Why Look for ArbBets Alternatives?
ArbBets is a cross-market arbitrage tool designed to surface profit opportunities across prediction markets, including Kalshi's CFTC-regulated event contracts. It connects traders who want to exploit price discrepancies between markets — for example, when the same event trades at different implied probabilities on Kalshi versus another platform. If you're actively trading on Kalshi and looking to maximize edge through arbitrage, ArbBets alternatives are worth evaluating to find the tool that best fits your workflow, budget, and preferred market pairs.
There are several reasons a Kalshi trader might look beyond ArbBets. Some tools offer browser-extension convenience instead of a standalone interface. Others specialize in specific market pairs, offer additional odds-comparison features, or provide automated scanning via cloud-based actors. Depending on whether you want a quick browser overlay, a dedicated dashboard, or a scriptable scraper you can customize, the right tool may differ from what ArbBets provides.
Best ArbBets Alternatives in 2026
OddPool
OddPool is a cross-market odds comparison platform that surfaces arbitrage opportunities across prediction markets, including Kalshi. It takes a broader odds-aggregation approach, making it useful not just for spotting pure arbitrage but also for comparing implied probabilities across platforms at a glance. Traders who want a more comprehensive view of market pricing — beyond just flagging arb gaps — may find OddPool's interface a better fit than ArbBets.
Best for: Kalshi traders who want a multi-market odds dashboard alongside dedicated arbitrage alerts.
PolyArbitrage (Chrome Extension)
PolyArbitrage is a Chrome extension that identifies arbitrage opportunities specifically between Polymarket and Kalshi, running directly in your browser without requiring a separate application. Its tight focus on the Polymarket–Kalshi pair means it's highly targeted but less versatile than broader tools like ArbBets. The browser-extension format makes it especially convenient for traders who are already monitoring markets in a web browser.
Best for: Traders who primarily arb between Polymarket and Kalshi and want a lightweight, always-on browser tool.
Polymarket–Kalshi Arb Finder
This Apify actor automates the scanning of arbitrage opportunities between Polymarket and Kalshi, running as a cloud-based scraper that can be scheduled and customized. Unlike a GUI tool such as ArbBets, it's developer-oriented and suits traders comfortable working with the Apify platform and API-driven workflows. It's a strong option for anyone who wants to integrate arb scanning into a larger automated trading or alerting pipeline.
Best for: Developers and technically advanced Kalshi traders who want to automate and customize their arb-scanning workflow.
EventArb
EventArb is a dedicated arbitrage scanner built specifically for event-contract markets, with Kalshi included in its coverage. Its focus on event contracts — the exact format Kalshi uses — means it's purpose-built for the type of markets Kalshi traders operate in, rather than adapted from sports-betting or financial-market tools. If you want a platform designed from the ground up around event-based arbitrage, EventArb is a direct and focused alternative to ArbBets.
Best for: Kalshi traders who want an arb tool built natively around event contracts rather than adapted from other market types.
DeFiRate Prediction Market Calculators
DeFiRate offers prediction-market calculators and odds tools that support Kalshi traders in evaluating positions and potential arb scenarios. Rather than an automated scanner, it provides manual calculation resources — useful for verifying opportunities or understanding payout structures before executing a trade. It complements rather than replaces a live scanner, making it a helpful supplementary resource alongside any of the tools above.
Best for: Kalshi traders who want manual calculators to analyze and validate arbitrage setups before placing trades.
How to Choose the Right Alternative
The best ArbBets alternative for your needs depends on how you trade on Kalshi, your technical comfort level, and the specific markets you want to monitor. Consider the following criteria when making your decision:
- Market pair coverage: Some tools focus exclusively on the Polymarket–Kalshi pair, while others scan a wider range of prediction markets. Match the tool to the platforms you actually trade on.
- Interface format: Decide whether you prefer a standalone web dashboard, a browser extension that runs passively, or a cloud-based automated actor you can schedule and script.
- Automation vs. manual analysis: Live scanners surface opportunities in real time, while calculator tools require manual input. Fast-moving Kalshi markets often reward automation.
- Technical requirements: Cloud-based actors like the Apify tool require developer familiarity, while browser extensions and web apps are accessible to all traders.
- Scope of features: Some alternatives offer pure arb detection, while others layer in odds comparison or market calculators — consider whether you need a focused tool or a broader research platform.