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
Audio Bibles
If you would like to spend more time absorbing the lessons of the Bible then Audio Bibles is the app for you
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.4
56 ratings · Top 30%
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/
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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 Audio Bibles: map the core Books 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
Expand library with more translations and versions.
Assumption to check: Limited selection of audio versions.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more attractive and user-friendly design.
Assumption to check: Poor user interface for browsing.
Validate with people who use this workflow before building.
Hypothesis 3
Add download feature for offline listening.
Assumption to check: Lack of offline capabilities.
Validate with people who use this workflow before building.
Hypothesis 4
Implement a free trial to attract users.
Assumption to check: High churn rate due to pricing.
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
If you would like to spend more time absorbing the lessons of the Bible then Audio Bibles is the app for you. Don’t limit the time you devote to reading the Bible – bring the Holy Book with you everywhere you go! Now you can listen and learn the messages of the Bible in a completely new way with Audio Bibles from Inkstone Mobile. With the Audio Bibles app, you can download 15 different versions of the Bible (that’s over 180 FREE books of the bible!), including classic King James and American Standard versions, and a brand new children’s version, My Bible History. Enjoy your daily devotional on the go and listen to the words of the Lord in clear, high quality audio on your iPhone, iPad, or iPod Touch. Indulge in in your favorite Psalms while taking a jog, or revisit passages from the Old Testament while in line at the bank. With the Audio Bibles app you can stay connected with Him no matter where you are. And if you come across an especially profound passage, just set a bookmark, write a note, and it will be there for you when you need it. Download now to start enjoying Audio Bibles wherever you go.
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
expo-av
React-Async-Storage
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.
