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
小渔排班 - 倒班工作者的专属日历
「小渔排班」倒班、轮班工作者专属排班方案
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
26 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/
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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 小渔排班 - 倒班工作者的专属日历: map the core Productivity 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
Allow users to customize shift types and colors.
Assumption to check: Limited customization options for shifts.
Validate with people who use this workflow before building.
Hypothesis 2
Implement cloud sync for better access.
Assumption to check: Difficult to sync shifts across devices.
Validate with people who use this workflow before building.
Hypothesis 3
Add push notifications for shift reminders.
Assumption to check: No reminders for upcoming shifts.
Validate with people who use this workflow before building.
Hypothesis 4
Provide insights on shift trends and statistics.
Assumption to check: Lack of analytics on shift patterns.
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
「小渔排班」倒班、轮班工作者专属排班方案 护士医生、铁路工作者、客服值班等倒班轮班工作的首选解决方案 ※ 购买须知（重要） 1. 此应用仅可用于每日一班的排班需求。 所以此应用不适合一日内可能有多个班次安排的用户。 特别感谢 @ pricetag @小众应用 对本应用的推荐 小渔制造，良心品质！ 仅需不到一瓶饮料的钱就可永久拥有这款极物超所值、极简操作、界面精美、功能实用、苹果商店最受好评和认可的排班日历！ 【功能概览】 · 无广告、无内购、无注册登录！ · 自动轮班——如果您是规律排班，比如护士等职业，仅需输入一次您的排班规律，排班日历即刻生成！ · 手动排班——如果您的倒班无规律，小渔同样满足您的需求，人性化超便捷的操作，一个月的排班仅需不到十秒钟！ · 同事日历——无限量创建多个排班日历，而且可以在[纵览]中清晰查看所有排班情况，也可以在应用中对比所有人某一天的排班情况，相信您一定有能用到这个功能的场景！ · 串班标记——倒班自然少不了串班，串班情况轻松记录！ · 统计清晰——班次统计详情清晰展示！任选时间段，任选人员，统计分析眨眼之间！ · 备注标记——特殊情况，小渔帮您备忘记录！ · icloud同步功——利用苹果icloud账号做备份还原功能，数据安全，存储方便！多台设备共享排班动态！ · 精美皮肤——排班应用中绝无仅有的超多精心设计的精美主题皮肤免费使用，每一款皮肤都是精心设计！每一款皮肤都各有特色！相信总有一款适合你！ · 自定义图标——谁说桌面图标只能单调，小渔提供多款精心设计的应用图标自由切换！ · 日历样式diy——按照您自己的需求与喜好自定义日历的展示样式，是展示更多信息，还是极简排班，随你所好！再结合多款主题，来创造属于您自己的排班日历吧！ · widget小组件——添加通知中心挂件，无需打开应用更方便的查看您的排班情况！ · 更多实用功能期待您的尝试！ · 小渔持续更新优化，给您越来越好的体验升级！ ---------总有一种方式让你找到我--------- 如果你喜欢我，请给我满分好评。为你，我会再接再厉！ 如果你不喜欢我，请及时给我反馈。为你我会努力改进！ · 微博：@渔心码头 https://weibo.com/u/7017292830 · 小渔排班：设置—联系开发者 在此感谢各位对独立开发者的支持！非常感谢。
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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
FastAPI
TypeScript
Axios
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.
