# Bosun's Mate — Vessel log every captain wants

> Vessel log every captain wants (iPhone/iPad app by Sean Bell.)

- Source: https://appshunter.io/ios/app/bosuns-mate/id6770087383 (this page in markdown: same URL + `.md`)
- Developer: [Sean Bell](https://appshunter.io/developer/1896714600)
- Category: Lifestyle, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 150 MB
- Languages: American English
- Released: 2026-06-14
- Data updated: 2026-08-13
- User reviews in markdown: https://appshunter.io/ios/app/bosuns-mate/id6770087383/reviews.md

## What is Bosun's Mate?

Bosun's Mate is the vessel management system every mariner wishes they had.

Engine hours. Fuel logs. Parts catalogs. Receipts. Cruising notes. Everything that matters about your boat — captured beautifully, totalled automatically. Searchable. Cross-linked. Never lost.

WHY CAPTAINS LOVE IT

— Multi-engine support for twin and quad rigs. Track port, starboard, and beyond — each engine logged independently with its own service intervals, fuel economy, and hours.

— AI receipt OCR. Snap a photo of a parts receipt and Bosun's Mate reads every line item in 8 seconds. Vendor, OEM numbers, prices — extracted, organized, and added to your catalog. No more squinting at fading thermal paper.

— Multi-page survey extraction. Drop in a marine survey PDF and the AI pulls engine specs, hull data, electronics, and equipment into your vessel profile automatically. Saves hours of manual entry every time you buy a new boat.

— Per-engine fuel economy. See exactly which engine is burning more fuel at any RPM. Charts compare engines side-by-side at every cruise speed. Spot a lazy engine before it costs you thousands in repairs.

— Cruising log with photos. Document every trip with notes, weather, distance, and on-the-water photography. Build a permanent record of your adventures.

— Cost tracking that actually balances. Every receipt is logged with category, vendor, and date. Year-to-date costs always one tap away.

— Activity feed. Chronological view of every change — yours and your crew's. Like git history, but for your boat.

— Co-Captain shared access. Invite your spouse, captain, or trusted crew with read-only or full-edit permissions. Everyone looking at the same data.

— Offline-capable. Works on the water with no signal. Syncs the moment you're back at the dock.

— Photo attachments on every entry. Document parts, damage, repairs visually.

WHAT YOU CAN TRACK

— Maintenance (oil changes, service intervals, anode replacement)
— Fuel purchases and fuel-economy data points
— Parts catalogs (with OEM and aftermarket numbers, grouped by manufacturer)
— Zincs and consumables with replacement schedules
— Surveys, manuals, and reference documents
— Cruising logs with destinations, distances, and photos
— Custom categories you define yourself

PRIVACY FIRST

Sign in with Apple or email — your choice. We never sell your data, never track you across other apps, and never share with advertisers. Account deletion is one tap in Settings — your data is permanently removed within minutes.

SUBSCRIPTIONS

Bosun's Mate is free to download with a 7-day free trial of all features. After the trial, continue with an auto-renewable subscription:

— Bosun's Mate Pro Monthly — 1-month auto-renewing subscription
— Bosun's Mate Pro Annual — 1-year auto-renewing subscription

Payment is charged to your Apple ID at confirmation of purchase. Your subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID Account Settings > Subscriptions.

Terms of Use (EULA): https://bosunsmate.app/terms
Privacy Policy: https://bosunsmate.app/privacy

Built by mariners. For mariners.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Bosun's Mate Pro | $4.99 | per month |
| Bosun's Mate Annual | $49.99 | per year |



## Version history (last 5 releases)

### 1.5.4 — 2026-08-10

Introducing the Safety Compliance tab — the easiest way to keep your vessel USCG-ready.

• Track flares, fire extinguishers, and PFDs in one place • Automatic expiry math (42 months for flares, 12 years for extinguishers) • Red and amber alerts on your dashboard 30 days before anything expires • USCG minimum-equipment reference guide, plus links for Transport Canada, MCA (UK), AMSA (Australia), and Maritime NZ

Hull Insurance Renewal Tracker (Pro) Log your renewal date and we'll flag it on your dashboard as it approaches — plus send a friendly email reminder 14 days before, so coverage never lapses.

