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.
Every stock has an average price
$9.99
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
Your first Build Kit is free with a verified email.
Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Tradewinds Investing: 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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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
Assumption to check: Limited customization of investment options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: High subscription fees without in-app purchases
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of educational resources for beginners
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic analytics tools
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Every stock has an average price. Tradewinds helps you find it — and buy smarter below it. Tradewinds is the complete stock decision toolkit for iPhone. From the moment you spot a stock to the day you sell it, every tool you need is in one place — live prices, health checks, entry point targets, push alerts, a trade journal, and more. HOW IT WORKS Every stock moves above and below its long-term average price. Tradewinds calculates that average and gives you precise buy targets — from a good entry all the way down to a generational buying opportunity. When prices fall into your zone, you know exactly what to do and why. THE GREEN / YELLOW / RED SYSTEM Like a traffic light for every trade. Green means strong fundamentals and a good entry zone. Yellow means mixed signals — watch closely. Red means poor fundamentals or overpriced — avoid or wait. No guessing. No emotion. WHAT'S INSIDE — 14 TOOLS WATCHLIST & ALERTS • Live price updates — auto-refreshed on every open • Color-coded signals for every stock on your list • 3-tier push alerts — early warning, approaching, and target hit BEFORE YOU BUY • 3–5 Year Range Calculator — find historical average and entry targets • Stock Health Check — auto-filled from live data (P/E, ROE, margins, debt, market cap) • Position Size Calculator — know exactly how many shares to buy • Risk/Reward Calculator — requires a 2:1 minimum before you trade • Stop Loss Calculator — the 2% Rule and O'Neil's 7% CANSLIM rule built in • 15-Point Pre-Trade Checklist — run through before every buy FINDING IDEAS • Finviz Screener Plays — 7 pre-built trade setups ready to run • Research & News — one tap to Finviz, SEC filings, earnings history, insider trades WHILE YOU HOLD • Cost Basis Calculator — track multiple purchases, see your true average • DCA Planner — dollar-cost averaging across 4 schedules and 4 market scenarios • Dividend Income Calculator — passive income projections and yield on cost LOOKING BACK • Trade Journal — log every trade, track wins, losses, and lessons learned • Portfolio Tracker — cost basis, current value, and portfolio weight LEARN AS YOU GO • Financial Glossary — 28 plain-English definitions across 6 categories • Every tool explains the "why" behind the numbers — built for beginners and advanced traders alike WHY TRADEWINDS Finviz Elite (screener only) costs $39.50/month. TradingView Pro is $14.95/month. Stock Rover runs up to $27.99/month. Tradewinds gives you a complete decision cycle — from idea to exit — for a single one-time purchase. The app informs the decision. You make the call.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
Not assessed in a Build Kit yet.
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.