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
小黄历-传统文化手撕黄历日历万年历正宗黄道吉日
真正温情的生活，从不远离人间烟火。
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
65 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 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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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 小黄历-传统文化手撕黄历日历万年历正宗黄道吉日: 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
Provide richer cultural insights and daily tips.
Assumption to check: Limited cultural content compared to comprehensive calendars.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to personalize their experience.
Assumption to check: Lack of customization options for themes and notifications.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the purchasing process with clear explanations and options.
Assumption to check: In-app purchases can be confusing for users.
Validate with people who use this workflow before building.
Hypothesis 4
Enable offline access to enhance usability.
Assumption to check: No offline access to calendar data.
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
真正温情的生活，从不远离人间烟火。 以前，家家户户的墙上，都挂着一本老黄历。 爷爷戴着老花镜，盘看着黄道吉日，奶奶一字一句念叨着每日禁忌，我们跟着日历过日子。 一天又一天，慢慢地撕下来。 那时侯日子很长，生活很温暖。 撕完最后一张，意味着这一年结束， 新的一年即将到来。 【产品简介】 小黄历是一款集黄历和万年历于一体的APP，UI设计简洁，高度仿真纸质版的中国传统黄历，翻页效果丝滑，APP中包含中国传统的黄历数据，详细罗列每日宜忌，时辰宜忌，并附有黄历现代文解读，帮助您轻松掌握。同时包含吉日查询，吉神罗盘，万年历，法定节假日，节日节气等功能, 方便易用, 通俗易懂。 2.0.0版本起, 新增了记事功能, 每日记事,心情树洞通通可以记录下来,iCloud备份安全又私密! 【产品特点】 ①黄历界面仿真纸质翻页, 将传统手撕历与现代科技相结合。 ②万年历界面极简不冗余, 法定节假日,节日节气一目了然。 ③桌面小组件方便快捷。 ④多种黄历主题颜色切换。 ⑤私密日记备忘永久珍藏。 ⑥致力于做中国传统文化的传承者！
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
React Native
Expo
React Navigation
Redux
Supabase
React Native Calendars
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.
