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
投資Talk君
美联储观察员 | 资管打工人 | CRYPTO机构宏观顾问
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.1
28 ratings · Top 30%
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 included19 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 投資Talk君: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
美联储观察员 | 资管打工人 | CRYPTO机构宏观顾问 ◼ 2016年：进入金融行业，深耕全球宏观与资产管理领域，积累丰富投资实战经验。 ◼ 2019年：开启个人投资之路，专注于个股基本面分析、宏观趋势研判及技术指标交易。 ◼ 2021年：深度参与加密市场，为CRYPTO机构提供宏观研究与投资策略顾问服务。 ◼ 2021年：创立YouTube频道【投资TALK君】，目前拥有15.6万订阅者，已发布超过1,200支影片，致力于为观众提供专业且实用的投资知识。 ◼ 2025年：正式与CMoney合作，推出【投资TALK】APP，分享个人在美股投资的策略与见解。 【软件功能特色】 ◼三大策略 × 精选持股 × VIP 深度解析，助你提升投资胜率！ ◼ 专属社群 订阅用户专享与TALK君互动，获取最新观点，投资路上不再孤单！ ◼独家精选清单 TALK君亲自筛选，值得长期关注的优质股票，让投资更有方向！ ◼交易持仓清单 买卖关键观察点，持股占比分享，轻松追踪投资动态！ ◼稳定获利策略 适合风险承受度较低、希望稳健增值的投资者，让资产长期增长更安心！ ◼成长价值策略 适合风险承受度较低、希望稳健增值的投资者，让资产长期增长更安心！ 适合追求成长机会，但仍关注基本面稳健性的投资者，把握未来潜力股！ ◼高速动能策略 适合短线交易者，精准捕捉市场热点机会，提高资金利用效率！ ◼学习专区 VIP专属：每月至少3部深度投资视频，由TALK君分享独家市场见解，助你进阶投资高手！
Written user reviews are not shown here. Check current App Store reviews >
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 create custom categories and tags for their investments.
Assumption to check: Limited customization options for tracking investments
Validate with people who use this workflow before building.
Hypothesis 2
Offer detailed performance reports and alerts for significant market changes.
Assumption to check: Lack of advanced analytics features
Validate with people who use this workflow before building.
Hypothesis 3
Introduce gamification elements like badges or rewards for active users.
Assumption to check: Community engagement feels low
Validate with people who use this workflow before building.
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-native-chart-kit
Zustand
react-query
expo-router
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.
