Polymarket processed roughly $7 billion in monthly volume in February 2026, but it's not the only place to trade on real-world outcomes anymore. Sportsbooks bolted prediction hubs onto their apps, crypto exchanges launched their own order books, and a CFTC-regulated incumbent quietly overtook Polymarket in total volume. If you've maxed out your Polymarket positions or you're locked out because of a state restriction, there are now at least a dozen serious apps like Polymarket worth your attention.
This list ranks them by what actually matters when you're moving real money: fee structure, market depth, mobile execution, and regulatory footing. Polymarket runs on USDC settlement via Polygon with no US federal license outside its QCEX-backed CFTC pathway, which is why alternatives with different settlement rails and licensing setups matter for traders in restricted states. For the full mechanics of how these markets price outcomes, see our guide on how prediction markets work.
We built this ranking from public volume data, published fee schedules, and hands-on account testing across each platform. If you want the exhaustive version with every platform on the market, our best prediction market apps hub covers the full field. Here we're narrowing to the apps that function as genuine Polymarket substitutes or complements.
Kalshi: The CFTC-Regulated Volume Leader
Rating: 4.3/5. Kalshi out-traded Polymarket in February 2026, clearing roughly $9.8 billion in monthly volume against Polymarket's $7 billion. It's the only platform on this list operating as a fully CFTC-regulated Designated Contract Market, which means no offshore wrapper, no geofencing workarounds, and 2025 revenue north of $260 million. It raised $1 billion in a Series E round in December 2025 at an $11 billion valuation, and it's reportedly targeting a $20 billion valuation in its next raise — the same number Polymarket is chasing.
The fee structure is where Kalshi separates itself from Polymarket's percentage-based taker fees. Kalshi charges a variable fee of around $0.02 per contract depending on the market, and idle cash sitting in your account earns roughly 4% APY instead of Polymarket's flat 0%. Settlement happens in USD, not USDC, which removes the stablecoin bridging step entirely. Read the full breakdown in our Kalshi fees explained guide and the step-by-step how to deposit on Kalshi walkthrough.
The catch is availability — Kalshi operates in 40+ states, but Arizona filed criminal charges against the company on March 18, 2026, and Nevada, Massachusetts, Maryland, and Ohio have all ruled against it in separate state-level disputes. Tennessee ruled in Kalshi's favor, which is the split you'll find across the industry right now. For a direct side-by-side against Polymarket, read our Polymarket vs Kalshi comparison, and check current legality in your state with our prediction markets legal states map.
| Kalshi | Detail |
|---|---|
| Rating | 4.3/5 |
| Monthly volume | ~$9.8B (Feb 2026) |
| Fees | ~$0.02/contract, variable |
| Settlement | USD |
| Regulation | CFTC-regulated DCM |
| Idle cash yield | ~4% APY |
Full review: Kalshi Review 2026
Robinhood Prediction Markets: Kalshi's Contracts, Familiar Interface
Rating: 4.0/5. Robinhood doesn't run its own order book. Its prediction hub is powered entirely by Kalshi's contracts, wrapped inside the Robinhood app you may already use for stocks and options. That matters practically — your Robinhood cash balance, your existing KYC, and your familiar order-entry flow all carry over, which lowers the friction of trying prediction markets for the first time.
What you're really evaluating with Robinhood is whether you'd rather trade Kalshi's regulated contracts through Robinhood's UI or through Kalshi's native app directly. Robinhood's mobile execution is smoother for casual traders, but active traders lose some of the order-book granularity that Kalshi's own interface exposes. Fees mirror Kalshi's underlying structure since it's the same contracts being routed through, so you're not paying a markup for the convenience.
This is the easiest on-ramp for anyone who finds Polymarket's crypto-wallet requirement intimidating — no USDC, no Polygon bridge, no seed phrase. For a detailed head-to-head, read Robinhood vs Kalshi and the full Robinhood Prediction Markets Review.
| Robinhood Predictions | Detail |
|---|---|
| Rating | 4.0/5 |
| Contracts | Powered by Kalshi |
| Settlement | USD |
| Wallet required | No |
| Best for | First-timers already on Robinhood |
OG (Crypto.com): The Social, Crypto-Native Alternative
Rating: 3.8/5. OG is Crypto.com's prediction market product, and it's the closest thing to a direct Polymarket competitor on crypto rails. Settlement runs through Crypto.com's existing wallet infrastructure, and the platform leans hard into social features — following other traders, seeing live position feeds, and community-driven market creation. Margin trading on positions is reportedly planned, which would be a first among the mainstream apps on this list.
