Prediction-market directory
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Compare the statements and evidence we have collected. Each column retains its source dates; historical claims and missing fields are visible.
Catalogue fields are historical source statements. Page metadata may refer to a publisher or embedded product. Neither establishes the verified legal operator, present pricing, regulatory status or quality of a service.
Download this comparison as CSV| Field | ArbBets VK-724b2e98a97c9490 | Event Arb VE-0723e7b3a5d9f776 |
|---|---|---|
| Published contributor description | Not supplied | Not supplied |
| Contributor pricing statement | Not supplied | Not supplied |
| Contributor details published | Not supplied | Not supplied |
| Profile claim | No active approved claim | No active approved claim |
| Record evidence | Historical catalogue only | First-party website observation |
| Historical product description | Scanner that flags YES/NO price gaps across Polymarket, Kalshi and Opinion (990+ matched pairs), with alerts and a REST API on higher tiers. Does not place trades. | Free calculator for event-contract arbitrage: enter odds from Kalshi, Polymarket, Robinhood or Interactive Brokers and it returns fee-adjusted spreads and stake splits. |
| Name in the historical catalogue | ArbBets | Eventarb |
| Reported category | Arbitrage | Arbitrage |
| Reported venues | Polymarket, Kalshi, Opinion, Novig, sportsbooks | Kalshi, Polymarket, Robinhood, Interactive Brokers |
| Historical pricing statement | Basic $59/mo, Pro $149/mo, Premium $299/mo | Free |
| Open-source claim | Source says no | Source says yes |
| Execution claim | Source says no | Source says no |
| Historical status statement | live | live |
| Historical backer statement | Not stated | Not stated |
| Catalogue-reported repository | Not stated | https://github.com/akhan280/event-contract-arbitrage |
| Catalogue's own check date | 2026-08-27 | 2026-08-27 |
| Catalogue snapshot date (UTC) | 2026-09-08 | 2026-09-08 |
| Operator name in page metadata | Not captured | Not captured |
| Location in page metadata | Not captured | Not captured |
| Founding date in page metadata | Not captured | Not captured |
| Page-declared statements | 0 | 0 |
| Linked repository records | 0 | 0 |
| Vultax assessment | Not assessed | Not assessed |
| Website | https://getarbitragebets.com/ | https://www.eventarb.com/ |
| Evidence | View source (opens in a new tab) Snapshot: Complete profile and history | View source (opens in a new tab) Snapshot: Complete profile and history |
Historical descriptions and catalogue claims: Kairos contributors, CC BY 4.0. Vultax adds source matching, presentation and factual comparisons. Attribution, licences and coverage.