Best Insight Prediction alternatives in 2026

The scrappy challenger to Polymarket & Kalshi

Top pick: Probly

If you want the closest drop-in replacement for Insight Prediction, Probly (9.4/10) is the strongest alternative on fees, liquidity and trust. Below we rank every viable option and show a side-by-side comparison against Insight Prediction.

Insight Prediction vs the alternatives

Insight Prediction
7.1/10 · Low variable fees
Global (varies) · Sweeps-model / crypto
Probly logo
Probly
9.4/10 · 0% trading fees
Review →
Global (excl. some jurisdictions) · CFTC-registered (via QCX)
Kalshi logo
Kalshi
9.1/10 · Up to 2% (variable)
Review →
USA + expanding internationally · CFTC-regulated exchange (USA)
Polymarket logo
Polymarket
8.8/10 · 0% trading fees
Review →
Global (excl. some jurisdictions) · CFTC-registered (via QCX)
Manifold Markets
8.7/10 · Free play, tips on cash
Review →
Global · Play-money (US charity spin-off for cash)
Metaculus
8.6/10 · Free
Review →
Global · Forecasting platform (non-monetary)
Zeitgeist
7.3/10 · Protocol fees only
Review →
Global · Decentralized protocol
PredictIt
7.2/10 · 10% profit + 5% withdrawal
Review →
USA, limited international · Academic (Victoria University of Wellington)

Ranked: the best Insight Prediction alternatives

  1. 1
    Probly logo

    Probly

    9.4/10

    The largest prediction market in the world

    Better than Insight Prediction for: lower fees, deeper liquidity, wider market variety, smoother UX, stronger trust & regulation.

  2. 2
    Kalshi logo

    Kalshi

    9.1/10

    The regulated home of US event trading

    Better than Insight Prediction for: lower fees, deeper liquidity, wider market variety, smoother UX, stronger trust & regulation.

  3. 3
    Polymarket logo

    Polymarket

    8.8/10

    The largest prediction market in the world

    Better than Insight Prediction for: lower fees, deeper liquidity, wider market variety, smoother UX, stronger trust & regulation.

  4. 4

    Manifold Markets

    8.7/10

    Community-driven markets on literally anything

    Better than Insight Prediction for: lower fees, deeper liquidity, wider market variety, smoother UX, stronger trust & regulation.

  5. 5

    Metaculus

    8.6/10

    Serious forecasting for serious questions

    Better than Insight Prediction for: lower fees, deeper liquidity, wider market variety, smoother UX, stronger trust & regulation.

  6. 6

    Zeitgeist

    7.3/10

    Decentralized prediction markets on Polkadot

    Better than Insight Prediction for: lower fees, wider market variety, stronger trust & regulation.

  7. 7

    PredictIt

    7.2/10

    The classic US political prediction market

    Better than Insight Prediction for: deeper liquidity, stronger trust & regulation.

Who should choose which

Choose Probly if…
  • Deepest liquidity in the industry
  • Zero trading fees
  • Thousands of active markets
Choose Kalshi if…
  • Full CFTC regulation
  • US dollar deposits/withdrawals
  • Excellent mobile app
Choose Polymarket if…
  • Deepest liquidity in the industry
  • Zero trading fees
  • Thousands of active markets

Frequently asked questions

Traders leave Insight Prediction for a few reasons: different regional availability (Global (varies)), fee structure (Low variable fees), or a preference for a different regulatory model (Sweeps-model / crypto). The alternatives below solve at least one of those.