The strength here is distribution. Crypto.com already has a massive existing user base with funded accounts, so OG doesn't need to solve the cold-start liquidity problem the same way a standalone app does. The weakness is depth — order books on niche markets thin out fast compared to Polymarket's, and the social layer works better for entertainment-driven markets than serious political or macro trading.
If you're already deep in the Crypto.com ecosystem and want exposure to prediction markets without opening a new wallet, OG is a reasonable pick. If you're coming purely for liquidity and tight spreads, Polymarket still wins that comparison. Full details in our OG Review 2026.
| OG (Crypto.com) | Detail |
|---|---|
| Rating | 3.8/5 |
| Focus | Social trading, crypto-native |
| Margin trading | Planned |
| Best for | Existing Crypto.com users |
PredictStreet: The European, FIFA-Backed Challenger
Rating: unrated (recent launch). PredictStreet operates under a Gibraltar license and positions itself as the first prediction market built specifically for European users, which is a real gap Polymarket doesn't fill given its US-centric compliance posture. Its highest-profile move is a partnership tied to the FIFA World Cup 2026, giving it a built-in sports catalog heading into the summer tournament.
The Gibraltar license is meaningful because it puts PredictStreet under a recognized gambling and financial regulator rather than operating in the gray zone many crypto-native platforms sit in. That's attractive if you're a European trader who's been geofenced out of Polymarket or Kalshi entirely. Onboarding is straightforward — see our how to sign up on AdiPredictStreet guide for the exact steps.
Liquidity is the obvious limitation for a pre-launch-stage platform going up against a $63.5 billion industry. Depth on anything outside World Cup markets is thin right now, and you should expect wider spreads than Polymarket or Kalshi on the same event. We compared the two directly in PredictStreet vs Polymarket, and the full breakdown is in our PredictStreet Review 2026.
| PredictStreet | Detail |
|---|---|
| Rating | Unrated (pre-launch) |
| License | Gibraltar |
| Signature market | FIFA World Cup 2026 |
| Best for | European traders, World Cup exposure |
DraftKings Predictions: Sportsbook DNA, New Wrapper
Rating: not independently rated. DraftKings built its prediction product on top of an already massive sportsbook user base, which means it inherits deep liquidity on anything sports-adjacent from day one. If your interest in apps like Polymarket is specifically about betting on game outcomes, championship odds, or player props framed as prediction contracts, DraftKings is worth a look precisely because it doesn't need to build sports liquidity from scratch.
Where it falls short of Polymarket is breadth. Polymarket's catalog spans politics, macroeconomics, crypto prices, and entertainment alongside sports; DraftKings' prediction product skews almost entirely toward the sports categories it already dominates as a sportsbook. If you want a market on Fed rate decisions or a Senate race, you're not finding it here.
This makes DraftKings less a Polymarket replacement and more a specialized tool for traders who care primarily about sports outcomes and already trust the DraftKings brand. Full review at DraftKings Predictions Review 2026, and for a broader look at how sports-first platforms compare, see best prediction markets for sports betting.
FanDuel Predicts: The Other Sportsbook Entrant
Rating: not independently rated. FanDuel Predicts mirrors DraftKings' playbook almost exactly — an existing sportsbook audience, deep sports liquidity, and a prediction-contract wrapper around markets it already priced as a bookmaker. The distinction between the two mostly comes down to which sportsbook you already use and trust with deposits.
Where FanDuel has an edge is in live, in-game market responsiveness, since its odds infrastructure was built for real-time sports betting long before prediction markets existed as a separate category. That responsiveness matters if you're trading in-game momentum shifts rather than holding pre-game positions. It's a narrower use case than Polymarket's, but it executes that narrow case well.
Neither FanDuel nor DraftKings is trying to be a Polymarket clone — they're sportsbooks extending into adjacent territory. If sports is 80%+ of your trading interest anyway, one of these two may serve you better than a general-purpose platform. Full details in the FanDuel Predicts Review, and see our prediction markets vs sports betting breakdown for how the mechanics actually differ from a traditional sportsbook.
