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
易爻(實用)
易爻，易经中的数学。是一款结合梅花易数和六爻等进行起卦预测的软体。
$14.99 · In-app purchases
PRICE
$14.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 易爻(實用): map the core Lifestyle 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
Incorporate social sharing options for interpretations.
Assumption to check: Lack of user engagement features
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to personalize notifications and themes.
Assumption to check: Limited customization for user preferences
Validate with people who use this workflow before building.
Hypothesis 3
Implement a guided tutorial for first-time users.
Assumption to check: Difficult navigation for new users
Validate with people who use this workflow before building.
Hypothesis 4
Create a forum for users to discuss interpretations and share experiences.
Assumption to check: No community aspect or support
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
易爻，易经中的数学。是一款结合梅花易数和六爻等进行起卦预测的软体。 主要功能： 1. 支持时间，多种数字起卦，六爻，自定组合以及类象加方位等起卦方法。 2. 结合起卦时间，排列出本卦，互卦和变卦各个卦象，根据各个卦象之间的五行关系列出吉凶。 3. 排列出起卦时间对应的五行四柱，给占卜更多参考资讯。 4. 排列成六爻盘详细信息，包括反吟/伏吟/伏神等详细信息。 5. 给出对应本/互/变相信的周易信息，便于查询参考。 6. 包含常用神煞提示，焦氏易林，六爻各爻位与日月等关系的提示信息。 7. 可保存数据并支持模糊查询，数据文件可全平台导入/导出使用。 8. 支持简体/繁体切换。 9. 给出常用用神提示，便于起卦分析。 10. 在辅助盘还给出地支提示，各类象，小成图等信息，便于分析查询。 11. 对于适用的起卦方法，支持动态切换前后时间，便于找寻应期等信息。 12. 提供经典摘录，神煞说明等帮助信息，便于上手学习。
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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
Zustand
Supabase
expo-router
@supabase/supabase-js
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.
