Independent Kalshi and Polymarket reviews, plus prediction market guides, election betting odds, and a free P&L calculator.
Editor's pick: Polymarket — deposit $10, get a $50 trading bonus with code WINPREDICTS (US: iPhone app, 49 states + DC).
Also recommended: Kalshi — trade $25 and get $25 with code WINPREDITCS (47 states + DC).
Mobile pick: Rebet — 100% purchase match up to $100 with code WINPREDICTS (iOS & Android, 39 states + DC).
New & noteworthy: OG by Crypto.com — earn up to $100 in bonuses with code WINPREDICTS (41 states + DC).
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading is risky. 100% loss can occur. See polymarket.com/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated exchange and clearing organization.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at kalshi.com. 18+ only. Restrictions and eligibility requirements apply. Event contract trading 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. Kalshi products are not available in all jurisdictions. See kalshi.com for more information.
Editorial independence: we earn affiliate commissions when you sign up for platforms via our links. This does not affect editorial scores or rankings. Prediction markets carry risk — never trade more than you can afford to lose.
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Updated August 21, 2026 · Affiliate links marked rel="nofollow sponsored"