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
MammthAI Investing
Stop Guessing
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
15 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 included18 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 MammthAI 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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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
Incorporate user risk profiles to tailor recommendations.
Assumption to check: Lack of personalized investment strategies
Validate with people who use this workflow before building.
Hypothesis 2
Enhance account linking features for real-time data.
Assumption to check: Limited integration with financial institutions
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation and improve onboarding.
Assumption to check: User interface complexity
Validate with people who use this workflow before building.
Hypothesis 4
Offer more flexible pricing plans or free tiers.
Assumption to check: Subscription costs can deter users
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
Stop Guessing. Start Investing With Precision. Most investors lose money because they ignore risk and time horizon. MammthAI Investing gives you AI-powered stock signals tailored to your risk profile, investment timeline, and trading style — so every decision is aligned with your strategy. Start your 7-day free trial today. Then unlock full access for just $0.99/month (USD) — less than the cost of one bad trade. INVESTWISE — Built for Serious Investors Choose your investment horizon: • Short-Term Investing • Medium-Term Investing • Long-Term Investing Generate your investment thesis with clarity. Not emotion. TRADEWISE — Built for Active Traders Precision signals for: • Scalping • Day Trading • Swing Trading See confidence levels, stop-loss guidance, and take-profit targets — so you trade with structure, not impulse. What You Unlock Unlimited AI Stock Analysis Clear BUY, HOLD, or SELL ratings with detailed breakdowns. 7-Day AI Forecasts Predict adjusted closing prices with intelligent modeling. RiskWise Recommendations AI picks stocks based on YOUR risk tolerance. Downloadable PDF Reports Professional-grade analysis you can review anytime. Instant Sharing Share insights with your investing circle. This isn’t another stock app. It’s a decision engine for investors and traders who want an edge. Know your risk. Own your strategy. Trade and invest smarter. Start your free trial now. Privacy Policy: https://www.termsfeed.com/live/3583ef19-2d07-40b4-a116-ea865b2eae5a Application End User License agreement: 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.
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BUILD KIT DIFFICULTY
Advanced
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.
