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
Pacewell
Pacewell 为职场跑者而设计：不是催你加练的健身教练，而是一份尊重生活节奏的训练计划。
$0.99
PRICE
$0.99
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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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included16 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 Pacewell: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Pacewell 为职场跑者而设计：不是催你加练的健身教练，而是一份尊重生活节奏的训练计划。 无论你在备战全程马拉松，还是只想稳定养成跑步习惯，Pacewell 都会根据你的可用训练日、时间窗口与恢复偏好，生成可执行、可调整的本地计划。 【两种计划模式】 • 马拉松计划：面向忙人的周期训练——有基础期、强化期、减量与比赛周；每周通常安排一次质量课，并穿插短时跑者力量课。 • 习惯模式：以轻松跑为主的滚动计划，帮你把跑步变成可持续的生活节奏，而不是一场冲刺后的放弃。 【今日一目了然】 打开 App，立刻看到今天该练什么：轻松跑、长距离、质量课或短时力量。每节课都有目的、体感与动作要点，帮你练得清楚、练得稳妥。 【生活优先的安全调整】 加班、睡眠不足、疼痛或不适、出行冲突时，可一键调整近期计划。Pacewell 倾向取消或降级，而不是机械补课——先保住连续性，再追求跑量。 【进度与健康洞察（可选）】 连接 Apple 健康后，可查看完成率、周跑量、睡眠与静息心率等就绪信号；匹配到今日跑步时，会先请你确认再标记完成。数据用于本机展示，不会上传到我们的服务器。 【Apple Watch】 可将近期跑步课表同步到系统「体能训练」，方便在手表上开跑。Pacewell 本身不是独立的 Watch App；同步依赖系统能力与手表支持情况。 【本地优先】 计划、完成记录与偏好保存在你的 iPhone 上。可导出计划、删除全部数据。我们不做广告追踪，也不把健康数据发到云端。 免责声明：Pacewell 提供训练参考，不构成医疗建议。若出现改变动作的疼痛，请停止训练并在需要时就医。
Written user reviews are not shown here. Check current App Store reviews >
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
Introduce social challenges and sharing options to enhance motivation
Assumption to check: Lack of user engagement features such as social sharing
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to set and customize their daily and weekly fitness goals
Assumption to check: Limited customization options for user goals
Validate with people who use this workflow before building.
Hypothesis 3
Implement detailed charts and graphs to visualize users' fitness journey
Assumption to check: Insufficient data visualization for progress tracking
Validate with people who use this workflow before building.
Hypothesis 4
Add support for syncing data with Apple Health and Google Fit for comprehensive tracking
Assumption to check: No integration with wearables or health apps
Validate with people who use this workflow before building.
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
Supabase
react-navigation
react-native-chart-kit
expo-image-picker
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.
