ArbBets vs ArbEdge
ArbBets and ArbEdge are both filed under Arbitrage and Platforms & Tools and 1 more. Both are trading platforms, and both are paid. Below: the facts side by side, where the two actually differ, and when each one is the better pick.
Arbitrage scanner and data feed for prediction markets and sportsbooks.
Compared with ArbEdge
Polymarket × Kalshi arbitrage scanner. Every 5 minutes it re-prices each pair of markets that ask the same question on both venues — matched by an AI pipeline that reads the full resolution rules — at the average cost of filling 100 contracts from each order…
Compared with ArbBetsAt a glance
| Fact | ArbBets | ArbEdge |
|---|---|---|
| Type | Trading platform | Trading platform |
| Category | Arbitrage | Arbitrage |
| Also listed in | Platforms & Tools, Market Making, Sports Trading, Hedging, Weather Markets | Platforms & Tools, Sports Trading |
| Pricing | Paid | Paid |
| Price | from $149/mo | $12.99/mo |
| Risk rating | Low risk | Low risk |
| Markets | Polymarket, Kalshi and Opinion (cross-venue pairs), Sportsbooks (Basic plan), Perpetual-futures exchanges (funding-rate spreads) | Polymarket and Kalshi binary markets that list the same event |
| Source | Source not published | Source not published |
| Runs in Telegram | No | No |
| Listed since | Nov 2, 2026 | Nov 2, 2026 |
Highlighted rows differ
Key differences
- Both are paid, but on different terms: ArbBets is from $149/mo, ArbEdge is $12.99/mo.
- They cover different markets: ArbBets lists Polymarket, Kalshi and Opinion (cross-venue pairs) and Sportsbooks (Basic plan) and 1 more, ArbEdge lists Polymarket and Kalshi binary markets that list the same event.
- Only ArbBets is filed under Market Making and Hedging and 1 more.
Choose ArbBets if…
- you trade Polymarket, Kalshi and Opinion (cross-venue pairs) and Sportsbooks (Basic plan) and 1 more
- your focus is Market Making and Hedging and 1 more
Choose ArbEdge if…
- you trade Polymarket and Kalshi binary markets that list the same event
What ArbBets does
Arbitrage scanner and data feed for prediction markets and sportsbooks. The Pro plan scans Polymarket, Kalshi and Opinion for the same event priced differently, shows the spread after Kalshi's fees with order-book sizing and links to both legs, and adds a value-bet finder, a weather-market tool that compares National Weather Service forecasts with market prices, a “sharp money” scanner and funding-rate spreads between perpetual-futures exchanges. You place the trades yourself. The top plan sells the same opportunities as a REST API for your own bot, plus a self-hosted Polymarket market-making agent. Plans are $59, $149 and $299 a month; the cheapest covers sportsbook arbitrage only.
Features- Cross-venue scanner of the same event on Polymarket, Kalshi and Opinion, with the spread after Kalshi's taker fee
- Order-book sizing: enter a budget and get the contract count for each leg
- Positive-EV finder, odds screener, Sharp Money Scanner and Weather Edge Finder for Kalshi and Polymarket weather markets
- Funding-rate spreads between perpetual-futures exchanges for delta-neutral trades
- REST API on Premium with full order books and pre-computed spreads, with Python examples
- A tool box for people who place both legs themselves, or who want to build their own bot on its data. The prediction-market scanner starts on the $149 Pro plan — the $59 Basic plan is sportsbook arbitrage only — and the API that would let a bot act on it is $299 a month.
- Its own research is the useful reality check. A report dated August 2026 took six snapshots of the scanner from December 2025 to August 2026 and found 241 profitable Kalshi–Polymarket pairs among 3,030 matched markets, with a median return after fees of 2.1% and 91% of them under 5%; the higher figures it lists are mostly long-dated markets with capital locked for months. The home page's “100+ opportunities daily” and “2–8% spreads” sit above that median, and its Fed-decision card is an illustration. The free “live” preview on the Kalshi–Polymarket page is labelled a delayed sample and was last updated on Jun 19, 2026 when we looked on Nov 2.
- Matching is the risk in cross-venue arbitrage. One of the report's own examples, an 11.1% gap on whether Barack Obama would be named in Epstein files released in 2026, is the kind of pair where the two venues' resolution wording deserves a careful read before you buy both sides. ArbBets holds no funds or keys for the scanner; the market-making agent runs on your own server.
What ArbEdge does
Polymarket × Kalshi arbitrage scanner. Every 5 minutes it re-prices each pair of markets that ask the same question on both venues — matched by an AI pipeline that reads the full resolution rules — at the average cost of filling 100 contracts from each order book, subtracts both venues' taker fees, and lists only the pairs that still pay, with the stake for each leg and a link to place it. You trade by hand on your own accounts. One plan, $12.99 a month after a 14-day trial that needs a card; an automated bot and an API at $19.99 are marked “coming soon”.
Features- Scan of every matched Polymarket–Kalshi pair every 5 minutes, around the clock
- Pairs matched by an AI pipeline on the full resolution rules, re-validated on each scan
- Each leg priced at the volume-weighted cost of filling 100 contracts, with both taker fees subtracted
- Pairs too thin to fill 100 contracts are left out
- Enter a stake and get the dollar amount for each leg, with links to both markets
- A cheap, narrow tool that does one thing and says how it does it: two venues, a 5-minute scan, profit shown after fees and after slippage at a 100-contract fill. Its FAQ is honest about what remains — prices that move before you fill both legs, sizes beyond the depth it measured, and voided events the two venues may settle differently.
- The live sample on the home page checks out. On Nov 2, 2026 it showed Karl-Anthony Towns to lead the NBA in rebounds per game, Yes on Kalshi at 11¢ and No on Polymarket at 83¢, and Jayson Tatum for MVP, No on Kalshi at 91¢ and Yes on Polymarket at 4¢; both venues' public order books matched those prices that morning. Both markets resolve at the end of the 2026–27 season, so the 4–5% they show ties the money up for about eight months, and Kalshi's side had only 550 contracts on offer at 11¢. The NYC mayor card at the top of the page is labelled a mock.
- The about page's “risk-free” and “free money” overstate it, as its own FAQ admits. ArbEdge says it never holds or touches your funds, and the scanner needs no keys. The site names no company or founder — the footer links an X account, @usemako — and the terms fall under United States law. We found no Polymarket builder record under its name. We read the home, pricing, about, terms and risk pages and checked the two live pairs against Polymarket's and Kalshi's public APIs; we did not start the trial, so the dashboard is untested by us.
More head-to-heads
Every fact on this page is taken from the two listings as their authors publish them; POLBOTS verifies neither performance nor claims and has no stake in either tool. Nothing here is financial advice.