Opinion: The Macro-Focused Niche Player
Rating: 3.5/5. Opinion carves out a specific niche — macroeconomic and policy-driven markets — rather than trying to cover the entire event universe Polymarket does. If your trading thesis leans toward inflation prints, Fed decisions, or GDP data rather than sports or entertainment, Opinion's curated catalog can be more efficient to navigate than wading through Polymarket's much larger, broader market list.
The tradeoff is obvious: a smaller catalog means less total liquidity and fewer markets to diversify across. Opinion isn't trying to be a one-stop shop, and traders who want variety in a single app will find it thin. But for macro-focused traders who resent scrolling past hundreds of sports and pop-culture markets to find the three that matter, the focus is a feature, not a bug.
Full details in the Opinion Review 2026.
| Opinion | Detail |
|---|---|
| Rating | 3.5/5 |
| Focus | Macro and policy markets |
| Best for | Traders who specialize in economic data |
Predict.fun: Zero Fees, BNB Chain Settlement
Rating: 3.3/5. Predict.fun runs on BNB Chain rather than Polygon, and its headline feature is zero trading fees combined with yield paid on your posted collateral — a meaningful difference from Polymarket's 0% interest on idle balances and 0.75-1.80% taker fees. For cost-conscious traders who post significant collateral and hold positions for a while, that yield can offset a real chunk of opportunity cost.
The zero-fee structure sounds like a straightforward win, but it comes with a smaller, less liquid market catalog than Polymarket's, and BNB Chain's user base is a fraction of Polygon's within the prediction market space specifically. Spreads on anything outside the most popular markets tend to be wider as a result. If you're comparing settlement rails and fee structures across chains, our guide to how to arbitrage prediction markets covers how traders exploit exactly these kinds of cross-platform pricing gaps.
Predict.fun makes the most sense for traders already comfortable on BNB Chain who want to avoid Polymarket's fee schedule and don't mind a thinner order book in exchange. Full review at Predict.fun Review.
| Predict.fun | Detail |
|---|---|
| Rating | 3.3/5 |
| Chain | BNB Chain |
| Fees | Zero |
| Yield | Paid on collateral |
Manifold Markets: Play-Money Practice, Zero Financial Risk
Rating: not independently rated, reviewed in depth separately. Manifold Markets is the outlier on this list because there's no real money involved — it runs on play-money currency, which makes it fundamentally different from every other app here. That said, it's genuinely useful for learning how order books, market-making, and outcome pricing work before you deposit real capital anywhere else.
Manifold's community also runs an enormous variety of user-created markets, often on hyper-specific or niche questions no regulated platform would ever list. If you want to understand the mechanics behind Brier score accuracy — Polymarket's markets score around 0.09, translating to roughly 94% forecasting accuracy — Manifold is a low-stakes place to see how crowd-sourced pricing converges on outcomes.
It's not a Polymarket substitute for anyone trying to make money, and it shouldn't be treated as one. Read the full Manifold Markets Review 2026 for the complete picture, including whether the play-money model has any real value beyond practice.
Master Comparison: All 12 Platforms Side by Side
| Platform | Rating | Monthly Volume | Settlement | Regulation | Best For |
|---|---|---|---|---|---|
| Polymarket | 4.5/5 | ~$7B | USDC/Polygon | CFTC pathway via QCEX | Broadest market catalog |
| Kalshi | 4.3/5 | ~$9.8B | USD | CFTC DCM | Regulated, highest volume |
| Robinhood Predictions | 4.0/5 | Kalshi-routed | USD | CFTC (via Kalshi) | Beginners, existing users |
| OG (Crypto.com) | 3.8/5 | N/A | Crypto wallet | Varies | Social/crypto-native traders |
| Opinion | 3.5/5 | N/A | N/A | N/A | Macro/policy traders |
| Predict.fun | 3.3/5 | N/A | BNB Chain | Offshore | Fee-sensitive traders |
| PredictStreet | Unrated | N/A | N/A | Gibraltar | European users, World Cup |
| DraftKings Predictions | N/A | N/A | USD | State sportsbook licenses | Sports-only traders |
| FanDuel Predicts | N/A | N/A | USD | State sportsbook licenses | Live in-game sports |
| Manifold Markets | N/A | N/A | Play money | None | Learning mechanics risk-free |
How to Choose the Right Polymarket Alternative
Start with what you're actually trading. If sports is 80%+ of your interest — which lines up with the industry as a whole, since sports accounts for over 80% of total prediction market volume — DraftKings, FanDuel, or Kalshi's sports contracts will serve you better than a general-purpose platform stuffed with markets you'll never touch. If politics, macro data, or crypto-price markets are your focus, Polymarket's breadth or Kalshi's regulated depth still wins.
