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
MoboReader: Top Novels & Books
Enjoy your favorite books anytime, anywhere with MoboReader
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.2
52,790 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 MoboReader: Top Novels & 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Enjoy your favorite books anytime, anywhere with MoboReader. Discover millions of bestselling novels and immersive stories with a fully customizable reading experience. FEATURES * Massive Library Explore millions of free and premium ebooks across today's most popular genres, including Romance, Billionaire, CEO, Alpha, Werewolf, Vampire, Secret Baby, Contract Marriage, Mafia, Revenge, Fantasy, Adventure, Mystery, Young Adult, Wuxia, Xuanhuan and many more. New chapters and new stories are updated every day, so you'll always have something exciting to read. * MoboReader Original Series Marrying Her Was Easy, Losing Her Was Hell The Humble Ex-wife Is Now A Brilliant Tycoon Heartbreak Billionaire: He Should Never Have Let Go She Was The Joke, Now She's The Queen * Free Rewards & Special Offers • Free books and exclusive promotions. • Free trial chapters to discover new stories. • Earn free Coins to unlock premium books and chapters. * Personalized Reading Experience Build your own bookshelf and organize all your favorite books in one place. Customize your reading with adjustable font size, brightness, day and night modes, background themes, and more for maximum comfort. * Read Offline Anytime Download your favorite novels and enjoy reading wherever you are, even without an Internet connection. Import EPUB, TXT, UMD, and over 30 supported ebook formats directly into MoboReader. * Audiobooks Listen to your favorite stories anytime with our easy-to-use audiobook player. About Auto-Renewable Subscriptions Auto-renewable subscriptions in the app include Check-in Coin Packs. • Coin Packs: US$20, US$30, US$50 and US$100. • Payment: Your Apple ID account will be charged after purchase confirmation. • Renewal: Your subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current billing period. Your account will be charged within 24 hours before renewal. • 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 or have suggestions? Email: [email protected] Facebook: https://www.facebook.com/ereader.ebook/
Written user reviews are not shown here. Check current App Store reviews >
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
Offer a larger selection of free novels and books.
Assumption to check: Limited free content available
Validate with people who use this workflow before building.
Hypothesis 2
Implement clearer explanations of subscription tiers and benefits.
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and reduce visual overload.
Assumption to check: User interface clutter
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing and community features for readers.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
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
Zustand
react-native-reanimated
@supabase/supabase-js
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.
