App Overview

VesselFinder Pro icon

VesselFinder Pro

AstraPaging Ltd. · Business

VesselFinder is the most popular vessel tracking app, providing real-time data on the positions and movements of vessels, utilising a large network of terrestrial AIS receivers.

$9.99 · In-app purchases

PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
2.7
86 ratings · Below Average

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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A product spec, screen plans, and build steps for your coding agent.

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What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for VesselFinder Pro: map the core Business workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

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Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Focus on improving usability and performance.

Assumption to check: App has a low rating, indicating poor user experience

Validate with people who use this workflow before building.

Hypothesis 2

Implement advanced filtering options for better results.

Assumption to check: Limited search functionality and filters

Validate with people who use this workflow before building.

Hypothesis 3

Provide clearer information about subscription benefits and pricing.

Assumption to check: In-app purchases are confusing

Validate with people who use this workflow before building.

Hypothesis 4

Design a modern, responsive UI that enhances user engagement.

Assumption to check: UI is outdated and non-responsive

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

VesselFinder is the most popular vessel tracking app, providing real-time data on the positions and movements of vessels, utilising a large network of terrestrial AIS receivers. VesselFinder Pro features include: - No Ads - Port Calls - arrival and departure information for recently visited ports - Real time tracking of over 200,000 ships every day - Ship search by Name, IMO number or MMSI number - Ship movement history - follow the track of vessels for the past 7 days - Ship details - name, flag, type, IMO, MMSI, destination, ETA, draught, course, speed, gross tonnage, year of built, size - My Fleet - add your favorite vessels to "My Fleet" list. It is synced with VesselFinder.com, so any change of vessels in My Fleet list will reflect on either the mobile App or the website. - Filter vessels on map according to their type - Ship photos contributed by VesselFinder users - Simple, Detailed, Dark and Satellite maps - Weather layers (temperature, wind, waves) - Distance Measure tool - See Your Location feature Coverage - near-shore coverage, same as the web-based application VesselFinder.com and the Free version of VesselFinder available at https://itunes.apple.com/us/app/vesselfinder-free/id918080862?mt=8 IMPORTANT: If you experience any problem with the App, please fill out this form to contact us http://www.vesselfinder.com/contact instead of writing a review here. We will do our best to solve it. Thanks! Visibility of vessels in the App depends on AIS signal availability. If a particular vessel is out of our AIS coverage zone, VesselFinder displays her last reported position and updates it as soon as the vessel comes into range. Completeness and accuracy of the information provided cannot be guaranteed. Connect with VesselFinder - on Facebook: http://www.facebook.com/vesselfinder - on Twitter http://www.twitter.com/vesselfinder For any help and support, please visit the VesselFinder forum: http://forum.vesselfinder.com/forum/6-vesselfinder/

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Screenshots

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Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

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BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.