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
PA Bible
PA Bible is the instant reference guide for any sound engineer.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.7
3 ratings · Top 50%
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 included16 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 PA 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
Include more translations and user-generated options.
Assumption to check: Limited translation options compared to other Bible apps
Validate with people who use this workflow before building.
Hypothesis 2
Add forums or discussion boards for users.
Assumption to check: Lack of community features for discussions
Validate with people who use this workflow before building.
Hypothesis 3
Create clear descriptions of premium features and benefits.
Assumption to check: In-app purchases not clearly explained
Validate with people who use this workflow before building.
Hypothesis 4
Redesign UI for a modern look with better usability.
Assumption to check: User interface feels outdated
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
PA Bible is the instant reference guide for any sound engineer. Technical specifications for hundreds of loudspeakers compiled into one simple, easy to use app. NOW – data is stored in ‘The Cloud’ – meaning we can add speakers easily! Expect more frequent updates! All loudspeakers shown with a picture for easy reference and identification. Reduced app size - images are accessed via data/WiFi connection, or optionally download the loudspeaker images to your device for offline access. Now with a comparison view for iPad – compare details between loudspeakers! PLUS details such as: Max SPL Driver Info Power Handling Dimensions (Metric or Imperial) Weight (Metric or Imperial) Signal Connectors Mains Connectors Frequency Range Angles of Dispersion AND MORE! Now featuring a Speaker Interval Calculator! Manufacturers included so far: Adamson Axys Clair Bros Coda Audio D.A.S. Audio d&b audiotechnik dB Technologies EAW EM Acoustics EV FBT Fohhn Funktion One HK Audio JBL K Array Kling & Freitag KV2 L’Acoustics LDS LSS Lynx Pro Audio Mackie Martin Audio McCauley Meyer Nexo Ohm Outline Peavey PK Sound RCF Renkus Heinz Stage Accompany Tannoy Traction Sound Turbosound TW Audio
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
Zustand
React Navigation
React Native Paper
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.
