PREDICTION MARKETS

Prediction credits, with cash rules attached.

Read what published programs say about eligibility, expiry, locked promotional value and withdrawable proceeds.

If you use a partner link, doddo may earn a commission. Offers have eligibility requirements; estimates are not guaranteed returns. Read each offer’s terms and risk information before taking part.

Prediction markets

Kalshi

Estimated usable valueAccount-specific

Use a valid referral link or code, verify your account, then complete the trading requirement shown in Rewards. Check the…

Referral or codeRequired by the published programReviewed2026-09-10

Review stale: confirm the current program before acting.View details 18+ or the higher age required in your jurisdiction. Eligible locations only. Trading can lose your entire stake. Promotional credits cannot be withdrawn directly.

Prediction markets

Polymarket US

Estimated usable valueAccount-specific

Join through a valid referral link or code and deposit at least $10. Confirm the current reward during signup; this link…

Referral or codeNot required by the general published programReviewed2026-09-10

Prediction markets

Novig

Estimated usable valueOn hold

Verify your identity, link a payment method and deposit at least $10. The published program is for eligible new members who…

Referral or codeNot required by the general published programReviewed2026-09-11

Paused: Novig plans are on hold while we connect authenticated live prices.View details 21+. Eligible locations only. Conversion is on hold at doddo. Trading can lose money; trade credits cannot be withdrawn directly.

GUIDES

Kalshi vs Polymarket: which fits a US user? Is Kalshi legit? What its CFTC status does and doesn't mean Kalshi alternatives: seven apps, sorted by why you are switching The best prediction market apps in 2026, compared on published terms Kalshi fees, explained with worked examples Kalshi vs Robinhood: what changes when you trade through Robinhood How does Polymarket work? Contracts, odds and withdrawals on Polymarket US Is Polymarket legit? What is legal in the US and what is not Polymarket fees, explained with worked examples

FREE TOOLS

Kalshi fee calculator Polymarket calculator

What doddo keeps separate

A public promotion is not proof that your account has the credit. Personal eligibility, current terms, market depth and settlement still need checking.