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
佳传
目标客户
$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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for 佳传: 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
目标客户 本应用面向中国大陆地区的佳明（Garmin）手表用户，这类用户同时使用Strava进行运动数据管理，但由于Strava未对中国区佳明账号开放绑定接口，无法实现数据的自动同步。 应用目的 旨在解决上述数据同步壁垒，帮助中国大陆佳明用户，将其中国区账号中的运动数据，通过一键或定时任务的方式，自动迁移至其绑定了Strava的国际区佳明账号，从而让Strava能够无缝获取并展示这些数据，省去手动导出导入的繁琐操作。同时也支持从国际区同步到中国区。 主要功能与特性 1.账号安全登录 支持同时登录佳明中国区与国际区账号。采用令牌（Token）认证代替密码，完美支持已开启两步验证的账号，更安全、更便捷。 2.运动数据增量同步 选择同步方向后，自动比对两个账号中的运动记录，精准识别尚未同步的数据，一键完成补全，避免重复或遗漏。 3.健康数据同步 可从苹果健读取体重数据，同步至佳明中国区与国际区；国际区账号额外支持体脂率同步，让身体数据在两个区保持一致。 4.本地缓存与安全传输 通过佳明官方接口，将源区运动数据先导出至本地，再安全导入目标区账号。全程数据与密码仅存于本地，绝不上传第三方服务器。 5灵活稳定的同步方式 支持手动一键同步与定时自动同步。手动同步过程中锁屏或切换 App 不会中断；同步会明确标注来源（手动/后台），每次同步都清楚可控。
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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
Add friend challenges and community features.
Assumption to check: Limited social features to engage users
Validate with people who use this workflow before building.
Hypothesis 2
Implement AI-driven personalized workout suggestions.
Assumption to check: Lack of personalized workout plans
Validate with people who use this workflow before building.
Hypothesis 3
Incorporate Apple Watch/Google Fit integration for better tracking.
Assumption to check: No integration with wearables
Validate with people who use this workflow before building.
Hypothesis 4
Redesign with modern UI/UX principles for better engagement.
Assumption to check: User interface may feel outdated
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
Redux
react-native-reanimated
expo-haptics
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.
