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.
App Overview
MyShipTracking
Discover the world of maritime traffic with MyShipTracking
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
4,485 ratings · Top 30%
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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included16 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.
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for MyShipTracking: map the core Navigation 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
Implement advanced search filters by type and status.
Assumption to check: Difficult to find specific vessels quickly
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to download maps for offline use.
Assumption to check: Limited offline functionality
Validate with people who use this workflow before building.
Hypothesis 3
Add filters for notification types.
Assumption to check: Notifications can be overwhelming
Validate with people who use this workflow before building.
Hypothesis 4
Integrate real-time data sources for better tracking.
Assumption to check: Tracking accuracy issues
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
Discover the world of maritime traffic with MyShipTracking. Utilize the power of Automatic Identification System (AIS) data to monitor vessels across the globe. Whether you're a maritime professional or an enthusiast, MyShipTracking offers detailed vessel information. Key Features: Real-Time Tracking: Experience real-time ship tracking within the coverage area of our extensive AIS station network. Keep up with comprehensive AIS data where available, ensuring you stay informed about vessel movements in regions covered by our network. Extensive Vessel Database: Access detailed information on cargo ships, tankers, yachts, and more. Customize overlays for an enhanced tracking experience. Port Database & Calls: Stay informed with up-to-date information on global ports and their incoming and outgoing traffic. Fleet Management: Easily manage and monitor your own fleet with personalized tracking. Custom Area Drawing: Define and monitor custom areas on the map for targeted tracking. Real-Time Notifications: Receive instant alerts on vessel movements and changes within your areas of interest. Photo Uploads: Contribute by uploading photos of vessels, enhancing the community-driven database. Weather Overlays: Plan and track with real-time weather information, including wind and temperature overlays. MyShipTracking is your gateway to understanding and engaging with the maritime world. Whether for professional use or personal interest, our app brings the vastness of the sea closer than ever. Download now and start tracking! For our terms of service, please refer to Apple’s Standard Terms of Use at: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Written user reviews are not shown here. Check current App Store reviews >
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.
SUGGESTED BUILD STACK
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Axios
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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.
