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
Horner 10
Horner 10 is a simple reading tracker designed to help you follow the Professor Grant Horner Bible reading system.
$0.99
PRICE
$0.99
No 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 included14 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 Horner 10: 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 quizzes and sharing options to enhance user interaction.
Assumption to check: Lack of user engagement features like quizzes or social sharing.
Validate with people who use this workflow before building.
Hypothesis 2
Implement local storage for offline access.
Assumption to check: No offline access to content.
Validate with people who use this workflow before building.
Hypothesis 3
Add interactive and visual elements to enhance user experience.
Assumption to check: Limited visual elements may be less engaging.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their profile and track progress.
Assumption to check: No user profile customization options.
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
Horner 10 is a simple reading tracker designed to help you follow the Professor Grant Horner Bible reading system. The Horner system organizes Scripture into ten reading lists. Each day you read one chapter from each list. Every list moves forward independently, creating a constantly changing combination of passages and helping readers continually revisit the entire Bible. Horner 10 makes tracking this system effortless. Features include: • Daily view of all ten reading lists • One-tap tracking for completed readings • Automatic advancement through each list • Lists loop automatically when completed • Progress saved locally on your device • Clean, distraction-free reading tracker • Dark mode support This app does not require accounts, logins, or cloud services. Your progress stays on your device. Whether you are new to the Horner reading plan or have followed it for years, Horner 10 provides a simple tool to stay consistent in daily Scripture reading.
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
React Navigation
React Query
React Native Async Storage
TypeScript
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.
