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
余生 - 恋爱一百件小事
"余生" 是一款为情侣打造的恋爱记录类App
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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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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 余生 - 恋爱一百件小事: map the core Social Networking 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
Add more interactive features like polls, quizzes, and events.
Assumption to check: Limited user interaction features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement algorithms to enhance post visibility based on user preferences.
Assumption to check: Posts may lack visibility without algorithms
Validate with people who use this workflow before building.
Hypothesis 3
Improve privacy settings to allow users to control their data and visibility.
Assumption to check: Inadequate privacy settings for user safety
Validate with people who use this workflow before building.
Hypothesis 4
Optimize media upload and display for faster loading times.
Assumption to check: Slow load times for media-rich posts
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
"余生" 是一款为情侣打造的恋爱记录类App - 小事 应用内内置了100件恋人小事，可以记录每件小事的甜蜜回忆，且您可以自定义添加自己的小事。 - 纪念日 记录你们之间的纪念日，在到来之前将提醒你，并且可以记录纪念日所发生的甜蜜记录到小事中。 - 足迹 通过已记录的小事中的地址，在地图上为您显示旅行的足迹。 - 同步 所有数据都存储在云端，不用担心数据丢失。 现在开始记录下你们之间相爱的甜蜜时刻吧！ 隐私协议：https://pdfinity.ultraifun.com/agreements/privacy_love.html 用户协议: https://pdfinity.ultraifun.com/agreements/termsOfUser_love.html
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
Supabase
Firebase
Socket.IO
Zustand
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.
