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
DC Monuments
The best audio tour of Washington DC monuments and memorials around! Why strain your eyes to see a distant statue from a tour bus, or get rushed through your favorite site? See DC the way it was meant to be seen: on foot
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
72 ratings · Top 5%
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 DC Monuments: map the core Travel 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
Provide detailed descriptions and historical context for each monument.
Assumption to check: Limited information on some monuments
Validate with people who use this workflow before building.
Hypothesis 2
Implement better geolocation features and real-time updates.
Assumption to check: Map functionality can be inaccurate
Validate with people who use this workflow before building.
Hypothesis 3
Introduce user reviews and ratings for monuments.
Assumption to check: Lack of user engagement features
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download information for offline use.
Assumption to check: No offline access to content
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
The best audio tour of Washington DC monuments and memorials around! Why strain your eyes to see a distant statue from a tour bus, or get rushed through your favorite site? See DC the way it was meant to be seen: on foot. The National Mall's park-like setting was designed for walking. Fourteen sites are included in this tour - the White House, the Capitol, and all the monuments in between. Yes, it can be a lot to cover. So, spread it out over a couple of days, take a break for lunch, or maybe stop at one of the Smithsonians along the way. It's like having your own personal tour guide, at a fraction of the price. Two Buck Tours include maps with GPS, directions, photos, tips, interesting information about each site, and are narrated in English. No schedules, no crowds, no worries. Good for tourists and locals of all ages. Not visiting DC anytime soon? The text and photos will let you experience the city on your own.
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 Navigation
Expo Location
Axios
React Native Maps
Shadcn/UI
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.
