Comparison

Boat Manager vs Nautog

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

Head to head
About

Boat Manager

Features
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Know what your boat really costs, and keep every detail of every boat you run — logbook, maintenance, safety, documents and crew — in one place, on iPhone, iPad and Mac. Built by a USCG-credentialed Master Mariner and ex-Royal Navy officer, over several thousand miles underway. EXPENSES & WHAT THE BOAT COSTS • Every cost an expense of its own: fuel, berths, labour, parts, insurance, subscriptions • What the boat costs over the last 12 months and what's coming: fixed, semi-fixed and discretionary, with capital kept apart • Every figure opens the expenses behind it; tap a year for its spending by category • Recurring bills set up once, then recorded or skipped when due • Refunds and insurance payouts netted against the cost they repay • What you've spent at each marina and with each vendor • Export to PDF or CSV for your taxes or your bookkeeper COMPREHENSIVE LOGBOOK • Captain's daily log, fuel log, pump-out log and optional generator log • Apple Weather conditions and NOAA tides recorded with each entry • GPS position and waypoints on an embedded map • Sea service summaries for USCG CG-719S SAFETY • The USCG Vessel Safety Check and a federal Required Equipment list, ready to run • Each run files a report, a task for every failure, and a PDF on the boat's papers • Tag gear with the requirement it satisfies and see when it was last checked MAINTENANCE & PLANNING • Planned jobs by date or engine hours: log, reschedule or skip, with a reminder that follows • An Outlook of what falls due month by month, budgets included • Projects: gather a refit or yard visit into one job with dates, budget and progress • A library of planned-maintenance tasks and intervals, and checklists you build • Maintenance Dashboard for the equipment you care about EQUIPMENT, TOOLS & SPARES • Every piece of equipment on every boat, with its full service history • Manufacturer, part number, serial number and cost • Link spares to the equipment they fit • Warranty and calibration dates, with reminders • Paint, glue and epoxy tracked from when they're opened DOCUMENTS & EXPIRY DATES • Registration, insurance, certificates, manuals, receipts, photos and videos • Attach files to boats, logs, equipment, spares, tools, crew, waypoints or notes • Expiry dates for documents, equipment and spares, with a reminder ahead and one-tap renewal FLOAT PLANS • USCG-inspired float plans, sent by Messages or Mail in one tap • One-tap arrival message with your position, which drafts the log entry • Emergency message with your position CREW & VENDORS • Crew lists created from, or kept in step with, Apple Contacts • See every log entry each crew member was aboard for • Yards, mechanics and marinas listed by business, with what you've paid them NAVIGATION & THE HELM • Import waypoints by GPX or CSV; see where you've been on a calendar and a map • The Helm: position, tides, weather, engine hours, fuel and what is due • To-do list, shopping list and notes ANALYSIS & REPORTS • Days underway, speeds, distances, fuel and tankage, charted • Data Health reads your logs for what cannot be right and proposes the fix • PDF reports for boats, logs, maintenance, equipment, spares and tools APPLE ECOSYSTEM • iCloud sync across iPhone, iPad and Mac, with full offline use • Apple Reminders, Calendar, Contacts and Weather throughout • Dark Mode for night watches • CSV import and export of everything, with blank templates for your own spreadsheets Everything is free for the first 30 days. After that it is $0.99 per month or $9.99 per year, billed through your Apple Account and cancellable at any time. Note: the emergency and float-plan features are aids, not a substitute for a VHF/DSC radio, an EPIRB, or leaving a float plan with someone ashore. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://boatmanager.app/privacy Support & Feedback: support@boatmanager.app | https://boatmanager.app/help

About

Nautog

Features
Read full description

Your boat. Your data. One app. Nautog is a practical logbook and maintenance app for liveaboards, cruisers, and weekend skippers. Built by a sailor who lives aboard, for people who actually use their boats. WHAT IT DOES Passage logging Log trips with route, weather, crew, notes and photos. Quick entry from the cockpit, full edit when you're alongside. Engine hours Track engine time properly. Service intervals update automatically as hours tick over, so you always know when the next oil change or impeller is due. Maintenance tracking Plan, schedule, and tick off jobs. Each task shows a clear status: green when you're sorted, amber when it's due soon, red when it's overdue. No more spreadsheet guesswork. Cost dashboard See where the money actually goes. Fuel, parts, marina fees, insurance, surveys, antifoul. Filter by month, year, or category. Offline-first Designed for life on the water. Everything works without signal. Syncs when you've got data again. Photos and videos Document jobs, damage, parts, anchorages. Stored on your device by default, with optional cloud backup on Pro. PDF export Need a service log for a survey, insurance claim, or selling the boat? Export a clean PDF of any section in seconds. WHO IT'S FOR Liveaboards staying on top of systems. Cruisers logging passages and maintenance between ports. Owners who want a real record of what's been done, what's due, and what it's costing. If you've been keeping notes in a paper diary, a Google Doc, and three different apps, this puts it all in one place. PRICING Free to start, no credit card needed. Three months of full Pro access on signup, so you can use it through a real season before deciding. Pro is available from the Nautog website after the trial ends. PRIVACY Your boat data stays yours. Photos and videos are stored on your device unless you choose cloud backup. We don't sell or share your data. QUESTIONS OR FEEDBACK I'm building this as a one-man crew and read every email. Get in touch at hello@nautog.app or have a look at nautog.com. Fair winds.

Screenshots

Boat Manager4 screens
Nautog4 screens

Verdict

The call

The clearest difference is in-app purchases: Nautog at none against Boat Manager's 2. Nautog also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, 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. Boat Manager sells 2 in-app purchases, starting at $0.99 per month. Nautog asks for nothing beyond the download.

UpkeepUpdate frequency

Boat Manager ships an update every 10 days, Nautog every 5 days. The most recent releases landed on October 21, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 4 level
Boat Manager versus Nautog: the parameters behind the verdict, then further details
ParameterBoat ManagerNautog
PriceFreeFree
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size37 MB34 MB
Age rating4+12+
DeveloperJohn TattersfieldJeremy Perez

In-app purchases

2 purchases

Boat Manager

Subscriptions2
  • Boat Manager Plus Monthly1 Month trial$0.991 Month
  • Boat Manager Plus Annual1 Month trial$9.991 Year
None

Nautog

No in-app purchases

Questions

Is Boat Manager free?
Boat Manager is free to download, with in-app purchases available.
Is Nautog free?
Nautog is free to download, with no in-app purchases.
Do Boat Manager or Nautog have ads?
Neither Boat Manager nor Nautog shows ads.
Which is updated more often, Boat Manager or Nautog?
Boat Manager ships an update every 10 days, and Nautog every 5 days. Most recently, Boat Manager was updated on October 21, 2026 and Nautog on October 28, 2026.

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