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
LunaRead: Romance & Fantasy
LunaRead is your personal pocket library for online fiction, letting you enjoy captivating stories anytime, anywhere.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.9
2,210 ratings · Top 5%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
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 LunaRead: Romance & Fantasy: 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
Focus on exclusive content and user-generated stories.
Assumption to check: Limited book selection compared to other platforms.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more subtle subscription reminder system.
Assumption to check: In-app purchase prompts can be intrusive.
Validate with people who use this workflow before building.
Hypothesis 3
Add discussion boards and user ratings.
Assumption to check: Lack of social features for community engagement.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance onboarding with guided tours and tips.
Assumption to check: Navigation can be confusing for new users.
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
LunaRead is your personal pocket library for online fiction, letting you enjoy captivating stories anytime, anywhere. Discover a rich selection of novels across popular genres, including fantasy, urban romance, suspense, sci-fi, werewolf, young adult, chick lit, horror, and more. Our library brings together a wide range of engaging stories, from trending online fiction to compelling e-book style reads. Whether you enjoy superpowers, billionaire romance, pregnancy drama, werewolf bonds, demon hunters, vampires, or other exciting themes, LunaRead helps you find stories that match your taste. Designed for readers around the world, LunaRead offers a smooth and convenient way to explore online novels on your phone. Download LunaRead and begin a new reading experience. Whether you are commuting, taking a break after work, relaxing at home, or looking for something to read before sleep, LunaRead keeps popular stories within easy reach. With a broad collection of genres and stories, you can freely choose from hundreds of online novels loved by many readers. Terms of Use：https://lunaread.net/TermsOfUse.html Privacy Policy：https://lunaread.net/PrivacyPolicy.html Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
Zustand
@react-navigation/native
Firebase
@react-native-async-storage/async-storage
BUILD KIT DIFFICULTY
Expert
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.
