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
Penny Stocks Pro
This is the PRO version of our free penny stock app
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
130 ratings · Top 15%
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.
Build your own version
Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included13 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 Penny Stocks Pro: 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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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
Integrate with additional data providers for comprehensive coverage.
Assumption to check: Limited stock market data coverage
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the alert creation process with templates.
Assumption to check: Alerts can be confusing to set up
Validate with people who use this workflow before building.
Hypothesis 3
Provide clearer explanations of premium features before purchase.
Assumption to check: In-app purchases may not be clear
Validate with people who use this workflow before building.
Hypothesis 4
Optimize data loading and caching strategies.
Assumption to check: Performance issues during peak trading hours
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
This is the PRO version of our free penny stock app. The only difference is that there is no ads in this pro version. You can get the free version here. https://itunes.apple.com/us/app/penny-stocks-gainers-losers/id1161253251 Penny Stock App for iPhone is use to find hot penny stocks ideas. Penny Stocks allows a trader to find daily top penny stocks gainers and losers. This penny stocks app does not suggest which penny stocks to buy, it lists penny stocks to watch. You will need to decide for your own which penny stocks to trade. Penny Stocks are stocks that are trading on the NYSE, NASDAQ, AMEX. This Penny Stocks app does not include stocks from the OTCBB penny stocks. You can filter penny stocks by stock price and volume. You can search for stocks under $5, $2 and $1, and you can search for penny stocks by volume. You will see the biggest penny stock gainers and losers of the day. You will find the top 100 most active penny stocks each day with our penny stocks app. Traders will see penny stock news for each stock symbol and penny stock charts. The penny stock app uses stock charts from Finviz. NOTE: Penny Stocks App is based on end of day data, not live data. The data is updated at 6:30PM EST on every trading day. This is not a penny stock alert app, so you won't get any stock alert from us. You will use our penny stocks app to do research and manually add stocks to your watchlist. Majority of the stocks are from nasdaq exchange because they have the most penny stocks available other than OTC stocks. Please keep in mind penny stocks are risky stocks to trade, as they can go up or down very quickly. You can make a lot money trading penny stocks when you do it right. It is much easier for a $2 stock to go up to $4 than for a $200 stock to go up to $400. However, there are a lot of risk involved when you trade penny stocks as they are very volatile. A stock that you buy for $2, may go up to $4, but it can also go bankrupt. Disclaimer: Our Penny Stock App does not endorse or suggest any of the securities which are returned in any of the searches or filters. They are provided purely for informational and research purposes. Our Penny Stock App does not recommend particular securities. Our Penny Stock App shall not be liable for any errors or delays in the data, or for any actions taken based on the data. Users should always conduct their own research and due diligence and obtain professional advice before making any investment decision. Our Penny Stocks App will not be liable for any loss or damage caused by a user reliance on information obtained in the App.
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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
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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.
