An alternative to Kalshi can be another exchange, a broker giving access to several exchanges, or a play-money forecasting platform. Those differences matter more than an unsupported “best venue” ranking. The following product facts were checked against official sources on October 8, 2026.
Polymarket US and International
Polymarket US has its own CFTC designation record. International is a separate product with different access rules. The old “US users can only use Kalshi” comparison is removed; see the product distinction.
This does not establish that either product has more depth than Kalshi on the particular contract you need. Compare matched settlement rules and executable quotes rather than a brand-wide depth claim.
PredictIt
The CFTC’s July 14, 2025 letter amended PredictIt’s conditional no-action framework, including its operating arrangement and investment limit. The former $850 cap is stale; the amended cap is tied to the individual campaign-contribution limit, then $3,500. This framework is not the same as designated-contract-market registration.
PredictIt’s September 23, 2026 fee announcement removed withdrawal fees and retained a 10% trading-profit fee. Our former fee comparison reversed the profit/withdrawal percentages and is corrected. Evaluate current contract and account terms rather than treating PredictIt as a general sports exchange.
Manifold
Manifold’s FAQ says mana is play money and cannot be converted to cash. A forecast record there can be inspected on its own terms; it does not reproduce real-money fills, fees or incentives. Good play-money calibration does not by itself validate a live execution strategy.
Robinhood is a broker layer with multiple exchange sources
The current Robinhood overview lists several exchange partners. It is no longer accurate to dismiss it as only Kalshi’s order book behind another interface. The listing exchange, broker costs and account/location restrictions must be checked for the contract in question.
ForecastEx
ForecastEx documents access through qualified FCMs. Its key information document includes an intended retail-investor description, so the earlier “institutional only” exclusion is removed. Its contract and offset mechanics should not be assumed identical to another exchange’s bid/ask resale.
Choose by the missing requirement
Identify the market you need, the allowed account route, the contract’s settlement, the executable price/quantity and total costs. A broker’s catalog is not proof of independent liquidity for every item; a forecasting game is not a cash-trading replacement.
We removed unverified claims that named competitors are dormant, failed, uniquely liquid or structurally profitable. For a comparison worksheet and official starting points, see the app comparison. For actual order-book research, use ZenHodl’s scoped sample schemas.