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
JavaScript Flashcards
Totally rebuilt for 2025! Master JavaScript programming at your own pace with our comprehensive learning app designed for beginners and experienced coders alike
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 JavaScript Flashcards: 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
Expand categories and provide user-generated content.
Assumption to check: Limited variety of flashcards and topics
Validate with people who use this workflow before building.
Hypothesis 2
Add quizzes and interactive learning features.
Assumption to check: No interactive elements or quizzes
Validate with people who use this workflow before building.
Hypothesis 3
Integrate social sharing and community features.
Assumption to check: Lack of user community or sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Implement regular updates with new flashcards and features.
Assumption to check: Inconsistent updates and new content
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
Totally rebuilt for 2025! Master JavaScript programming at your own pace with our comprehensive learning app designed for beginners and experienced coders alike. JavaScript Flashcards provides everything you need to build your JavaScript skills from the ground up. No ads, no subscriptions, no accounts, just straight gas for your quick reference & learning. Key Features: * Key Concepts: Learn fundamental JavaScript principles with practical tips and interactive exercises to reinforce your understanding * Code Snippets: Browse through common code patterns and examples for everyday programming tasks * Flash Cards: Test your knowledge with interactive flashcards covering JavaScript syntax and semantics * Dictionary: Look up JavaScript terms, functions, and libraries with detailed explanations, examples, and related concepts * Quiz: Challenge yourself with quizzes designed to reinforce your understanding of JavaScript * Interview Questions: Prepare for technical interviews with commonly asked JavaScript coding questions and thorough answer explanations * Cheat Sheet: Access quick reference guides for JavaScript syntax and common operations, with ability to copy and share via text and email * JavaScript Journal: Track your learning progress by writing, saving and sharing your own notes JavaScript Flashcards presents topics and syntax in multiple formats to facilitate effective learning. Each feature is designed to complement the others, creating a comprehensive learning experience that adapts to your needs. Whether you're preparing for a coding interview, working on a project, or just starting your programming journey, JavaScript Flashcards offers the tools you need to succeed. Learn JavaScript anywhere, anytime, with this all-in-one reference and learning app. Perfect for students, self-taught programmers, and professionals looking to expand their coding skills. Download today and take your JavaScript knowledge to the next level!
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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
React Navigation
Async Storage
Axios
BUILD KIT DIFFICULTY
Starter
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.
