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
Device Lab
Device Lab 是一款围绕设备与芯片信息构建的本地化资料与工具 App，包含硬件状态监控、参数整理、芯片与设备对比、系统信息查看与实用工具，帮助你更系统、更直观地理解和管理你所使用的设备。
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
22 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 included18 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 Device Lab: map the core Utilities 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 broad compatibility and support for more devices.
Assumption to check: Limited device support and compatibility issues
Validate with people who use this workflow before building.
Hypothesis 2
Provide more comprehensive metrics and diagnostics.
Assumption to check: Lack of detailed performance metrics
Validate with people who use this workflow before building.
Hypothesis 3
Focus on a modern and user-friendly UI.
Assumption to check: Poor user interface design
Validate with people who use this workflow before building.
Hypothesis 4
Clearly communicate value of in-app purchases.
Assumption to check: Unclear monetization strategy
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
Device Lab 是一款围绕设备与芯片信息构建的本地化资料与工具 App，包含硬件状态监控、参数整理、芯片与设备对比、系统信息查看与实用工具，帮助你更系统、更直观地理解和管理你所使用的设备。 核心板块 • 概览：集中展示当前设备的关键信息与运行状态，如发热状态、CPU占用、内存占用、当前网速信息等，重要数据一目了然，支持通过桌面小组件或画中画查看，让监控信息随时可见。 • 芯片：系统化整理各代芯片的核心规格与技术参数，支持同系列、跨代际对比，直观呈现架构差异与升级重点。 • 设备：收录不同设备的硬件配置与技术参数，清晰展示不同型号之间的差异，方便在选购、对比或查阅时快速获得可靠信息。 • 工具：汇总与设备和芯片相关的性能参考与测试工具，包括性能排行榜、基准测试结果整理及测试工具索引，用于从数据角度理解不同芯片与设备的性能表现，帮助你在对比与分析时获得更直观的参考依据。 隐私与原则 • 本地优先：App 核心功能完全在设备本地运行，无需登录即可使用。 • iCloud 同步：仅用于在你的设备之间同步数据，不收集、不分析任何个人信息，默认不开启。 • 体验优先：无广告、无推送、无后台唤醒，界面简约设计，信息结构清晰，专注于内容本身。 • 轻量设计：安装包体积小，不占用额外系统资源。 Device Lab，让复杂的硬件参数，从此一目了然。
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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
React Navigation
Axios
Zustand
expo-device
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.
