App Overview

MarketLens: Market Scanner icon

MarketLens: Market Scanner

Roger Maragh · Business

The whole US market, one lens

$3.99

PRICE
$3.99
No 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's included16 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.

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.

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

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for MarketLens: Market Scanner: map the core Business 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

Competitive pricing with generous free tier

Assumption to check: Expensive subscription

Validate with people who use this workflow before building.

Hypothesis 2

Focus on most-requested features first

Assumption to check: Missing features

Validate with people who use this workflow before building.

Hypothesis 3

Optimize for 60fps, fast load times

Assumption to check: Poor performance

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

The whole US market, one lens. MarketLens opens to a brief on what changed — for the names you follow and for the market as a whole — then hands you the tools to dig in. MARKET BRIEF — YOUR DAILY READ • Opens on breadth and mood, badged for open, pre-market, after hours or closed • A rail of every name today's scans surfaced, and why • Earnings warnings for watched names before the report • Volatility shifts, confluence flags and setups on names you follow • Then the market: breadth, movers, sector rotation, unusual volume, WSB's top ticker, large caps reporting this week • Optional morning brief notification, assembled on-device — nothing leaves your phone MARKET PULSE • The tape at a glance — S&P, Nasdaq, Dow, Russell and VIX, with futures out of hours • The ten busiest names in any sector, by turnover rather than a percentage pop • Economic calendar: what's due, rated by how much it actually moves the market • Share the tape as a card — facts only, with the disclaimers printed on it SEASONS • A wash behind every screen: Spring, Summer, Fall, Winter — or Auto, which follows the calendar MARKET FILTERS • Every US stock & ETF — price, volume, % change, cap, sector • Sector heat map — tap a sector to filter the whole market to it • Sort by any column — search every ticker SCREENS THAT DO THE THINKING • Smart screens: Momentum, Unusual Volume, Breakout, Oversold, Lottos, Movers • Community buzz: most-mentioned tickers on r/wallstreetbets • Filter by type, price, volume, cap and sector — save and share presets ETF X-RAY • See inside any fund: holdings, weights, concentration ("Top 10 = 45% of QQQ") • One tap turns its holdings into a live screen you can sort and save GO DEEP ON ANY SYMBOL • Candles from 1-minute to 1 year — pinch to zoom • Overlay buy/sell signals (MACD crossovers) with one tap • RSI and MACD, computed on-device for any timeframe • Analyst targets: average, range, implied upside and ratings • Share trade odds: model-implied probability of being higher in 1–12 weeks • VWAP on intraday charts — where the money actually traded today • Recent news headlines with color-coded sentiment • Upcoming earnings date and timing on the page MARKET RECON — WHERE THE SIGNALS AGREE • Scans StockTwits and r/wallstreetbets trending, plus the day's movers • Only names where unusual volume, social lean and price action agree • Sentiment measured against the crowd's own baseline: "71% bullish · crowd 93%" • Conviction score, bull/bear split, and the drivers behind it TOP PICKS • Scans 30+ liquid names for defined-risk credit spreads • Set a minimum win estimate — ranked by expected value per dollar risked • Every pick clears a liquidity floor and a credit-to-width floor • Each setup draws its payoff shape to scale OPTIONS, DEMYSTIFIED • Nearest contracts — by liquidity, spread and closeness to the money • Win estimates per contract: Black-Scholes probability of profit • Filter by win-rate bands, or switch to Credit Spreads mode LEARN AS YOU GO • 132 tips across options, risk, mechanics, earnings, psychology, charts, process • A tip of the day — swipe it for another, or browse the searchable library • Facts and arithmetic only — never a recommendation ON YOUR HOME & LOCK SCREEN • Widgets in three sizes — your brief without opening the app • Lock Screen widgets: mood and the day's top line at a glance • Tap any widget line to open that symbol, not just the app • Ask Siri for your market brief, hands-free • Widgets carry the market's mood and the season, like the app does • A real iPad sidebar layout, not a stretched phone STAY ON TOP • Price alerts, plus a watchlist refreshing every ~20 seconds THE HONEST PART MarketLens is a screening and research tool, not a broker and not an advisor. Every probability is a labeled model estimate — not a prediction or recommendation. Quotes may be delayed. Community-mention data reflects chatter, not analysis. Nothing here is investment advice; always do your own research.

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
Supabase
RevenueCat
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.