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
Cineby: Movies & Drama TV Show
Stop arguing about what to watch.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.4
415 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 included16 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 Cineby: Movies & Drama TV Show: map the core Reference 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
Add user-generated lists and recommendations
Assumption to check: Limited content curation features
Validate with people who use this workflow before building.
Hypothesis 2
Implement clearer subscription tiers and benefits
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 3
Optimize search algorithms and results loading
Assumption to check: Search functionality is slow
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download content for offline viewing
Assumption to check: Limited offline access
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
Stop arguing about what to watch. Cineby makes movie nights easier with Movie Match, a smart feature that helps you and your friends find movies you'll both love. Simply choose your preferences and it suggests the perfect movie for everyone. You can also discover popular films, explore detailed information, and save movies to your personal watchlist. Explore movies, save what you want to watch, and enjoy a clean cinematic browsing experience. Features - Discover Movies Browse popular and top-rated movies with detailed information. - Movie Match Find movies that you and your friends will both enjoy. - Watchlist Save movies and keep track of what you want to watch. - Movie Details View ratings, cast, overview, and official trailers. - Clean Cinematic UI Enjoy a smooth and modern movie discovery experience. Discover movies, save your favorites, and find the perfect movie to watch together with this app. Data Source: Movie and television information, including posters, artwork, and summaries, is provided by The Movie Database (TMDB). This application uses the TMDB API to display movie-related data but is not endorsed, certified, or officially associated with TMDB. Disclaimer" This application is an independent movie discovery tool and is not affiliated with or endorsed by any film studios, production companies, or streaming platforms. It does not host, upload, or stream movies or TV shows. All trademarks, logos, and copyrighted materials remain the property of their respective owners.
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
Axios
React Navigation
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.
