Best Prediction Market Apps Compared
A practical comparison of the leading prediction market apps and which one fits your goals.
By Top Prediction Markets EditorialReviewed October 30, 20264 min read
Answer first
The best prediction market app depends on what you trade and how you prefer to interact. Kalshi is a regulated, USD-settled exchange with event contracts; Polymarket and other web3 platforms use on-chain pools and crypto; Manifold and PredictIt focus on community and politics. Choose by market coverage, settlement currency, fees, and how much liquidity you need.
What prediction market apps let you do
In simple terms, a prediction market app lets users buy contracts that pay a fixed amount if an event happens. A Yes contract — an event contract that pays $1 if the event happens — is the most common form. Prices you see are the market's implied probability that the event will occur.
The key thing to know is that platforms differ along a few practical lines: whether markets are fiat or crypto-settled, whether they use an order book or automated pools to price trades, what topics they cover (politics, macro, tech milestones, niche communities), and how they charge fees.
Side-by-side comparison: features, mechanics, and coverage
Below is a compact comparison of the major apps people look at for real-money prediction markets. Rows show the typical mechanics, settlement currency, broad market focus, fees, and where you can access them.
| Platform | Mechanics | Settlement | Market focus | Typical fees | Access / notes |
|---|---|---|---|---|---|
| Kalshi | Regulated exchange, order-book style markets | USD | Macro, economic, scheduled events | Platform and transaction fees; explicit per-trade fee model | US-facing, CFTC-regulated exchange |
| Polymarket | On-chain automated market maker (AMM) pools | Crypto (often USDC/crypto) | Politics, macro, timely events | Protocol fee + on-chain gas when applicable | Global access varies; wallet required |
| Manifold Markets | Peer-driven markets, simple AMM or order-style mechanisms | USD (site balances) | Tech, forecasting community, niche topics | Small platform fees; occasional market creator fees | Web-native community forecasting |
| PredictIt | Order-book style for political markets (operator-run) | USD | US political markets | Per-trade fees and small settlement fees | Availability and rules have changed over time; check current status |
| Augur / Gnosis (Omen) | Decentralized markets using AMMs | Crypto | Broad, including crypto-native events | Protocol fees + gas | On-chain, requires crypto wallet |
The table simplifies many details. If a platform matters to you for a single feature (for example, fiat settlement or strict regulation), prioritize that row when choosing.
Order book vs pooled markets: the practical difference
Here’s the basic idea. Order-book platforms match buyers and sellers directly: if you place an order, it sits until someone takes the other side. Pool-based platforms use an automated market maker (AMM) that reprices as people trade. Both can quote a price for a Yes contract; the user experience differs.
The key practical differences:
- Liquidity and price stability: Order books can offer tight spreads when there are active counterparties. Pools always provide immediate liquidity, but the price impact grows with trade size.
- Fees and costs: Pools often embed fees in the pricing curve; order books have explicit maker/taker or transaction fees.
- Settlement friction: On-chain pools may require crypto wallets and pay gas fees; order-book platforms can settle in USD and move money through bank rails.
A simple example for a beginner trade: if a Yes contract costs 62¢ and pays $1 if the event happens, buying one contract costs $0.62. If the event happens, the contract pays $1, so the gain before fees is $0.38. If the event does not happen, the contract expires at $0, so the loss is $0.62.
Common mistake: assuming low price always means low cost. A platform with high spreads or embedded fees can make a seemingly cheap contract expensive to enter or exit.
How Kalshi, Polymarket, Manifold, PredictIt and Robinhood compare at a glance
-
Kalshi: The key thing people pick Kalshi for is regulated, USD-based event contracts and a familiar exchange experience. Good for macro calendars and scheduled economic events where fiat settlement matters.
-
Polymarket: Polymarket uses on-chain AMMs and often attracts fast-moving political and macro markets. Expect crypto settlement and the need to manage wallet and gas considerations.
-
Manifold Markets: Manifold is community-focused, often used by forecasters and hobbyists. It’s simple, social, and covers niche questions that larger exchanges may not list.
-
PredictIt: Historically a hub for political markets, PredictIt’s availability and rules have shifted due to legal and regulatory changes. It remains a go-to for US political questions when it’s operating under current rules.
-
Robinhood (notes): Robinhood has explored prediction-like features and experiments, but it is not a primary prediction-market exchange in the way Kalshi or Polymarket are. If Robinhood offers prediction features in your region, they may be limited and experimental; check the platform for current offerings.
Which app fits which reader
- You want USD settlement and formal regulation: consider Kalshi.
- You want the widest or fastest political opinion flow and don’t mind crypto: consider Polymarket or on-chain options.
- You want community, niche questions and a social forecasting environment: consider Manifold.
- You focus only on US politics and want a dedicated political market site (and it’s available): consider PredictIt.
- You want a casual, low-friction experience inside a mainstream brokerage: check whether Robinhood offers prediction features where you are, but verify scope and limits.
Think about three small priorities in this order: market coverage (does the platform list the events you care about?), settlement currency and friction (USD vs crypto), and liquidity/fees (can you place the trade size you want without big slippage?).
Where to go next
Frequently asked questions
Which app is best for political markets?
PredictIt and Polymarket are commonly used for political markets; PredictIt focuses on US politics when available, while Polymarket hosts global political events but uses crypto settlement.
Can I withdraw my winnings to USD?
It depends on the platform. Kalshi and PredictIt typically settle in USD; on-chain platforms like Polymarket usually settle in crypto and require converting to fiat separately.
Are prediction markets legal?
Rules vary by location and platform. See our dedicated guide on whether prediction markets are legal in the US.
How do fees generally work on these apps?
Fees vary: order-book exchanges often charge per-trade or maker/taker fees, while AMM pools embed fees into price curves and may add on-chain gas costs.
What if there’s no liquidity for a market I want to trade?
Low liquidity means wide spreads or large price impact. Consider smaller trade sizes, waiting for more liquidity, or choosing a platform with AMM pools that guarantee immediate execution (at the cost of price movement).
Related guides
Beginner Guide
How to Read Prediction Market Prices
Learn what a prediction market price represents, how to read it as an implied probability, and what practical things (like spreads and liquidity) change how you should use that number.
Beginner Guide
How Do Prediction Markets Work?
Prediction markets let people buy and sell contracts that pay out if an event happens. Prices reflect the market’s collective forecast and update as new information arrives.
Beginner Guide
What Is Implied Probability?
Implied probability converts a prediction market price into a percentage chance. Learn what it represents, how to calculate it, and a simple buy-to-resolution example.