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.
Silver Stacker Wallet — Now with Live Spot Price Refresh
$1.99 · In-app purchases
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.
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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 Silver Stacker Wallet: 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: Complex, confusing interface
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Slow bank connections
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Security concerns
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.
Silver Stacker Wallet — Now with Live Spot Price Refresh Built by a silver stacker for silver stackers, Silver Stacker Wallet is the must-have app for anyone who buys, holds, or trades physical silver. Know exactly what your stack weighs and what it is worth — instantly, accurately, and with or without an internet connection. Version 2.0 is the biggest update yet. You can now tap Refresh Price to instantly load the live silver spot price directly from our secure backend feed. The price card updates in real time, with a green or red arrow showing exactly how much the price has moved since your last refresh. And when you're offline — at a coin show, on a plane, or anywhere else — everything still works exactly as before. Your wallet, your prices, your totals. No connection required. What Makes It Different Unlike generic finance apps, Silver Stacker Wallet is built specifically for physical silver. Add any coin, bar or round by name, purity, and silver content weight. Whether you stack American Silver Eagles, Morgan Dollars, constitutional silver, kilo bars, or custom bullion, if it contains silver this app tracks it. How It Works Tap Refresh Price to load the current silver spot price from our live feed, or use the precision odometer-style scroll wheels to set any price you want manually — perfect for dealer premiums, melt value negotiations, or working offline. Then build your wallet by adding each piece you own. The app instantly calculates your total silver weight in troy ounces and your total stack value at the spot price you set. Key Features • Live spot price refresh — tap Refresh Price to instantly load the current silver spot price from our secure feed • Price change arrow — green or red arrow shows the dollar change since your last price update • Works 100% offline — full wallet tracking, manual price entry, and all calculations work without any internet connection • Set Price Manually — use the odometer wheels anytime to dial in an exact price for premiums, melt value, or barter scenarios • Add any coin, bar or round by name, purity, and silver content weight • Enter weight in troy oz or grams — all totals automatically converted to troy oz • Precision odometer scroll wheels for spot price entry up to $9,999.99 • Live total silver weight and stack value always visible • Adjust quantities anytime with stepper controls • Swipe left to edit or delete any item • Drag to reorder your wallet list • No ads, no subscriptions, no accounts Built for Real World Use Whether you are at a coin show, a pawn shop, or negotiating a private trade, Silver Stacker Wallet gives you the numbers you need in seconds. Tap Refresh Price for the live market rate, or set any price you want manually. No guesswork. No delays. Your Data Stays on Your Device All your stack data is stored locally on your device only. The only time Silver Stacker Wallet connects to the internet is when you explicitly tap Refresh Price. Nothing else is ever collected, transmitted, or shared. Stack smarter. Track better. Trade confidently. Visit us at janeric-arts.com/silver-stacker-wallet
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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.
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.