# VesselTwin: Boat Maintenance — Logbook, reminders & manuals

> Logbook, reminders & manuals (iPhone/iPad app by Joao Lima.)

- Source: https://appshunter.io/ios/app/vesseltwin-boat-maintenance/id6763859464 (this page in markdown: same URL + `.md`)
- Developer: [Joao Lima](https://appshunter.io/developer/1895527536)
- Category: Productivity, Lifestyle
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 26 MB
- Languages: American English
- Released: 2026-09-11
- Data updated: 2026-10-16

## What is VesselTwin?

Keep your boat's maintenance log, manuals, parts, and documents in one private place, see what's due next, and ask questions answered from your own records.

Your records are private by default. We don't sell your personal information, we don't send your boat records to advertisers, and the AI providers we use can't train their models on your data. You can export or delete your account at any time.

Use VesselTwin on iPhone and iPad while work is happening. Capture a photo at the dock, file a document in the yard, record a measurement onboard, or add a maintenance note before the details disappear. Capture drafts save locally first and sync when you are back online.

KNOW WHAT'S DUE, FIND WHAT YOU NEED

• Today shows what's overdue and what's coming up next.
• My Boat organizes work, parts, documents, and photos by area, so a job lives where you expect it.
• Keep a job as a to-do and find it again from My Boat, with To Do and History tracked separately.
• First use offers a clear starting point: save a receipt, remember a job, or find a manual. Included manufacturer manuals show up even before you upload your own documents.

KEEP THE BOAT RECORD TOGETHER

• Maintain the boat profile, specifications, measurements, equipment, parts, and documents in one place.
• Record maintenance and service history with the context future owners, operators, and technicians need.
• Track expenses in your boat's reporting currency, see service costs alongside the work they describe, and tap through reports to see what's behind each total.

CAPTURE FROM THE FIELD

• Add photos, documents, measurements, maintenance notes, and issues from a focused capture flow.
• Scan multi-page documents and recognize equipment serial numbers on device, then review before saving.
• Keep working through unreliable marina connectivity with a local-first capture inbox.
• Review, retry, and finish uploads when the connection returns.

USE THE NATIVE TOOLS AROUND YOU

• Glance at Next service and Readiness from private, offline Home Screen widgets.
• Ask Siri to open a boat, begin a review-first capture, or read the next saved service date.
• Find cached boats and record titles in Spotlight without indexing private notes or identifiers.

FIND THE RIGHT CONTEXT

• Search your private vessel records, starting from the boat you're already looking at.
• Browse public boat-model knowledge and community experience.
• Keep useful provider contacts near the vessel record.

ASK YOUR BOAT

• Ask questions in VesselTwin and get grounded answers from saved records, with sources you can open.
• Reopen a saved Ask or Troubleshoot answer any time without asking again.
• Troubleshoot walks through a symptom against this boat's manuals and service history.
• Continue in the assistant you choose. You can also connect ChatGPT for basic, read-only boat questions; Owner Pro supports Claude and deeper questions across your records.
• Private document text, notes, costs, identifiers, and stored locations stay off unless you explicitly allow access.
• Optionally let a connected AI app propose notes, checklists, maintenance entries, and measurements. Every proposal waits in your Inbox until you accept it.

COMMUNITY CONTROLS

Share or publish only what you choose. Report community content and block members at any time.

VesselTwin is built for boat owners and operators who want the boat's real history to be easier to capture, understand, and carry forward.

OPTIONAL OWNER PRO SUBSCRIPTION

Subscribe monthly or annually in the app for up to five boats, 100 document analyses per month, email-in capture, and optional AI-app permissions. Prices and billing periods are shown before purchase. Apple subscriptions renew automatically until canceled; manage or cancel in your Apple Account subscription settings. Core first-boat record keeping remains free.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.vesseltwin.io/privacy

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Owner Pro Annual | $99.00 | per year |
| Owner Pro Monthly | $12.00 | per month |


## Is VesselTwin safe?

Not enough ratings yet to assess VesselTwin.

## Is VesselTwin legit?

VesselTwin: Boat Maintenance has limited verification signals. The AppsHunter Legitimacy Score for VesselTwin is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.3.5 — 2026-10-15

Expense reporting in your currency, connected devices, and drafts that don't get lost.

• Expenses: choose a reporting currency for your boat and set the currency on each expense. Reports note any amounts in other currencies that aren't included in a total.
• Tap through the expense report to see what is behind each total, and assign a system to service that has none.
• Unsent expenses and parts are kept on your phone and retry on their own when you're back online.
• Connect a device: link a SignalK device from the new Integrations screen. Once one is connected, Sensors on your boat lets you review and confirm the readings it reports.
• Sailboats: record rig type, rig fractionality and keel type on your boat.
• Sizes and readings now points you to tank sizes, and equipment suggestions load reliably when you link an existing item.
• Refreshed loading screens with the VesselTwin logo.

### 1.3.4 — 2026-10-06

Show me where, easier lists, and safer sign-out.

• Show me where: add private photo guides that mark where things are on your boat, with several labelled callouts on each photo.
• Easier to read: lists wrap long names instead of cutting them off, and buttons are larger and easier to tap.
• Signing out now warns you before it discards anything you haven't sent yet, and unsent drafts show up as Unsent on Today and in your lists.
• My boat has a new All records shortcut, so Expenses and Parts are only two taps away.
• Appearance follows your phone's light or dark setting by default.

### 1.3.3 — 2026-10-01

Measurement photo sets, and steadier saves.

• Group measurement photos into named sets, and manage your boat's photos more easily.
• Recurring expenses now log the exact date you confirm, and ask before logging one that isn't due yet.
• Tapping a notification opens the right screen, and your records are hidden in the app switcher.
• Open forms keep working if the list behind them fails to refresh, and saves wait out a brief signal drop.
• Document and expense dates stay on the right day across daylight-saving changes.
• A Contributors shortcut in Community, clearer VoiceOver photo names, and Reduce Motion support.

### 1.3.2 — 2026-09-28

Records open where you tap them, and a smoother camera.

• Tapping a record in My Boat or Ask now opens it right there, instead of appearing to do nothing.
• Taking or choosing a photo no longer pauses the app while it's prepared.
• If accepting a proposal from a connected AI app doesn't go through, the review now tells you why instead of quietly resetting.
• VoiceOver now announces save confirmations, and Undo stays up long enough to reach it.
• Signing out now also clears saved boat summaries from this iPhone.

### 1.3.1 — 2026-09-26

Easier sharing, and a new layout for iPad.

• Adding a person to your boat now sends them an invitation. They get access once they accept, and you no longer see an error after inviting someone.
• iPad: a new three-column layout with a boat sidebar, keyboard navigation, and drag and drop for several documents at once.
• Settings › Plan & access tells you when a subscription payment needs attention.
• Clearer messages when a password isn't accepted at sign-in or reset.
• Sign-up now has a way back to sign in from its first screen.
• Larger tap targets, cleaner VoiceOver labels, and other reliability fixes.

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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 2026-10-16.*