Comparison

Marine Engine Logbook vs Mariners Log Mobile

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

Head to head
About

Marine Engine Logbook

This app helps boat owners meticulously track engine hours, maintenance, fuel, and parts for their vessels. It provides organized digital logs suitable for personal records or vessel sales, with multi-vessel support and exportable reports.

Highlights
  • Log engine and generator hours
  • Record maintenance by time or runtime
  • Track Seakeeper, watermaker, and auxiliary equipment
  • Document parts and service items
  • Export logs to PDF or print
  • Manage multiple vessels
  • Optional fuel logging module
Features
Read full description

Marine Engine Logbook MEL is a modern replacement for paper engine logbooks, built for DIY boaters, cruisers, loopers, and captains who want accurate, organized vessel records. Designed around real-world boating workflows, MEL helps you track engines, generators, Seakeeper systems, watermakers, and any hour- or time-based maintenance. Whether you’re managing a single vessel or multiple boats, MEL keeps logs clean, separated, and easy to review. Track What Matters Log engine and generator hours. Record maintenance by time or runtime. Record vessel service from shops. Track Seakeeper, watermaker, and auxiliary equipment. Maintain clear service histories over the life of the vessel. Fuel Optional add on module for logging fuel ups. Easily add Recipts from fuel docks or fuel deliveries. Track yearly fuel expenses and operating metrics. Parts & Maintenance Records Document key engine components such as fuel and oil filters, impellers, belts, and other service items. Store exact part numbers so reordering next season—or at the parts counter—is fast and accurate. Professional Logbooks MEL produces clean, organized records suitable for long-term ownership or vessel sale. Export logs to clean organized PDF or direct to a printer. Print paper copies for ship’s records or binders. Transfer vessel logs to new owners Multi-Vessel Support Manage multiple vessels in one app. Each boat’s logs, maintenance history, and parts lists remain clearly separated and organized. Built for Boat Owners MEL is designed for owners who maintain their own vessels, as well as captains responsible for accurate records. Whether you’re weekend cruising, running offshore, or sailing the Great Loop, MEL provides a reliable system for documenting your vessel’s history. Stop juggling notebooks and loose papers. MEL gives you a clear, organized, and professional engine logbook—always with you, and ready when you need it. Lifetime Pro — one-time purchase. No subscription. No renewal. Marine Engine Logbook Pro Annual Subscription Marine Engine Logbook Pro — Annual auto-renewing subscription. Starting at $9.99 USD per year (price varies by region). Includes a 14-day free trial where available. After the trial period, the subscription renews at the applicable regional price unless canceled. Subscription automatically renews unless canceled at least 24 hours before the end of the current period.  Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription at any time in your App Store account settings. Privacy Policy: https://www.digital-helm.com/mel/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Mariners Log Mobile

Features
Read full description

Mariners Log is a digital maintenance and operations platform built specifically for the maritime industry. Designed for engineers, captains, and fleet managers, the app replaces paper-based systems with a structured, intelligent workflow that improves reliability, compliance, and operational efficiency. Whether you operate commercial vessels, ferries, workboats, or superyachts, Mariners Log helps you stay organised, reduce unplanned downtime, and gain better visibility over your vessel’s performance.

Screenshots

Marine Engine Logbook4 screens
Mariners Log Mobile3 screens

Verdict

The call

The clearest difference is in-app purchases: Mariners Log Mobile at none against Marine Engine Logbook's 2. Mariners Log Mobile also leads on update cadence (every 2 weeks vs every 6 weeks) and iOS requirement (13.0 vs 18.6). 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. Marine Engine Logbook sells 2 in-app purchases, starting at $9.99 per year. Mariners Log Mobile asks for nothing beyond the download.

UpkeepUpdate frequency

Marine Engine Logbook ships an update every 6 weeks, Mariners Log Mobile every 2 weeks. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

Scorecard3 real differences · 7 level
Marine Engine Logbook versus Mariners Log Mobile: the parameters behind the verdict, then further details
ParameterMarine Engine LogbookMariners Log Mobile
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.613.0 — better
Further details — not scored
Size20 MB29 MB
Age rating4+4+
DeveloperKEVIN M GRAVESKengineer Limited

In-app purchases

2 purchases

Marine Engine Logbook

Subscriptions1
  • Marine Engine Logbook -Pro Annual$9.991 Year
One-time1
  • MEL Pro - Lifetime$49.99
None

Mariners Log Mobile

No in-app purchases

Questions

Is Marine Engine Logbook free?
Marine Engine Logbook is free to download, with in-app purchases available.
Is Mariners Log Mobile free?
Mariners Log Mobile is free to download, with no in-app purchases.
Do Marine Engine Logbook or Mariners Log Mobile have ads?
Neither Marine Engine Logbook nor Mariners Log Mobile shows ads.
Which is updated more often, Marine Engine Logbook or Mariners Log Mobile?
Marine Engine Logbook ships an update every 6 weeks, and Mariners Log Mobile every 2 weeks. Most recently, Marine Engine Logbook was updated on October 1, 2026 and Mariners Log Mobile on October 8, 2026.

Other comparisons