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
Spirits of Charleston
Step into a world where the charm of Charleston's cobblestone streets meets the mysteries of the supernatural
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
10 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'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 Spirits of Charleston: 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 offline caching for audio and text.
Assumption to check: Limited offline access to content
Validate with people who use this workflow before building.
Hypothesis 2
Introduce user reviews and uploads for tours.
Assumption to check: No user-generated content feature
Validate with people who use this workflow before building.
Hypothesis 3
Enhance navigation clarity with breadcrumbs.
Assumption to check: Navigation can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Add personalized tour recommendations based on user preferences.
Assumption to check: Lack of personalization options
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
Step into a world where the charm of Charleston's cobblestone streets meets the mysteries of the supernatural. "Spirits of Charleston" is not just an app; it's your gateway to exploring the most comprehensive collection of ghost stories in the Lowcountry. Immerse yourself in over 75 captivating tales, with new stories continually added to keep the spirits alive. Experience the eerie beauty of Charleston like never before. Our app brings the past to life with authentic audio narratives, drawing you into the heart of each haunting story. Delve deeper with our extensive collection of historical photographs, offering a window into Charleston's spectral past. Our app doesn't just stop at the French Quarter. We take you on a ghostly journey across the entire Charleston peninsula, from the sandy shores of the beaches to the solemn forts and islands, and even to the historical depths of Summerville and Moncks Corner. Discover tales from corners of Charleston that have never been explored in any other app. "Spirits of Charleston" is designed with user experience in mind. Easily navigate through the ghostly narratives with our intuitive search feature, ensuring you find the stories that intrigue you the most. Whether you're a local history buff or a visitor seeking a unique tour, our app is your perfect companion. Don't just read about history—experience it. "Spirits of Charleston" offers a hauntingly good time, blending historical facts with spine-tingling storytelling. Ready for a ghost tour like no other?
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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
React Native Maps
Expo AV
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Axios
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.
