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 Savannah
Step into a world where Savannah’s Southern charm meets spine-tingling legends of the supernatural
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 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 included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Savannah: 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
Include user preferences and tailored recommendations.
Assumption to check: Limited personalization options for users' experiences.
Validate with people who use this workflow before building.
Hypothesis 2
Implement clearer navigation cues and user guidance.
Assumption to check: In-app navigation can be confusing.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to share their favorite tours on social media.
Assumption to check: Lack of social sharing features.
Validate with people who use this workflow before building.
Hypothesis 4
Regularly update content and expand the tour offerings.
Assumption to check: Limited availability of tours and content updates.
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 Savannah’s Southern charm meets spine-tingling legends of the supernatural. Spirits of Savannah is not just an app—it’s your immersive gateway to the most comprehensive collection of ghost stories in the Hostess City of the South and beyond. With over 55 captivating tales (and growing), you’ll uncover the haunted secrets that lie beneath Savannah’s moss-draped oaks and cobblestone streets. Experience Savannah’s ghostly beauty like never before. Our app brings history to life with authentic audio narratives that pull you into the heart of each haunting story. Dive deeper with our extensive collection of historic photos and documents, offering a rare glimpse into the city’s spectral past. But we don’t stop at downtown Savannah. Spirits of Savannah takes you on a ghostly journey that stretches from the mysterious shores of Ossabaw Island, GA, to the haunted corners of Hardeeville, SC. Explore eerie cemeteries, haunted mansions, and remote locations steeped in legend that no other app dares to feature. Spirits of Savannah is designed with your experience in mind. Navigate easily through ghostly stories with our intuitive search feature, ensuring you never miss a tale that intrigues you. Whether you’re a local history enthusiast or a visitor seeking a one-of-a-kind adventure, this app is your ultimate guide. Don’t just read about Savannah’s history—experience it firsthand. Spirits of Savannah blends historical truths with eerie storytelling for a hauntingly good time. Ready to uncover Savannah’s most mysterious secrets? Let the tour begin!
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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 Native
Expo
Supabase
react-navigation
expo-location
@supabase/supabase-js
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.
