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
锦时练-八段锦跟练助手
锦时练-八段锦跟练助手是一款面向零基础用户的八段锦练习工具。
$2.99
PRICE
$2.99
No 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 included
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 锦时练-八段锦跟练助手: map the core Health & Fitness 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
HealthKit integration for accurate data
Assumption to check: Inaccurate tracking
Validate with people who use this workflow before building.
Hypothesis 2
AI-personalized recommendations
Assumption to check: Generic workout plans
Validate with people who use this workflow before building.
Hypothesis 3
Add friend challenges and sharing
Assumption to check: No social features
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
锦时练-八段锦跟练助手是一款面向零基础用户的八段锦练习工具。 不想刷长视频，不想看复杂理论，只想每天打开就练，适合使用这款 App。 核心功能： - 完整跟练：8 式顺序练习，分段动作轨迹和进度清晰 - 分式训练：每一式都可单独练习 - 动作讲解：步骤说明、呼吸建议、常见错误提醒 - 语音口令：按动作步骤播报要领，并提示吸气与呼气 - 每日记录：自动保存练习时长和连续天数 - 收藏与最近练习：常练内容更快进入 适合谁用： - 八段锦零基础用户 - 想在家做轻运动的人 - 需要低门槛晨练的人 - 希望通过打卡建立习惯的人 产品特点： - 打开即练，少操作 - 内容简洁，不堆信息 - 无广告，无账号 - 离线可用 说明： 本 App 仅提供健身参考，不替代专业医疗建议。如练习中感到身体不适，请及时停止并咨询专业人士。
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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
HealthKit
Supabase
RevenueCat
BUILD KIT DIFFICULTY
Not assessed in a Build Kit yet.
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.
