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
Savvy Trader
Savvy Trader AI combines the power of ChatGPT with Savvy Trader for stocks and investing related questions.
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
615 ratings · Top 5%
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 Savvy Trader: 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
Provide advanced charting and analysis features.
Assumption to check: Limited stock analysis tools
Validate with people who use this workflow before building.
Hypothesis 2
Implement customizable notification settings.
Assumption to check: Notification overload
Validate with people who use this workflow before building.
Hypothesis 3
Simplify subscription tiers and provide clearer value.
Assumption to check: Complex paywall structure
Validate with people who use this workflow before building.
Hypothesis 4
Enhance app stability with thorough testing.
Assumption to check: Occasional app crashes
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
Savvy Trader AI combines the power of ChatGPT with Savvy Trader for stocks and investing related questions. Track all your stock and crypto investments in one place using Savvy Trader. Create virtual portfolios of your favorite stocks and crypto for yourself or share them with others. When you choose to share your portfolio, you can do so for free or charge a monthly subscription fee and earn recurring income by sharing your portfolio. Discover and subscribe to other user portfolios based on portfolio performance, popularity or investment style. When you subscribe to a portfolio, you will be notified of every trade via SMS, email, or push notifications, allowing you to stay aware of your favorite investor's trades and comments. Use Savvy Trader to get realtime stock quotes on any stock and see who has been buying or selling the stock and why. Savvy Trader is also an excellent educational tool as you can use it as a stock market simulator or paper trading app to safely simulate investing in the stock and crypto markets without using any actual money. Best of all, it's all free and no ads! https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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
Axios
Zustand
react-native-chart-kit
BUILD KIT DIFFICULTY
Expert
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.
