Comparison

RigCheck vs Mariners Log Mobile

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

Head to head
About

RigCheck

Features
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Your standing rigging keeps your mast up. Do you know when it was last inspected? RigCheck is the first and only app designed specifically for sailors who want to stay on top of their rigging condition.Β  Whether you're a weekend cruiser, an offshore passage maker, or a racing skipper β€” knowing the state of your rig isn't optional. It's the difference between a safe passage and a dismasting. Built by sailors, for sailors. SET UP YOUR BOAT IN MINUTES Tell RigCheck your rig type, spreader configuration, and rigging details. The app automatically generates every component on your boat β€” from cap shrouds and forestay to turnbuckles, toggles, swage fittings, and chainplates. Supports sloops, cutters, ketches, yawls, schooners, fractional rigs, gaff rigs, junk rigs, cat rigs, and more. Single, double, or triple spreader configurations. Multi-mast rigs with independent spreader levels per mast. INSPECT WITH CONFIDENCE Four professional-grade inspection checklists guide you through every check: - Pre-Sail Quick Check (15 items) β€” the essentials before every sail - Seasonal Inspection (40 items) β€” includes the nylon stocking test and swage magnification - Annual Deep Inspection (48 items) β€” dye penetrant testing, wire diameter measurement, tension readings - Post-Storm Damage Check (10 items) β€” focused on high-load damage after heavy weather Every checklist item tells you exactly what to look for, how to check it, and what failure looks like β€” the same knowledge a professional rigger uses. TRACK EVERYTHING OVER TIME This is what no other app does. Every inspection creates a permanent record. Every component β€” all 30 to 60 of them β€” tracks its own history: condition ratings, tension readings, inspection notes, and photos. Watch your rig age over the seasons. Spot the slow degradation before it becomes dangerous. Record standing rigging tension with your Loos gauge and track changes across haul-outs. A cap shroud that drops from 30 to 25 between seasons is telling you something important. VISUAL RIG DIAGRAM Tap directly on an interactive rigging diagram to inspect individual components. See your entire rig at a glance, color-coded by condition. Uses standard rigger nomenclature β€” V1, D1F, D1A, D2, D3 β€” so you speak the same language as your surveyor. PHOTO LOGBOOK WITH MARKUP Document your rigging with photos linked to specific components. Circle that hairline crack in a swage fitting. Annotate the corrosion creeping across a chainplate. Build a visual history you can reference at haul-out, share with your rigger, or present to a surveyor. KNOW YOUR RIG'S LIFESPAN RigCheck tracks install dates and material-specific lifespans for every component: - Wire rigging (1x19): 12 years - Rod rigging: 15 years - Dyneema: 8 years - PBO: 5 years - Stainless hardware: 20 years The app calculates your rig age and warns you as components approach end of life. No more guessing when to replace. RIGGING KNOWLEDGE BASE Learn what a professional rigger knows. In-app articles cover wire types, rod rigging, synthetic standing rigging, the nylon stocking test, swage fitting inspection, chainplate failures, common failure modes, replacement schedules, winter care, and insurance survey requirements. MANAGE YOUR FLEET Own multiple boats? RigCheck manages them all. Switch between boats instantly. Each boat maintains its own component inventory, inspection history, photo logbook, and tension records. COMPLETELY OFFLINE No account required. No subscription. No data leaves your device. RigCheck works at anchor, in a boatyard, or 500 miles offshore with zero connectivity. Your rigging data stays on your device, always accessible when you need it. There is no other app in the App Store that lets you systematically track your sailing rig condition over time. RigCheck gives you the tools and knowledge a professional rigger uses β€” in your pocket, every time you step aboard. Your rig is the most critical safety system on your boat. Check it.

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

RigCheck4 screens
Mariners Log Mobile3 screens

Verdict

The call

The clearest difference is price: Mariners Log Mobile at Free against RigCheck's $2.99. Mariners Log Mobile also leads on iOS requirement (13.0 vs 17.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Mariners Log Mobile is free to download; RigCheck costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

RigCheck ships an update monthly, Mariners Log Mobile every 2 weeks. The most recent releases landed on October 1, 2026 and October 8, 2026 respectively.

Scorecard2 real differences Β· 4 level
RigCheck versus Mariners Log Mobile: the parameters behind the verdict, then further details
ParameterRigCheckMariners Log Mobile
Price$2.99Free β€” better
Update frequencyMonthlyEvery 2 weeks β€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod β€” better
Requires iOS17.013.0 β€” better
Further details β€” not scored
Size6 MB29 MB
Age rating4+4+
DeveloperStolk.ccKengineer Limited

In-app purchases

None

RigCheck

No in-app purchases

None

Mariners Log Mobile

No in-app purchases

Questions

Is RigCheck free?
RigCheck costs $2.99, with no in-app purchases.
Is Mariners Log Mobile free?
Mariners Log Mobile is free to download, with no in-app purchases.
Do RigCheck or Mariners Log Mobile have ads?
Neither RigCheck nor Mariners Log Mobile shows ads.
Which is updated more often, RigCheck or Mariners Log Mobile?
RigCheck ships an update monthly, and Mariners Log Mobile every 2 weeks. Most recently, RigCheck was updated on October 1, 2026 and Mariners Log Mobile on October 8, 2026.

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