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
韩语发音 - 韩语四十音图
一个帮助韩语初学者学习韩语字母与基础口语的简单应用
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 ratings · Top 5%
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 included14 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for 韩语发音 - 韩语四十音图: 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
Include quizzes or games to engage users more.
Assumption to check: Limited interactivity in learning method
Validate with people who use this workflow before building.
Hypothesis 2
Implement voice recognition for feedback.
Assumption to check: Users may struggle with pronunciation
Validate with people who use this workflow before building.
Hypothesis 3
Add progress tracking and milestones.
Assumption to check: Difficult to track learning progress
Validate with people who use this workflow before building.
Hypothesis 4
Offer a freemium model with more free content.
Assumption to check: Paid content can be a barrier for new users
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
一个帮助韩语初学者学习韩语字母与基础口语的简单应用 包含了最常用的基础韩语口语与短语，随身携带的韩语老师,打造一口流利韩语。 最具代表性的短话和句子,包括了日常生活中的常用短语和句子, 包括商店,旅行,酒店,餐馆等不同大类.程序操作简便,界面直观,内容丰富,是学习口语的好帮手. 涵盖了日常生活中的常用场景，如商店、旅行、酒店、餐馆等。程序操作简便，界面直观，内容丰富，是学习口语的好帮手。 应用功能 （1）韩语字母 应用提供了韩语字母的学习，包括字母的形状、发音、拼写等。用户可以通过动画演示和音频来学习韩语字母。 （2）基础口语 应用包含了最常用的基础韩语口语与短语，涵盖了日常生活中的常用场景。用户可以通过音频来听取韩语口语的正确发音，并通过练习来巩固所学内容。
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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/native
expo-av
axios
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.
