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
MangaBuddy : Manga Reader
Discover, Compare, and Read Manga Like Never Before!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.5
220 ratings · Top 50%
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 MangaBuddy : Manga Reader: map the core Productivity 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
Ensure a wider selection of titles and genres.
Assumption to check: Limited manga library compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Optimize loading performance and caching mechanisms.
Assumption to check: Inconsistent loading times for manga chapters
Validate with people who use this workflow before building.
Hypothesis 3
Focus on a cleaner design and better organization of content.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Implement offline access for downloaded chapters.
Assumption to check: Lack of offline reading capabilities
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
Discover, Compare, and Read Manga Like Never Before! MangaBuddy revolutionizes your manga experience with the first-ever manga comparison tool, advanced discovery features, and a premium reading experience. Built for manga enthusiasts who want more than just reading. ** UNIQUE FEATURES YOU WON'T FIND ELSEWHERE ** ** Smart Manga Comparison : • First-of-its-kind side-by-side manga analysis • Compare ratings, genres, and popularity stats • Save comparisons for future reference • Make informed reading decisions ** Advanced Discovery Engine : • Intelligent search by genre, author, or title • Trending manga recommendations • Personalized suggestions based on your preferences • Browse 10,000+ titles with daily updates ** Premium Reading Experience : • High-quality zoom and pan controls • Multiple reading modes (fit-to-width/height) • Progress tracking across all devices • Smooth page transitions and gestures • Dark and light theme support ** Smart Library Management : • Intelligent bookmarking system • Reading progress synchronization • Custom collections and categories • Search through your saved manga ** Reading Goals & Analytics : • Set and track reading goals • Monitor your reading progress • Achievement system to keep you motivated • Detailed reading statistics ** BUILT FOR PERFORMANCE : • Lightning-fast loading with smart caching • Optimized for all iOS devices • Smooth animations and transitions • Professional, intuitive interface ** COMPLETELY LEGAL & SAFE : • 100% legal content from verified sources • Public domain classics and licensed material • No copyright infringement • Safe for all ages (12+) ** PERFECT FOR : • Manga enthusiasts seeking discovery tools • Readers who want to track their progress • Anyone looking for legal manga content • Users who value comparison and analysis WHY CHOOSE MANGABUDDY : Unlike other manga apps, we focus on helping you discover your next favorite series through advanced comparison tools and smart recommendations. Our unique approach combines legal content with powerful discovery features that manga readers have been waiting for. Download now and transform how you discover and enjoy manga!
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/supabase-js
Zustand
react-native-reanimated
expo-linear-gradient
BUILD KIT DIFFICULTY
Advanced
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.
