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
金教练射箭教学
大家好，这是一款专业射箭教学应用程序，由韩国射箭泰斗金亨铎教练主讲。
$29.99 · In-app purchases
PRICE
$29.99
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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Build Kit
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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 金教练射箭教学: map the core Sports 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
Offer a wider range of tutorials and expert guest sessions.
Assumption to check: Limited tutorial variety and depth
Validate with people who use this workflow before building.
Hypothesis 2
Implement forums or chat features for users to discuss and share tips.
Assumption to check: Lack of community interaction features
Validate with people who use this workflow before building.
Hypothesis 3
Enhance progress tracking with visual analytics and milestone achievements.
Assumption to check: Inadequate tracking of progress
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a free trial period to attract more users.
Assumption to check: High subscription cost without free trial
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
大家好，这是一款专业射箭教学应用程序，由韩国射箭泰斗金亨铎教练主讲。 金教练投身射箭事业40多年，在他的射箭职教生涯中创造了无数辉煌。于1984年，率领韩国国家射箭队获得女子奥运金牌，这也是韩国奥运史上的第一枚金牌。作为国际箭联教练委员会委员，金教练还亲自为世界各国的国家队射手进行高水平射箭指导，并在比赛中取得令人瞩目的成绩，其中包括丹麦国手-世界冠军Maja Jager。 作为韩国射箭界的泰斗，国际箭联委员，金教练始终致力于射箭项目的普及、推广，帮助各国教练提高射箭教学方法。他毫无保留的分享自己多年积累的经验，永远都会在别人需要帮助的时候给予最真挚的帮助。他和师娘对我的帮助永远铭记在心，并将一直激励着我，用心做好射箭项目的推广和提高。让更多的爱好者可以接触到最好的射箭技术。 从事教学的人都清楚，不管学习什么项目，正确的基础动作、科学有效的训练方法、顶级思维理念都是最为重要的。如果你的基础动作正确，之后的专项提升会很稳定可以达到高水平射手水准。如果基础动作就出了错误，而且没有得到及时的纠正，一直不知觉的在进行错误的反复练习，那么，你的射箭技术就很难得到提高达到稳定。 不论你是教练员、专业射手、还是射箭爱好者都可以通过《金教练射箭教学》App系统性的学习最专业射箭技术和教学方法。《金教练射箭教学》App通过视频、图片、和深入浅出的文字对：射箭基础动作、持续用力的分析以及教学方法三个方面进行了系统的阐述和指导。相信你们通过《金教练射箭教学》的学习可以找到最好的答案！希望大家可以喜欢射箭并从中得到乐趣！ 金教练简介 -国际箭联教练委员会委员 -韩国射箭协会主管 -韩国教练协会主席 -韩国射箭俱乐部协会主席 -现代射箭队主教练 -韩国射箭协会强化委员会 -韩国中源大学教授
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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
axios
react-navigation
@react-native-async-storage/async-storage
expo-av
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.
