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
Qing - 耿乐团队出品
Hi，耿乐团队2026全新出品，从2000年的淡蓝网，到2005年的BF99，
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
23 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 included18 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 Qing - 耿乐团队出品: map the core Social Networking 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
Implement an advanced search and recommendation system.
Assumption to check: Limited content discovery features
Validate with people who use this workflow before building.
Hypothesis 2
Create gamification features to encourage regular usage.
Assumption to check: User engagement drops after initial sign-up
Validate with people who use this workflow before building.
Hypothesis 3
Streamline notification management and customization options.
Assumption to check: Difficulties in managing notifications
Validate with people who use this workflow before building.
Hypothesis 4
Enhance privacy settings for users to control their data sharing.
Assumption to check: Limited privacy controls
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
Hi，耿乐团队2026全新出品，从2000年的淡蓝网，到2005年的BF99， 到2012年的某蓝，2026年，这是我们的第四次真诚呈现： 各位就叫我“小青”吧！ 【告别单纯看脸，附近不再死寂】 Qing，让社交回归真诚，兴趣匹配、情感连接，让你的朋友圈真实且清朗。 「无限闪照」「好友目录」「随机群聊」「AI推送」 【健身、旅行、美食，记录你的阳光生活】 让每一个鲜活的你更加生动，让分享体验更加立体。 「好友圈」「日常笔记」「同城偶遇」「云端同步」 【隐私保护，安全分享】 我们更加注意隐私保护，防骚扰、防截图、防欺诈，各项机制安全可信。 「分组可见」「申请添加」「隐形消息」「AI卫士」 消息：无限闪照、隐形消息、好友建群，通讯录好友此刻具象化了...... 日常：无压力秀图，多种可见范围，好友圈和Feed流的绝佳融合...... 交友：附近的“活人”，随机群聊，从陌生人到日常好友的完美过渡...... 我的：更懂你、人性化的功能设置，从此告别“懂的聊”、“不闲聊”的骚扰和不堪...... 原来，你在这里，现在，你也在这里！ Qing 用户服务协议 https://www.qing2000.com/user-agent/ 个人信息保护政策 https://www.qing2000.com/personal-information-protection-policy/
Written user reviews are not shown here. Check current App Store reviews >
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
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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.
