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
领头羊GPS-经纬度定位海拔速度测量仪
领头羊 GPS - 你的户外好帮手
$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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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/
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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 领头羊GPS-经纬度定位海拔速度测量仪: map the core Travel 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
Implement better algorithms to improve accuracy.
Assumption to check: Users often find GPS accuracy issues in crowded areas.
Validate with people who use this workflow before building.
Hypothesis 2
Provide themes and customization settings.
Assumption to check: Limited customization options for the user interface.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the purchase flow and provide clear instructions.
Assumption to check: In-app purchase process can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce offline caching for measurements.
Assumption to check: Lack of offline functionality.
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
领头羊 GPS - 你的户外好帮手 无论是在蜿蜒的318国道，还是在神秘的219国道上，领头羊 GPS 始终陪伴您左右，为您指引前行的方向。 领头羊 GPS 是一款集成了海拔测量与GPS精准定位等功能的多用途应用，专为户外爱好者设计。通过它，您可以轻松获取当前位置的海拔高度，并在旅途中保持方向感，无论是徒步、骑行还是自驾，都能帮助您获取当前海拔、气压、含氧量和经纬度坐标。 主要功能: • 实时海拔测量：精准了解当前位置的海拔高度，适用于登山、远足等高差明显的户外场景。 • GPS定位：快速获取准确位置，防止迷路，轻松应对复杂路况。 • 显示大气压和含氧量，随时查看数据补充氧气，防止高原反应。 适用场景: • 自驾游：在前往高原高海拔地区，实时显示海拔高度，从容应对高原反应。 • 户外探险：无论是高山徒步，还是沙漠穿越，领头羊 GPS 都是您的必备工具，让您不会迷失方向。 • 骑行爱好者：为长途骑行提供全程GPS坐标与实时海拔数据支持。 立即开启您的户外探险之旅，永不迷失方向！
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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
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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.