New Blog Dockside reading at bosunsmate.app/blog — starting with "The Vessel Carfax: Why Digital Logs are the New Standard for Marine Resale."

### 1.5.3 — 2026-07-28

A big one today, captain.

• Engine hours that update themselves — save a Cruising Log entry with an end-of-trip reading and your dashboard's Engine Hours tile ratchets forward automatically. No more typing the same number twice. (Direct customer feedback — you asked, we shipped.)

• Custom Checklists — every built-in checklist can now be duplicated, renamed, reordered, and shared with your co-captain. Start from scratch or make your favourite templates your own.

• Season Summary — under More → Season, your year on the water at a glance: distance, engine hours, fuel and dollars spent by category. Download as a PDF or share the shipyard-tidy image card with a crewmate.

• A quieter Pro trial — a gentle gold pill next to your vessel name shows how many days of your 7-day trial you have left.

• A better "leave a review" nudge — if we've earned it, we now ask right inside the app. One tap, no App Store bounce.

• Fresh from the shipyard carousel — a small "What's new" card greets returning captains on update.

• Bring a captain aboard — send another skipper your invite link from the What's New card. When they upgrade to a paid plan, we add 30 days of Pro to your account. No cap.

• A polished new App Store icon — the gold anchor proper, at every size.

Fair winds.

### 1.5.2 — 2026-07-19

Custom Checklists — every built-in checklist can now be duplicated, renamed and reordered. Add your own steps, share them with your co-captain, or build a fresh one from scratch.

• Season Summary — under More → Season, your year on the water at a glance: distance, engine hours, fuel volume, and dollars spent (broken down by category). Download as a PDF or share the shipyard-tidy image card with a crewmate.

• A quieter Pro trial — a gentle gold pill sits next to your vessel name so you always know how many days you have left. No pushy banners, no surprises.

• A better "leave a review" nudge — if Bosun's Mate has earned it, we now ask right inside the app. One tap, no App Store bounce.

• Fresh from the shipyard — a small "What's new" card greets returning captains on update, so nothing you built for us gets missed. Ends with a "bring a captain aboard" share card, in case you know a skipper who'd like a proper logbook of their own.

Fair winds.

### 1.5.0 — 2026-07-12

Bosun's Mate is now free forever.

Log 1 vessel with unlimited entries — maintenance, fuel, costs, cruising log, cruiser contacts and photos — with no credit card, ever. Every new signup gets a 7-day trial of Pro to try charts, checklists, AI receipt scanning, unlimited vessels and co-captain sharing. When the trial ends, you keep everything you've logged and simply drop to the Free plan.

New in v1.5.0:

• Season Summary — a Pro-only recap card for any window (calendar year, cruising season, or a custom range). Distance, engine hours, fuel and total spend rolled up with averages like MPG, GPH and cost per nautical mile. Downloadable as a PDF and shareable as a beautiful image — perfect for the "look what we did this year" scroll through your marina friends.

• Checklists — winterizing, spring commissioning and pre-departure checklists with per-item notes and a full history of every run. Ideal for replacing the paper list stapled to your nav-station bulkhead.

Under the hood: • Fuel Economy charts now use cumulative math — GPH and MPG trends line up correctly month over month • New "Fuel added" field in Cruising Log entries feeds the economy math automatically • Rebuilt in-browser install flow for clearer setup • Faster login and dashboard load • Numerous small polish and stability fixes

Thank you for trusting Bosun's Mate with your logbook — and fair winds

### 1.4.1 — 2026-07-09

Highlights in 1.4.1
• Cruiser Contacts — log every boat you meet on the water, with pin-drop locations that reverse-geocode to real place names.
• Location pin-drop upgrade — every Cruising Log entry now captures a real anchorage name, not just coordinates.
• Faster paywall — fixed a bug where the upgrade sheet took an extra beat to appear.
• Under-the-hood polish — smoother map centering, sharper reserved-hours math, and quieter background sync.
Fair winds

## Related topics

[pirates boat maintenance](https://appshunter.io/ios/topics/pirates-boat-maintenance)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*