Comparison

Saint Nicholas vs Engine Room Simulator

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

Head to head
About

Saint Nicholas

Access comprehensive maritime resources and references to prepare for Marine Deck and Engine officer exams. Offers online and onsite review options, ensuring you stay updated with the latest MARINA exam guides anytime, anywhere.

Highlights
  • Maritime exam resources
  • Marine Deck and Engine officer preparation
  • Online 24/7 review
  • Onsite review options
  • Updated MARINA exam guides
  • Nationwide office locations
Features
Read full description

The most advanced center for maritime review is here! This app gives every student the access to every resources & references possible in order to become a Marine Deck and Engine officer and excel in the industry. The stepping stone to your dream is with us! Saint Nicholas Maritime Review & Coffee House. Never loose an update to MARINA exam guides. ONLINE 24 hours 7 days a week plus ONSITE review Review wherever and whenever Always updated Visit our offices nationwide. MANILA Main 5F W. Deepz Building, 1033 MH Del Pilar St., Ermita 1000, Manila 02 452 - 3557 DAVAO GF Kanto Motors Bldg. Corner Quimpo Blvd. & Mangga St. Brgy. Matina, Davao City 8000 Davao del Sur 0919 605 7245 CEBU - Capitol GF Capitol Centrum Building, N Escario St, Cebu City, 6000 Cebu 032 383 5925 ILOILO is moving to a new location BACOLOD 2F Masinadyahon Bldg., Lizares Avenue, Bacolod, 6100 Negros Occidental 034 445 6046 CEBU Talisay City C-203 South Agora, San Isidro Road, Talisay City, Cebu 032 517 2786 IMUS 3F PRB Building, KM 19 Emilio Aguinaldo Highway, Imus 4103 Cavite 0905 332 2223

About

Engine Room Simulator

This app offers a high-fidelity simulation for marine engineering training. It allows users to practice shipboard engine-room procedures, from safety training to full voyage simulation, with clear guidance and feedback. Ideal for cadets, students, and seafarers to build practical skills anytime, anywhere.

Highlights
  • High-fidelity marine engineering simulation
  • PPE safety training and induction
  • Generator synchronization and startup
  • Full voyage simulation
  • Guided and assessment learning modes
  • Offline practice capability
Features
Read full description

Engine Room Simulator - ERS is a high-fidelity marine engineering training simulator for marine cadets, marine students, seafarers, and seamen who want to practice shipboard engine-room procedures with professional precision - anytime, anywhere, on mobile. Step into a realistic engine room and learn how a ship's machinery comes to life. From PPE safety training to generator synchronization to full voyage simulation, ERS turns complex marine engineering operations into repeatable, hands-on practice and onboard familiarization. MARITIME TRAINING, STEP BY STEP Work through guided engine room training modules with clear procedures, on-screen guidance, and instant feedback. This interactive training simulator builds from the fundamentals to full-plant operation - ideal for maritime education, competency training, and seafarer training. Practice the core shipboard systems: - PPE safety training and engine room safety induction - Emergency diesel generator cold-ship startup - Diesel Generator 1 and 2 starting - Diesel generator synchronization and paralleling - Seawater system and central seawater distribution - Freshwater system and cooling water system (LT/HT) - Lube oil system management - Fuel oil system pretreatment and service - Starting air system compressors and receivers - Boiler and steam plant operation - Marine diesel engine and engine startup training - Secure propulsion and propulsion control FULL VOYAGE SIMULATION Bring it all together in the Voyage Simulation hub - a connected engine room sandbox where shipboard systems and marine auxiliary systems operate at the same time. Perform system alignment training, manage the plant, handle electrical interlocks, and run the vessel like a real watchkeeping marine engineer. SAFETY FIRST, EVERY TIME Shipboard safety is built in. Complete your PPE and safety checks to unlock training modules, then gear up again every time you enter the engine room - just like real shipboard discipline. GUIDED AND ASSESSMENT LEARNING - Guided mode: a step-by-step narrator, on-screen pointers, and input gating help you learn each procedure correctly. - Assessment mode: an operations assessment with scoring and mistake tracking, unlocked once you complete the guided walkthrough. WHY ENGINE ROOM SIMULATOR - Built for marine cadets, marine engineering students, and working seafarers - Realistic P&ID-style shipboard system diagrams with pan and zoom - Authentic engine room operations, alarms, and trainer feedback - Premium, distraction-free full-screen interface - Practice marine engineering offline, on your own schedule - Repeatable drills and simulator practice to build muscle memory before you board Whether you are preparing for sea time, studying as a marine cadet, refreshing watchkeeping skills, or learning how a ship engine works, Engine Room Simulator - ERS is a complete marine simulator and ship systems simulator that gives you a safe, hands-on environment to learn, practice, and master engine room operations. ERS PRO Unlock the full marine engineering training experience, including all system modules and the complete Voyage Simulation, with ERS Pro. A yearly subscription and a one-time lifetime purchase are available. PRO OPTIONS • Pro Yearly: 1 year, auto-renewable subscription • Pro Lifetime: one-time purchase • Pro unlocks unlimited local saves and Pro-only features/components SUBSCRIPTION TERMS • Price is shown in your local currency before purchase • Payment is charged to your Apple ID at confirmation • Yearly Pro renews automatically unless canceled at least 24 hours before the end of the current period • Manage or cancel anytime in Apple ID account settings Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula Privacy Policy: https://electrosim.simlearningtech.com/privacy-policy

Screenshots

Saint Nicholas4 screens
Engine Room Simulator4 screens

Verdict

The call

The clearest difference is in-app purchases: Saint Nicholas at none against Engine Room Simulator's 2. Saint Nicholas also leads on iOS requirement (11.0 vs 16.0). Engine Room Simulator's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads 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. Engine Room Simulator sells 2 in-app purchases, starting at $9.99 per year. Saint Nicholas asks for nothing beyond the download.

UpkeepUpdate frequency

Saint Nicholas ships an update every 6 weeks, Engine Room Simulator every 3 weeks. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
Saint Nicholas versus Engine Room Simulator: the parameters behind the verdict, then further details
ParameterSaint NicholasEngine Room Simulator
PriceFreeFree
Rating—4.8 (4 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—4 — better
Update frequencyEvery 6 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better16.0
Further details — not scored
Size110 MB174 MB
Age rating4+4+
DeveloperJames Nikko HosanaLouie Juera

Customer experience

Saint Nicholas

Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Engine Room Simulator

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Saint Nicholas

No in-app purchases

2 purchases

Engine Room Simulator

Subscriptions1
  • ERS Pro Yearly3 Days trial$9.991 Year
One-time1
  • ERS Pro Lifetime$19.99

Questions

Is Saint Nicholas free?
Saint Nicholas is free to download, with no in-app purchases.
Is Engine Room Simulator free?
Engine Room Simulator is free to download, with in-app purchases available.
Do Saint Nicholas or Engine Room Simulator have ads?
Neither Saint Nicholas nor Engine Room Simulator shows ads.
Which is updated more often, Saint Nicholas or Engine Room Simulator?
Saint Nicholas ships an update every 6 weeks, and Engine Room Simulator every 3 weeks. Most recently, Saint Nicholas was updated on September 24, 2026 and Engine Room Simulator on October 7, 2026.

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