App Overview

Kalshi: Trade Sports & Events icon

Kalshi: Trade Sports & Events

KalshiEX LLC · Finance

Kalshi is the largest federally regulated prediction market app in the U.S., where you can make money by predicting real-world events, including football, basketball, hockey, and other sports, plus crypto prices

Free · In-app purchases

OVERALL US RANK
#5
Free · all categories
REVENUE (Est)
$1.3M/mo
$775K - $1.8M
RATING
★ 4.8
661,256 ratings · Top 5%

Evidence scope: #5 is the current overall US Free chart position. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

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

// RORK SYSTEM PROMPT
Rork plan preview for Kalshi: Trade Sports & Events: 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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App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

Screenshots

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App Store description

Kalshi is the largest federally regulated prediction market app in the U.S., where you can make money by predicting real-world events, including football, basketball, hockey, and other sports, plus crypto prices. Perfect for sports, crypto, and event trading, forecasting, futures-style markets, and real-world predictions. It’s like trading stocks – but instead, you trade on events you understand. Predict whether an event will happen or not, and earn money if you’re right. Join 10M+ users trading thousands of prediction markets across finance, politics, weather, culture, sports, and more. FINANCIAL MARKETS Daily S&P 500, Dow, Nasdaq 100, Bitcoin, Gold, WTI oil, Company earnings ECONOMIC MARKETS Fed interest rates, Inflation (CPI), Jobs reports, GDP, Recession, Gas prices, Mortgage rates CLIMATE MARKETS Daily city temperatures, Hurricane strength, Tornado numbers CULTURE MARKETS Billboard 100, Netflix Top 10, Oscars, Grammys, #1 Hits HOW KALSHI WORKS Kalshi is the largest federally regulated prediction exchange where you buy and sell contracts based on event outcomes. Contracts cost between 1¢ and 99¢ and can be sold anytime. At market close, each correct contract is worth $1. TRADE SPORTS Kalshi lets you trade on real sports outcomes across football, basketball, hockey, soccer, MMA, tennis, golf, and more. Trade pro and college sports with highly liquid prediction markets. Trade live as games unfold, or combine multiple outcomes into one trade with Combos. Kalshi is a Preferred Prediction Market Exchange of the NBA, bringing official NBA data to basketball markets. HOW IS KALSHI REGULATED? Kalshi is federally regulated as a Designated Contract Market (DCM) by the Commodity Futures Trading Commission (CFTC). Kalshi’s affiliate, Kalshi Klear LLC, is a CFTC-regulated clearinghouse that holds member funds and clears trades. TRADE PERPETUALS Perpetual futures, or perps, let you trade the price of an asset without owning it. Go long if you expect the price to rise, or short if you expect it to fall. Perps have no expiration date, so you choose when to close your position. On Kalshi, you can trade perps on crypto (Bitcoin, Ethereum, Solana, XRP), metals (gold, silver, copper), oil, and U.S. stock indexes, in the same app as your prediction markets. Gold and silver perps trade 24/7. KALSHI VS. STOCKS Event contracts are direct. You trade the outcome of an event, not the future stock price of a company. In stock trading, you can be right and still lose money due to market sentiment or news. Prediction markets remove that layer. KALSHI VS. OPTIONS Event contracts are simpler. Options pricing depends on multiple complex factors. Kalshi contracts reflect straightforward event probabilities. No time decay. If the event odds stay the same, contract value stays stable. HOW MUCH MONEY DO I NEED TO START? Open and maintain a Kalshi account for free. Prediction markets require less capital than traditional trading, making it easier to diversify without risking large amounts. 18+ only. Restrictions and eligibility requirements apply. Trading event contracts and trading leveraged products, including perpetual futures, involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Not representative of overall customer performance or success. Past results are not necessarily indicative of future performance. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information. Additional perpetual contract offerings are subject to applicable regulatory review and approval, and availability may vary. Leverage amplifies both potential gains and potential losses, and losses can exceed the amount deposited. Leverage limits are determined by KalshiEX LLC or the FCM based on its own risk assessment and each customer's individual risk profile, and are subject to change.

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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

Implement a more streamlined navigation system.

Assumption to check: Users find it difficult to navigate between events and trades.

Validate with people who use this workflow before building.

Hypothesis 2

Include tutorials and FAQs to help beginners.

Assumption to check: Limited educational resources for new users.

Validate with people who use this workflow before building.

Hypothesis 3

Optimize app performance during high traffic.

Assumption to check: Some users report slow performance during peak times.

Validate with people who use this workflow before building.

Hypothesis 4

Clarify subscription options and add a trial period.

Assumption to check: In-app purchases can be confusing.

Validate with people who use this workflow before building.

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
react-native-paper
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.