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
SimpleWeatherApp
【核心亮点】
$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 included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 SimpleWeatherApp: map the core Weather 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
Allow users to set custom alerts for specific weather conditions.
Assumption to check: Limited customization of weather notifications
Validate with people who use this workflow before building.
Hypothesis 2
Provide more in-depth information like air quality, UV index, and hourly breakdowns.
Assumption to check: Lack of detailed weather information
Validate with people who use this workflow before building.
Hypothesis 3
Enhance UI with modern design principles and user-friendly navigation.
Assumption to check: Poor user interface design
Validate with people who use this workflow before building.
Hypothesis 4
Implement caching for offline access to previously viewed weather data.
Assumption to check: No offline 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
【核心亮点】 完全无广告：没有开屏广告、没有信息流、没有任何弹窗，打开就是纯粹的天气信息 启动快到秒开：冷启动不到1秒，没有空白加载页，打开立刻看到当前温度 精准天气数据：数据来自权威气象部门，支持全球城市天气查询 绝对隐私保护：不收集任何用户数据，定位信息仅在本地用于请求天气，不会上传到任何服务器 【主要功能】 • 实时天气信息：温度、湿度、风力、AQI空气质量一目了然 • 自动定位：打开自动获取当前所在地天气，无需手动选择 • 多城市管理：自由添加多个城市，随时切换查看不同地区天气 • 5天天气预报：提前掌握未来天气变化 • 动态场景背景：根据天气和时间自动切换背景，晴天、雨天、夜晚都有对应动效 • 极致简洁设计：界面干净清爽，大字体显示，老人也能轻松看清 拒绝广告骚扰，拒绝信息过载，就是一款简简单单、好用的天气应用。
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
axios
react-navigation
Supabase
@react-native-community/geolocation
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.
