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
Wrecks & Relics
Around the world thousands of old aircraft can be found at various locations and in various conditions
$2.99 · In-app purchases
PRICE
$2.99
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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.
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 Wrecks & Relics: 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
Efficient offline maps with small download size
Assumption to check: Uses too much data
Validate with people who use this workflow before building.
Hypothesis 2
Clear lane guidance and landmark references
Assumption to check: Voice directions unclear
Validate with people who use this workflow before building.
Hypothesis 3
Instant rerouting with traffic updates
Assumption to check: Slow route recalculation
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
Around the world thousands of old aircraft can be found at various locations and in various conditions. In Museums, on sticks, in the middle of small villages, in use as bars and nightclubs, dumped by the roadside or quiet victims of all kinds of abuse. This is the app you need to find all of them. - more than 22.000 locations worldwide and almost 50.000 aircraft - find locations close to you in a simple overview - start navigating to it immediately (external navigation app required) - highlighted seen aircraft through a link to the Spottingmode Online Personal Aircraft Database (soon available in an app as well) - check the aicraft you see on a location, to update the last note date and help fellow spotters - customize the map display by hiding locations with only civil or military aircraft The app is ideal for situations where you find yourself with some time to spare to check some locations, but without the opportunity to fully investigate beforehand. Just find the locations close by and start navigating. And, you can also store locations on your device for offline use. A connection is needed to use the map, but stored locations are always available. Store the locations before leaving, so when you find yourself in a country where you have no connection, you can still find the aircraft you are looking for.
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
Mapbox
Expo Location
RevenueCat
BUILD KIT DIFFICULTY
Intermediate
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.
