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
Litrad: Booktok, Reading Books
Read your favorite books anytime, anywhere with Litrad! Discover tens of thousands of bestselling web novels, romance novels, ebooks, fantasy stories and audiobooks with a fully customizable reading experience.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
1,363 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 included17 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 Litrad: Booktok, Reading Books: 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 or partnerships with authors.
Assumption to check: Limited book selection compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Implement caching and optimized loading techniques.
Assumption to check: Slow loading times for large books.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription options and provide clear benefits.
Assumption to check: Confusing subscription model.
Validate with people who use this workflow before building.
Hypothesis 4
Integrate social sharing for reading progress and recommendations.
Assumption to check: Lack of social sharing features.
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
Read your favorite books anytime, anywhere with Litrad! Discover tens of thousands of bestselling web novels, romance novels, ebooks, fantasy stories and audiobooks with a fully customizable reading experience. FEATURES * Massive Library Explore thousands of free and premium books across today's most popular genres, including romance, billionaire, CEO, contract marriage, werewolf, alpha, vampire, mafia, fantasy, adventure, mystery, science fiction, historical romance, young adult fiction, xianxia, wuxia and more. New chapters and new stories are updated every day, so you'll always have something new to read. * Litrad Exclusive Originals Enjoy thousands of exclusive web novels available only on Litrad. Trending stories include: • Annulled Love, Mafia's Fall: She Bulldozed All • A Divorce He Regrets • The Queen Returns: Pampered By Her Three Powerhouse Brothers • Heartbreak Billionaire: He Should Never Have Let Go * Free Books & Rewards • Read free preview chapters. • Earn free Coins every day to unlock new chapters. • Enjoy exclusive events, daily rewards and special offers. * Personalized Reading Experience Build your own digital library and save all your favorite books. Customize font size, brightness, reading themes, page style and day or night mode for the perfect reading experience. * Read Offline Download your favorite books and enjoy reading anytime, even without an internet connection. Import EPUB, TXT, UMD and more than 30 ebook formats into Litrad. * Audiobooks Listen to your favorite books with the built-in audiobook player. About Auto-Renewable Subscriptions • Auto-renewable subscriptions include Coin Packs. • Coin Packs: $20, $30, $50 and $100. • Payment: Payment will be charged to your Apple ID account after purchase confirmation. • Renewal: Your subscription renews automatically unless canceled at least 24 hours before the end of the current billing period. Renewal charges will be applied within 24 hours before the current period ends. • Cancellation: You can manage or cancel your subscription anytime in your Apple ID account settings. Privacy Policy: https://staticpage-en.cdreader.com/EN/AppPrivacyPolicy.html?client_proid=1001&mt=1 Subscription Terms: https://promotion.cdreader.com/CheckinCard/agreement.html Terms of Use: https://staticpage-en.cdreader.com/EN/termsofservice.html?client_proid=1001&mt=1 Need help? Email: [email protected] Facebook: https://www.facebook.com/Litrad-106037851545175
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
Axios
Redux
Firebase
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.
