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
One Stock Widget
One Stock Widget puts your most important investment right on your home screen
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 One Stock Widget: 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
Add more advanced analytics and insights.
Assumption to check: Limited stock tracking features compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Introduce sharing features for stocks and news.
Assumption to check: No social sharing options.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize widget appearance and data displayed.
Assumption to check: Lack of customization options for widgets.
Validate with people who use this workflow before building.
Hypothesis 4
Implement alerts for significant price movements.
Assumption to check: No notifications for stock price changes.
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
One Stock Widget puts your most important investment right on your home screen. No more opening apps, logging in, or searching through portfolios. Just glance at your widget and instantly see your stock's current price and your portfolio value. Designed for focused investors who want to track a single stock position without distractions, One Stock Widget delivers the information you need in a beautiful, easy-to-read format. **Key Features:** • **Live Stock Prices** - Real-time price updates for any US stock symbol • **Portfolio Value Display** - See your total position value at a glance with large, bold numbers • **Price History Chart** - Visual 15-day trend chart shows you where your stock is heading • **Multi-Currency Support** - View your portfolio value in USD or Australian Dollars with automatic currency conversion • **Color-Coded Performance** - Green for gains, red for losses - understand your position instantly • **Beautiful Widget Design** - Clean, modern interface that looks great on any home screen • **Smart Data Caching** - Efficient updates that respect your battery life • **Offline Support** - Cached data ensures you always see your last known values **Perfect For:** • Long-term investors tracking a core holding • Employees monitoring company stock • Day traders focused on a single position • Anyone who wants quick access to stock information without opening multiple apps **Simple Setup:** 1. Enter your stock symbol (AAPL, GOOGL, TSLA, etc.) 2. Input how many shares you own 3. Choose your preferred currency 4. Add the widget to your home screen That's it! Your personalized stock widget is ready to keep you informed throughout the day. One Stock Widget respects your privacy. All your configuration data stays on your device. No account required, no data collection, no ads. Whether you're tracking Apple, Tesla, Microsoft, or any other US-listed stock, One Stock Widget gives you the focused, distraction-free experience you deserve. Stop scrolling through complex portfolio apps for a simple price check. Get One Stock Widget and see your investment status in seconds.
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
Zustand
@react-navigation/native
axios
react-native-reanimated
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.
