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
CSDN-技术开发者社区
CSDN——专业技术平台，成就一亿技术人。下载CSDN，您会享有全网最全代码资源、专业培训课程、一对一精品回答、最新行业资讯。
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
1,703 ratings · Top 15%
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 included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 CSDN-技术开发者社区: map the core Developer Tools 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
CSDN——专业技术平台，成就一亿技术人。下载CSDN，您会享有全网最全代码资源、专业培训课程、一对一精品回答、最新行业资讯。 CSDN——程序员必备编程交流学习平台！解决程序员工作学习中遇到的问题，所有技术疑问都能在CSDN找到可被信赖的解答。汇聚各类技术领域专家及大牛专业解答，最新的技术开发信息解决方案和编程学习教程。 适用人群：互联网公司人士、极客、程序猿、白领、设计师、零基础编程爱好者、大学生； 主要技术方向： 【前端开发】HTML、CSS、JavaScript、 jQuery、WebApp、Node.js、Angular JS、Vue.js、Bootstrap、前端工具 【后端开发】PHP、Java、Linux、rust、Python、C、 C++、Go、C#、数据结构 【人工智能】机器学习、深度学习、计算机视觉、自然语言 【移动开发】iOS、Unity3D、Cocos2d-X 【数据处理】MysQL、MongoDB、云计算、 Oracle、大数据、SQL Server 【图像处理】Photoshop、Maya、Premiere、 ZBrush 【工具资源】Git，GitHub，VS Code， Sublime Text 「自动订阅会员说明」 1、服务名称：CSDN VIP连续包月 (1个月) 2、价格：CSDN VIP连续包月产品为88元/月 3、购买自动订阅会员的账号，会在每个月订阅期到期前24小时，从您的iTunes账户中扣费，扣费成功后顺延一个订阅周期。 4、关闭服务:您可以在苹果手机“设置”-->进入“iTunes Store与App Store"-->点击“Apple ID”，选择"查看Apple ID"，进入“账户设置"页面，点击“订阅"管理自动订阅服务，如需取消，每个计费周期结束前24小时关闭即可，到期前24小时内则不再扣费。 5、服务协议： 「CSDN自动订阅服务协议」 https://blog.csdn.net/blogdevteam/article/details/118223688 「CSDN会员服务协议」 https://blog.csdn.net/blogdevteam/article/details/118223688 CSDN，致力于为中国软件开发者提供知识传播、在线学习、职业发展等全生命周期服务，并不断完善在移动端的学习体验，欢迎大家体验，提出宝贵意见~
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
Incorporate commenting on posts and direct messaging between users.
Assumption to check: Limited social interaction features such as comments or direct messaging
Validate with people who use this workflow before building.
Hypothesis 2
Implement an advanced search with filters for tags, authors, and dates.
Assumption to check: Inefficient search functionality that doesn't support advanced queries
Validate with people who use this workflow before building.
Hypothesis 3
Create a guided onboarding experience to help new users navigate the app.
Assumption to check: Poor user onboarding experience for new users
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their profiles with themes and additional information.
Assumption to check: Limited customization options for user profiles
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/native
Zustand
@supabase/supabase-js
BUILD KIT DIFFICULTY
Expert
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.
