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
Hearken Bible
Listen to the complete King James Version Bible — all 66 books, 1,189 chapters — narrated in a clear, warm voice
$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'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 Hearken Bible: map the core Reference 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
Incorporate daily notifications and community features.
Assumption to check: Limited engagement features that keep users returning.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the subscription model and provide clear explanations.
Assumption to check: In-app purchase confusion among users.
Validate with people who use this workflow before building.
Hypothesis 3
Offer customizable reading plans based on user interests.
Assumption to check: Lack of personalized reading plans.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download verses or reading plans for offline use.
Assumption to check: No offline access to Bible 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
Listen to the complete King James Version Bible — all 66 books, 1,189 chapters — narrated in a clear, warm voice. No internet required. Hearken is built for listening. On your iPhone, iPad, or Apple Watch, the entire KJV Bible is ready the moment you download the app. No subscriptions, no streaming, no ads. FEATURES • Complete KJV Bible — Every chapter of the Old and New Testament, fully narrated • Apple Watch — Listen directly from your wrist, no phone needed • Offline — All audio is bundled in the app. No internet, no buffering • Track Your Progress — See exactly where you are across all 66 books • Sleep Timer — Fall asleep to scripture with auto-stop • Playback Speed — Listen at 0.75x, 1x, 1.25x, or 1.5x • Continue Listening — Pick up right where you left off • Auto-Advance — Chapters play continuously, book by book APPLE WATCH Transfer chapters to your Watch and listen phone-free during walks, workouts, or quiet time. Progress syncs automatically between devices. ONE PURCHASE, EVERYTHING INCLUDED No subscriptions. No in-app purchases. No ads. Pay once and you have the complete audio Bible forever.
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
Supabase
React Navigation
Axios
Zustand
BUILD KIT DIFFICULTY
Advanced
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.
