opened, it returns to the bookmarked location, allowing the Sailor to continue with the exam from that point. certificate. KEY FEATURES -- Available anytime, anywhere – no CAC required -- Displays topics and bibliography content from any compatible device -- Presents randomly selected exam questions each time a Sailor is tested on a section -- Permits retaking any section as often as necessary to achieve passing score of 80 percent -- Allows Sailors to submit course completion certificate to Navy Training Management Planning System (NTMPS) via the app RECENT UPDATES Updated Item Banks for E4-E7 assessments: -- New questions -- New publications -- New topics
Scuba Supervisor
This app assists divers in planning and executing dives according to Navy Dive Manual guidelines. It offers features for detailed dive planning, real-time tracking, and digital logbook storage. Educational resources are also included to enhance diver knowledge.
- Advanced dive planning
- Real-time dive tracking
- Digital dive log storage
- Safety notifications
- Educational resources
- Navy Dive Manual compliance
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Enhance Dive Planning and Execution with the Scuba Supervisor App. Designed for divers in the US Navy, Dive Supervisor integrates planning, tracking, and execution functionalities to make your next dive more efficient. Our app follows the rules outlined in the Navy Dive Manual Rev 7A. Key Features: Advanced Dive Planning: Craft detailed dive plans with ease. The interface allows you to incorporate variables like depth, bottom time, and bottle duration, aligning with the Navy Dive Manual's guidelines. Real-Time Dive Tracking: Monitor your dive in real-time. This app provides stats at your fingertips, ensuring you stay informed and safe during your dive. Dive Log Storage: A digital logbook to record and retrieve your dive histories. Analyze your past dives and easily share for logging into DJRS. Safety First Approach: Integrated notifications allow easy track of clean divers (advanced timer only). Educational Resources: Enhance your knowledge with resources and tips derived from the Navy Dive Manual. ** Not an official product of the US Navy. Independently developed from the DOD, US Navy, and US Government **
Screenshots
Verdict
The clearest difference is review sentiment: Scuba Supervisor at 100% against PMK's 22%. Scuba Supervisor also leads on rating (5.0 vs 2.1) and update cadence (fortnightly vs every 8 months). PMK's advantage is ratings volume (217 vs 7). 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.
Scuba Supervisor holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: PMK has 217 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 22% of PMK's written reviews are positive against 100% of Scuba Supervisor's.
PMK ships an update every 8 months, Scuba Supervisor fortnightly. Both last shipped on October 24, 2026.
| Parameter | PMK | Scuba Supervisor |
|---|---|---|
| Price | Free | Free |
| Rating | 2.1 (217 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 21.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 217 — better | 7 |
| Update frequency | Every 8 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 88 MB | 42 MB |
| Age rating | 12+ | 4+ |
| Developer | Program Executive Office for Enterprise Information Systems, Sea Warrior Program | Seung Heon Kim |
Customer experience
PMK
Scuba Supervisor
Bugs and requests
PMK
Reported bugs
27 issues- App crashes and won't reopen
- App freezes on disclaimer window
- Progress lost after app updates
- Certificates are invalid or not recognized
- Cannot email or submit certificates
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- Scores are inaccurate
- Completed courses shown as incomplete
- App erases all data/progress
- Email submission errors
- App crashes after completion
- App won't open after deletion/reinstallation
- Error opening the app
- App freezes and stops working
- Certificate is a .ldk file
- Progress erased after exiting the app
- Mail client error
- Completion error
- App won't let me submit exams
- Does not register completed PMKs
- Deleted completed quizzes
- Cannot go back and view score after deleting app
- App deleted all my completed work
- App updated erased all progress
- App crashed and won't open right
- App updated and erased all my progress
- App updated and wiped out all scores
- App crashed restarted everything
Requested features
8 requests- Allow printing certificate with score
- Fix email submission issues
- Improve certificate validity
- Ensure progress is saved reliably
- Provide correct answers after failing tests
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- Update FLTMPS record automatically
- Clearer instructions on app usage
- Better navigation within the app
Scuba Supervisor
Not enough reviews yet to summarise bugs or requests.
In-app purchases
PMK
No in-app purchases
Scuba Supervisor
No in-app purchases






