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
鲨鱼记账本Pro-管家理财必备工具
【产品功能】
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
317 ratings · Top 5%
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/
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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 鲨鱼记账本Pro-管家理财必备工具: map the core Finance 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
Focus on simplicity and user onboarding in the clone.
Assumption to check: Users often feel overwhelmed by too many features.
Validate with people who use this workflow before building.
Hypothesis 2
Provide comprehensive reports with visual analytics.
Assumption to check: Lack of detailed analytics and reports.
Validate with people who use this workflow before building.
Hypothesis 3
Implement machine learning for better categorization.
Assumption to check: Inaccurate transaction categorization.
Validate with people who use this workflow before building.
Hypothesis 4
Clearly outline subscription benefits and offer a trial.
Assumption to check: Subscription model may be unclear.
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
【产品功能】 3秒钟记账：极简的操作流程，让你3秒钟即可完成一笔记账操作 消费趋势：一目了然的图表，帮你快速分析消费情况 数据超安全：登录账号后，记账数据实时同步在云端 备注提示：强大的备注智能提示系统，让你记账的过程越来越简单 记账提醒：自定义每日提醒时间，再也不用担心忘记记账了 【Pro版特色功能】 饼图分析：记账数据更加一目了然 搜索功能：查找记录更加快捷 解锁密码：再也不用担心账本被人偷窥 隐藏金额：支持隐藏首页总金额 预算管理：设置月度预算，消费支出精准掌控 记账日历：查看、补记更加方便 每日收支：可在日历中查看每日收支金额 自定义周期：自由设置每月开始日期 定时记账：周期性固定支出自动记录 记账标签：按标签查看账目汇总 个性装扮：多套皮肤，软件风格私人订制 【Pro版和VIP的区别】 1、Pro 版与苹果账号绑定，一次性付费，可长期使用 2、Pro 版仅支持 iOS 设备，其它手机系统无法使用 3、Pro 版不包含VIP中的部分功能 【创始人说】 为什么要做鲨鱼记账？ 鲨鱼记账的创始人有着多年的记账习惯，我们想基于用户的需求去设计产品，想为大家做一款贴心的记账软件，只为你用着爽！我们的一切功能都以方便用户使用为出发点。看似简单的操作流程背后，却能通过图表功能，帮你分析消费状况，让你能够对自己的消费行为做出改善。记账虽然不能直接帮你实现财务自由，但是我们相信，只要你坚持记账，不断改善自己的消费情况，积极开源节流，一定能够实现财务自由！
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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
Supabase
Zustand
React Navigation
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.