Regulatory status should weigh heavily if you live in a restricted state. Check the current prediction markets legal states map before assuming any of these platforms will accept you, since the legal landscape shifts state by state on a near-monthly basis in 2026. If you're weighing federal exposure generally, our guide on whether prediction markets are legal in the US covers the CFTC's current posture and Chairman Selig's push for federal preemption.
Finally, factor in taxes before you factor in fees. Kalshi issues a 1099-MISC; Polymarket issues nothing globally, leaving you to self-report. The 90% gambling loss cap under OBBBA kicks in for tax year 2026, filed in 2027, and the IRS still hasn't issued formal guidance on how prediction market winnings should be classified. Read the full breakdown in our prediction market taxes guide before you assume any platform's tax treatment is simpler than another's.
Serious traders running strategies across multiple books — arbitrage, hedging, or bot-driven execution — increasingly don't pick just one app. Our guide on prediction market strategies that actually work and our breakdown of AI trading bots eating prediction markets alive both cover why running Polymarket and Kalshi in parallel, rather than choosing one, is becoming the default for anyone trading at volume.
Frequently Asked Questions
What is the best alternative to Polymarket?
Kalshi is the strongest overall alternative, since it now out-trades Polymarket in monthly volume and operates under full CFTC regulation with USD settlement. See our direct Polymarket vs Kalshi comparison for the fee and market-catalog breakdown. Robinhood is the better pick if you want Kalshi's contracts inside a more familiar mobile interface.
Are apps like Polymarket legal in every US state?
No. Availability varies significantly by state, with Arizona filing criminal charges against Kalshi in March 2026 and Nevada, Massachusetts, Maryland, and Ohio all ruling against similar platforms. Check our prediction markets legal states map before depositing, since the legal picture changes monthly.
Do I need a crypto wallet to use apps like Polymarket?
Not always. Polymarket, OG, and Predict.fun require crypto settlement (USDC or a native chain wallet), but Kalshi, Robinhood, DraftKings, and FanDuel all settle in USD with standard bank deposits. If you want to avoid crypto entirely, Robinhood is the simplest on-ramp since it routes through your existing account.
Which Polymarket alternative has the lowest fees?
Predict.fun advertises zero trading fees and pays yield on posted collateral, undercutting Polymarket's 0.75-1.80% taker fee structure. Kalshi charges a smaller, variable per-contract fee around $0.02 rather than a percentage. Full fee comparisons are in our Kalshi fees explained and Polymarket fees explained guides.
Can I use more than one prediction market app at once?
Yes, and many active traders do exactly that to exploit pricing gaps between Polymarket and Kalshi. Our guide to arbitraging prediction markets walks through the mechanics step by step. Running multiple accounts also hedges against any single platform's state-level access restrictions.
Are winnings on these apps taxed differently?
The underlying tax treatment is the same regardless of which platform you trade on — it's based on the IRS's classification, not the app. Kalshi issues a 1099-MISC while Polymarket issues no tax forms at all, leaving self-reporting entirely on you either way. See our prediction market taxes guide for the three possible treatments and the new 90% gambling loss cap starting tax year 2026.
Is Kalshi actually bigger than Polymarket now?
Yes, by monthly volume. Kalshi cleared roughly $9.8 billion in February 2026 against Polymarket's approximately $7 billion, though Polymarket still holds a slight edge in user rating and market breadth. Read our full Is Polymarket legit and safe in 2026? analysis for context on Polymarket's side of that comparison.
Which app is best for sports-only trading?
DraftKings Predictions and FanDuel Predicts both lean on existing sportsbook liquidity and cover sports far more deeply than general-purpose platforms. Kalshi's sports contracts are also strong given its overall volume lead. Our best prediction markets for sports betting guide ranks all of them side by side.
