Comparison

Neptune vs HELMS by ISF

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Neptune

Prepare for USCG COLREG and OOD exams with a comprehensive study system. Features AI tutoring, interactive 3D visuals for lights and shapes, and a complete question bank with intelligent test modes and progress tracking.

Highlights
  • AI-powered tutor for rule explanations
  • Interactive 3D lights and shapes trainer
  • Official USCG question bank
  • Verbatim memory trainer
  • Intelligent exam simulator modes
  • Advanced progress tracking
  • Offline study capability
Features
Read full description

PASS YOUR USCG COLREG & OOD EXAMS WITH CONFIDENCE Neptune: Navigation Rules is the only modern study system that combines the official USCG Question Bank with an AI Tutor, interactive 3D Visual Training, and verbatim cards. Whether you are an Ensign preparing for OOD Phase 1 or a Captain refreshing for a renewal, Neptune replaces heavy textbooks with a smart, pocket-sized coach. NEW: VERBATIm MEMORY TRAINER Level up recall: hide key phrases and type them back to prove you know the rule, not just the letter. Adaptive drills: auto-submit when blanks are filled, with instant feedback and retries to lock in weak spots. Inline citations: jump straight from a missed phrase to the exact rule text. 3D LIGHTS & SHAPES TRAINER Stop memorizing static flashcards. Interactive 3D Models: Rotate vessels to see lights and shapes from any angle. Quiz Mode: Answer questions based on target angle, vessel ID, cardinal direction, and rules of the road. AI-POWERED REFERENCE Don't just memorize the answer—understand the Why. Ask Neptune: Chat with an AI trained specifically on COLREGS and over 500 maritime court cases. Instant Explanations: Get plain-English breakdowns for every question with citations to the rules and cases. Legal Context: Using the court cases see how rules are adjudicated in the real world. COMPLETE USCG QUESTION BANK & BOOK Official Pool: Full access to Inland and International questions. Smart Citation: Every question is linked directly to the specific Rule it tests. Custom Tags: Add your own notes, highlights and rule references. INTELLIGENT TEST MODES Exam Simulator: Mimic the real test by creating presets with precise filters for question number, specific words to be omitted, and rules. Or enable the Smart algorithm to dish you out trouble questions. Study Mode: Filter by "Least Confident" to drill the questions you get wrong. Daily Challenges: Keep your streak alive with quick, timed quizzes to build a daily study habit. ADVANCED PROGRESS TRACKING Confidence Scores: Visualize your mastery of every Rule based on SM-2 Algorithm. Heat Maps: Instantly see if you are weak on "Steering & Sailing" or "Sound Signals." Detailed History: Review past attempts to track your improvement over time. THE MODERN STANDARD Offline Ready: Study in the SCIF or underway—no internet required. Dark Mode: Fully optimized for night watch study sessions. Cloud Sync: Start on your iPhone, finish on your iPad.

About

HELMS by ISF

Features
Read full description

HELMS (Holistic Education and Learning Management System) is a powerful cloud-based Learning Management System designed for the maritime and offshore industry. Built to simplify training, assessment, and certification, HELMS enables organizations to manage crew training efficiently while ensuring compliance with global maritime standards. Key Features: • Training Program Management • Offline Learning via Vessel Installation • Competency Testing & Gap Analysis • Advanced Analytics & Reporting • Online Classroom Integration • Seamless Crew Software/API Integration • Customized Certification & Feedback Systems HELMS empowers organizations to: • Ensure compliance with maritime regulations • Deliver uninterrupted training at sea • Improve crew performance and safety • Standardize training across fleets • Close skill gaps with data-driven insights With 10,000+ learners and 30+ organizations onboard, HELMS is transforming maritime workforce training. Train smarter. Stay compliant. Perform better.

Screenshots

Neptune4 screens
HELMS by ISF4 screens

Verdict

The call

The clearest difference is update cadence: Neptune at every 4 days against HELMS by ISF's every 2 weeks. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Neptune ships an update every 4 days, HELMS by ISF every 2 weeks. The most recent releases landed on October 25, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 9 level
Neptune versus HELMS by ISF: the parameters behind the verdict, then further details
ParameterNeptuneHELMS by ISF
PriceFreeFree
Rating5.0 (17 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings17 — better—
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size96 MB32 MB
Age rating4+4+
DeveloperBrice BrownPushkal Kapoor

In-app purchases

None

Neptune

No in-app purchases

None

HELMS by ISF

No in-app purchases

Questions

Is Neptune free?
Neptune is free to download, with no in-app purchases.
Is HELMS by ISF free?
HELMS by ISF is free to download, with no in-app purchases.
Do Neptune or HELMS by ISF have ads?
Neither Neptune nor HELMS by ISF shows ads.
Which is updated more often, Neptune or HELMS by ISF?
Neptune ships an update every 4 days, and HELMS by ISF every 2 weeks. Most recently, Neptune was updated on October 25, 2026 and HELMS by ISF on October 7, 2026.

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