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
Chapter Tap - LDS Scriptures
chaptertap - the easiest way to track your daily scripture reading in any of the lds standard works! a must have app for every lds church member.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.9
12 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/
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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 Chapter Tap - LDS Scriptures: 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
Implement advanced search options like filters for keywords, categories, and date ranges.
Assumption to check: Limited search functionality with no advanced filters.
Validate with people who use this workflow before building.
Hypothesis 2
Clearly define premium features and benefits during onboarding.
Assumption to check: In-app purchases may confuse users.
Validate with people who use this workflow before building.
Hypothesis 3
Add offline reading capabilities for better accessibility.
Assumption to check: No offline access to scriptures.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce folders or categories for bookmarks to enhance user experience.
Assumption to check: Basic bookmarking lacks organization.
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
chaptertap - the easiest way to track your daily scripture reading in any of the lds standard works! a must have app for every lds church member. as you read the scriptures in any of the lds standard works, simply tap on the chapters you have read and watch the progress bar instantly update. this app will track which chapters you have read in the book of mormon, doctrine & covenants, pearl of great price and the bible. you can also set a goal date when you want to complete any specific scripture volume and chapter tap will let you know what chapter you should be reading today and display if you are ahead or behind your goal. never forget what chapter you are reading and achieve your scripture reading goals with chapter tap! features: • tap a chapter number to mark that chapter as read/unread. • visually see how much of the scriptures you have read at all times. • tracks your reading progress in each of the lds standard works. • set a finish goal date and the app will tell you what chapter you should be reading today to reach your goal. • instantly see if you are ahead, behind or on track with your reading goal. • virtual bookmark, so you always know what chapter you are reading, no matter what set of scriptures you are reading from. we hope you enjoy using chapter tap and that it helps you reach your scripture reading goals! note: this app does not contain the actual scripture text. there are many other free & paid apps for this purpose. please send us your feedback, questions and suggestions by visiting chaptertap.com app developed by tom baker.
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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
Zustand
Supabase
React Navigation
@supabase/supabase-js
BUILD KIT DIFFICULTY
Starter
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.
