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
Historic Charleston Tour
Historic Charleston Tour is your all-in-one tool for delving into the captivating tales of one of America's most charming and historical cities
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.1
8 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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included15 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 Historic Charleston Tour: 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
Implement a more robust review and rating system with user incentives.
Assumption to check: Limited user reviews and low app rating
Validate with people who use this workflow before building.
Hypothesis 2
Provide extensive details and user testimonials for each tour.
Assumption to check: High price for tours without detailed information
Validate with people who use this workflow before building.
Hypothesis 3
Integrate GPS-based navigation for users to find tour locations easily.
Assumption to check: Lack of in-app navigation features
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to share tours on social media platforms.
Assumption to check: No social sharing features
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
Historic Charleston Tour is your all-in-one tool for delving into the captivating tales of one of America's most charming and historical cities. This app will be your personal tour guide, letting you explore Charleston's history at your own leisure and comfort. The app provides user-friendly, self-guided walking tours. Navigate through the city with ease using our GPS-enabled map, complete with voice-guided walking directions. Each location on the tour is paired with a comprehensive description to enrich your understanding of its historical significance. Whether your interests lie in Revolutionary War History, Iconic Plantations, Architectural Gems, or the unique Gullah Culture each tour comprises a thoughtfully selected list of locations that tell a story about the city's past. Experience Charleston's rich heritage like never before with the Historic Charleston, SC app. Begin your journey through history today, and see the charm of Charleston in a whole new light.
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
react-navigation
react-native-maps
Axios
Redux
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.
