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
键来
键来 — 极简自定义，打字更自在
$0.99 · In-app purchases
PRICE
$0.99
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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/
Preview a sample Build Kit No email needed
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 键来: map the core Reference 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
Expand database with user submissions and community contributions.
Assumption to check: Limited shortcut database compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to create and save their own shortcuts.
Assumption to check: Lack of customization options
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline access through local storage.
Assumption to check: No offline access to shortcuts
Validate with people who use this workflow before building.
Hypothesis 4
Enhance design with modern UI principles and user feedback.
Assumption to check: Basic UI/UX design
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
键来 — 极简自定义，打字更自在 「键来」是一款为追求简洁与个性的你打造的 iOS 风格输入法。它不仅拥有与系统输入法一致的极简体验，更让你自由掌控每一个细节——从整体主题到空格键样式，打造 属于你的专属键盘 。 【极简设计，原生体验】 延续 iOS 系统输入法的清新简洁风格，零学习成本，上手即用。让打字回归纯粹，界面干净，响应流畅。 【全主题自定义，随心换肤】 支持 完全自定义键盘主题 ！无论是颜色、字体、按键样式，还是背景图片，一切由你决定。打造个性输入界面，每天都有新感觉。 【空格键 DIY，细节控福音】 别以为空格键只能“按”——在「键来」里，你可以单独设置它的样式、颜色、甚至添加个性化元素。让每一次轻触都充满你的风格。 专为 iPhone/iPad 优化 深度适配 iOS 生态，支持多语言输入，智能联想，打字又快又准。极简但不简单，个性而不花哨。 如果你厌倦了千篇一律的输入法，想要一个既熟悉又独一无二的键盘， 键来 就是你的不二之选。 现在就下载「键来」，定义你的输入方式！
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
react-native-async-storage
react-native-clipboard
react-native-elements
BUILD KIT DIFFICULTY
Advanced
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.
