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

Le plus grand marché de prédiction au monde

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.

Visiter le site — 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
Le foyer régulé du trading d'événements US
Better than Probly for: smoother UX, stronger trust & regulation.
Visiter le site — Kalshi Full Kalshi review Compare with Probly
2
Polymarket
8.8/10
Le plus grand marché de prédiction au monde
Better than Probly for: regional availability and platform variety.
Visiter le site — Polymarket Full Polymarket review Compare with Probly
3
●
Manifold Markets
8.7/10
Marchés communautaires sur tout
Better than Probly for: lower fees, wider market variety.
Visiter le site — Manifold Markets Full Manifold Markets review Compare with Probly
4
★
Metaculus
8.6/10
Prévisions sérieuses pour questions sérieuses
Better than Probly for: lower fees, stronger trust & regulation.
Visiter le site — Metaculus Full Metaculus review Compare with Probly
5
◈
Zeitgeist
7.3/10
Marchés décentralisés sur Polkadot
Better than Probly for: regional availability and platform variety.
Visiter le site — Zeitgeist Full Zeitgeist review Compare with Probly
6
◇
PredictIt
7.2/10
Le marché politique américain classique
Better than Probly for: regional availability and platform variety.
Visiter le site — PredictIt Full PredictIt review Compare with Probly
7
◉
Insight Prediction
7.1/10
Le challenger de Polymarket & Kalshi
Better than Probly for: regional availability and platform variety.
Visiter le site — Insight Prediction Full Insight Prediction review Compare with Probly

Who should choose which

Choose Kalshi if…

Régulation CFTC
Dépôts USD
App excellente

Choose Polymarket if…

Liquidité maximale
Zéro frais
Milliers de marchés

Choose Manifold Markets if…

Gratuit
Chacun crée des marchés
Grande variété

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.