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
Dictionary of Nautical Terms
This app provides a dictionary of nautical terms
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included14 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 Dictionary of Nautical Terms: map the core Reference 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 offline storage using local database.
Assumption to check: Limited offline functionality - users cannot access terms without internet.
Validate with people who use this workflow before building.
Hypothesis 2
Add audio pronunciations and video definitions.
Assumption to check: Lack of multimedia content - users may prefer audio or video explanations.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to submit new terms and definitions.
Assumption to check: No user-generated content - users can't contribute terms or definitions.
Validate with people who use this workflow before building.
Hypothesis 4
Revamp UI with a focus on user experience and aesthetics.
Assumption to check: User interface may be outdated - could benefit from modern design trends.
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
This app provides a dictionary of nautical terms. The dictionary defines common and not-so-common nautical words and sea terms, and some which, though now obsolete, appear regularly in contemporary books and still enrich the English language. As well as de facto terms dealing with every aspect of ships and the sea - warships, merchant vessels, small craft, seamanship, navigation, weather, naval design, construction and fittings. First published in 1867, The Sailor’s Word-Book defines some nautical terms from A, “the highest class of merchant ships,” to zumbra, “a Spanish skiff or yawl.” Whether the reader is a naval history buff, a fan of nautical fiction, or a yachting enthusiast, this new edition of a classic will prove a seaworthy companion. Basic features include: ■ Terms of The day - Learn 5 nautical terms daily ■ Random terms - Learn random terms ■ Other features: - Over 12707 nautical terms and meaning - Search for a term - Bookmark a term - Cross reference
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
React Native
Expo
Supabase
Zustand
Axios
React Navigation
BUILD KIT DIFFICULTY
Starter
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.
