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
NovelSofa - Romance Stories
Dive into the world of addictive storytelling with NovelSofa!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
57 ratings · Top 15%
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 included15 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 NovelSofa - Romance Stories: 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
Incorporate user-generated content and diverse genres.
Assumption to check: Limited story variety and genres.
Validate with people who use this workflow before building.
Hypothesis 2
Implement better categorization and recommendation algorithms.
Assumption to check: Difficulty in finding new stories.
Validate with people who use this workflow before building.
Hypothesis 3
Add features to share stories on social media.
Assumption to check: Lack of social features for sharing stories.
Validate with people who use this workflow before building.
Hypothesis 4
Offer more enticing free content to retain users.
Assumption to check: Subscription model may deter 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
Dive into the world of addictive storytelling with NovelSofa! Explore a massive library of romance, fantasy, billionaire, and CEO web novels—updated daily with fresh chapters. Whether you're into strong female leads, dramatic love triangles, werewolf legends, or rebirth revenge plots, we’ve got it all. Features you'll love: - Vast library of engaging stories in various genres. - Daily updates and fast releases. - Customizable Settings: Adjust fonts, background colors, and reading preferences for a comfortable reading experience. - Bookmarking and Tracking: Easily bookmark your favorite pages and track your progress within novels. Start reading now and unlock your next obsession with NovelSofa! NovelSofa Membership: - Subscribing to NovelSofa grants access to all product features. - Subscription fees are charged weekly/monthly/annually/quarterly based on the selected plan. - Payment will be deducted from your iTunes account upon purchase confirmation. - Subscriptions automatically renew unless auto-renewal is turned off at least 24 hours before the current period ends. - Your account will be charged for renewal within 24 hours prior to the end of the current period, according to your plan. You can manage or disable auto-renewal anytime in your Apple ID account settings after purchase. Terms of Service: https://novelsofa.com/EN/IOSTerms.html Privacy Policy: https://novelsofa.com/EN/PrivacyPolicy.html
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
Axios
React Navigation
Zustand
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.
