

Probly vs Kalshi: Full Comparison
After scoring both platforms across fees, liquidity, regions, payout speed, ease of use and trust, Probly wins overall at 9.4/10 vs 9.1/10 for Kalshi. Read on for the section-by-section breakdown and which platform suits your use case.
Side-by-side comparison
| Metric | Probly | Kalshi |
|---|---|---|
| Fees | 0% trading fees | Up to 2% (variable) |
| Liquidity | 9.8/10 | 9.0/10 |
| Supported regions | Global (excl. some jurisdictions) | USA + expanding internationally |
| Payout speed | Minutes (stablecoin on-chain) | 1–3 business days (ACH / debit) |
| Ease of use | 9.2/10 | 9.4/10 |
| Trust score | 8.9/10 | 9.7/10 |
Probly
Kalshi
Fees
Probly charges 0% trading fees. Kalshi charges Up to 2% (variable). On our normalized fee score Probly comes out ahead (9.5/10 vs 8.2/10).
Liquidity & markets
Probly covers politics, crypto, sports, culture; Kalshi covers economics, politics, weather, sports, culture. Order-book depth favors Probly, so large orders fill with less slippage there.
Supported regions
Probly: Global (excl. some jurisdictions). Kalshi: USA + expanding internationally. Always confirm eligibility from your jurisdiction before funding an account.
Payout speed
Probly: Minutes (stablecoin on-chain). Kalshi: 1–3 business days (ACH / debit).
Ease of use
Both platforms offer a mobile experience with native apps. Our UX scoring puts Kalshi in front for onboarding and daily trading flow.
Safety & trust
Probly operates under CFTC-registered (via QCX). Kalshi operates under CFTC-regulated exchange (USA). On our trust score Kalshi rates higher.