Overview
When comparing ArbPoly vs Eventarb, two distinct approaches to prediction market arbitrage come into focus. ArbPoly is a fully operational, automated trading infrastructure built on Solana that scans platforms like Polymarket, Kalshi, and PredictIt for pricing discrepancies and executes both sides of a trade in milliseconds. It is designed for traders who want a hands-off, end-to-end arbitrage system running around the clock. Eventarb, by contrast, is a free, calculator-style alerting tool focused on identifying cross-platform arbitrage opportunities across prediction markets including Polymarket and Kalshi — though as of now, it has not yet launched and remains listed as coming soon.
Both tools target the same underlying opportunity: the price inefficiencies that emerge when identical or correlated events are listed across multiple prediction market platforms at different implied probabilities. However, they address that opportunity in fundamentally different ways — one through full automation and blockchain execution, the other through calculation and alerting. Understanding those differences is essential before deciding which tool fits your trading style and current needs.
ArbPoly vs Eventarb: Key Differences
| Category | ArbPoly | Eventarb |
|---|---|---|
| Primary Function | Automated arbitrage execution across prediction markets via trading bots | Calculation and alerting of cross-platform arbitrage opportunities |
| Target User | Active traders seeking automated, low-intervention arbitrage trading | Traders who want to identify opportunities manually and execute themselves |
| Platform / Interface | Web app with real-time dashboard, wallet integration (Phantom, Solflare), Solana-based execution | Not yet available; described as a free web-based calculator and alert tool |
| Automation Level | Fully automated — bots scan markets and execute trades 24/7 in ~400ms | Informational only — alerts and calculations, no automated trade execution |
| Pricing | Paid (specific pricing details available on the ArbPoly website) | Free |
| Key Strength | Speed, non-custodial execution, Solana/Jupiter integration for low-cost trades | Accessibility and zero cost for users who prefer manual trade execution |
| Best For | Traders wanting to capture arbitrage systematically without constant manual oversight | Traders who want free visibility into opportunities and retain full execution control |
When to Choose ArbPoly
ArbPoly is the stronger choice for traders who are serious about capturing prediction market arbitrage at scale and speed. Its automated bots, Solana-based execution, and non-custodial wallet integration make it suitable for users who want a professional-grade infrastructure that operates continuously without manual input. Given that arbitrage windows in prediction markets can close within seconds, execution speed is a meaningful advantage here.
- You want fully automated arbitrage execution without monitoring markets manually around the clock.
- You are comfortable connecting a Solana wallet (such as Phantom) and funding it with USDC to enable bot trading.
- You are willing to pay for a premium tool that offers real-time analytics, performance tracking, and high-speed trade execution.
When to Choose Eventarb
Eventarb may appeal to traders who prefer a no-cost entry point into prediction market arbitrage and are comfortable executing trades themselves once an opportunity is identified. However, it is important to note that Eventarb has not launched yet, so prospective users should monitor its release before making any plans around it. Once available, it could be a useful starting tool for those exploring arbitrage without a financial commitment.
- You want a free tool to learn about and identify cross-platform arbitrage opportunities before investing in automation.
- You prefer to retain full manual control over every trade rather than delegating execution to an automated bot.
- You are willing to wait for the platform to launch and are not operating under time-sensitive trading conditions.
Verdict
ArbPoly is the only fully functional option available today — it offers a complete, automated arbitrage system with measurable execution advantages and a live product users can access right now. Eventarb presents an interesting concept as a free, lightweight alternative focused on alerting rather than execution, but it has not launched yet, making any direct performance comparison premature. If you need a working arbitrage tool today and are willing to invest in a paid solution, ArbPoly is the clear choice. If you are cost-conscious, prefer manual execution, and are willing to wait, Eventarb is worth watching once it becomes available.