What is the best Probly alternative overall?

Kalshi — it scores 9.1/10 across fees, liquidity, ease of use and trust, and is our top pick for most traders leaving Probly.

Are these Probly alternatives regulated?

Regulation varies: Kalshi — CFTC-regulated exchange (USA); Polymarket — CFTC-registered (via QCX); Manifold Markets — Play-money (US charity spin-off for cash).

Best Probly alternatives in 2026

El mayor mercado de predicciones del mundo

Top pick: Kalshi

If you want the closest drop-in replacement for Probly, Kalshi (9.1/10) is the strongest alternative on fees, liquidity and trust. Below we rank every viable option and show a side-by-side comparison against Probly.

Visitar sitio — Kalshi Probly vs Kalshi

Probly vs the alternatives

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

Probly

9.4/10 · 0% trading fees

Global (excl. some jurisdictions) · CFTC-registered (via QCX)

Kalshi

9.1/10 · Up to 2% (variable)

Review →

USA + expanding internationally · CFTC-regulated exchange (USA)

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)

◉

Insight Prediction

7.1/10 · Low variable fees

Review →

Global (varies) · Sweeps-model / crypto

Ranked: the best Probly alternatives

1
Kalshi
9.1/10
El hogar regulado del trading de eventos en EE.UU.
Better than Probly for: smoother UX, stronger trust & regulation.
Visitar sitio — Kalshi Full Kalshi review Compare with Probly
2
Polymarket
8.8/10
El mayor mercado de predicciones del mundo
Better than Probly for: regional availability and platform variety.
Visitar sitio — Polymarket Full Polymarket review Compare with Probly
3
●
Manifold Markets
8.7/10
Mercados comunitarios sobre cualquier cosa
Better than Probly for: lower fees, wider market variety.
Visitar sitio — Manifold Markets Full Manifold Markets review Compare with Probly
4
★
Metaculus
8.6/10
Pronósticos serios para preguntas serias
Better than Probly for: lower fees, stronger trust & regulation.
Visitar sitio — Metaculus Full Metaculus review Compare with Probly
5
◈
Zeitgeist
7.3/10
Mercados descentralizados en Polkadot
Better than Probly for: regional availability and platform variety.
Visitar sitio — Zeitgeist Full Zeitgeist review Compare with Probly
6
◇
PredictIt
7.2/10
El clásico mercado político estadounidense
Better than Probly for: regional availability and platform variety.
Visitar sitio — PredictIt Full PredictIt review Compare with Probly
7
◉
Insight Prediction
7.1/10
El retador de Polymarket y Kalshi
Better than Probly for: regional availability and platform variety.
Visitar sitio — Insight Prediction Full Insight Prediction review Compare with Probly

Who should choose which

Choose Kalshi if…

Regulación CFTC
Depósitos en USD
App excelente

Choose Polymarket if…

Máxima liquidez
Sin comisiones
Miles de mercados

Choose Manifold Markets if…

Gratis
Cualquiera crea mercados
Enorme variedad

Frequently asked questions

Traders leave Probly for a few reasons: different regional availability (Global (excl. some jurisdictions)), fee structure (0% trading fees), or a preference for a different regulatory model (CFTC-registered (via QCX)). The alternatives below solve at least one of those.