TapeXray vs ArbBets: what actually differs in 2026
ArbBets prices its prediction-market plan, Pro, at $149 a month with no free trial, and its pricing page names no historical-data or archive feature. TapeXray's board is free and scans 236,027 markets across Kalshi and Polymarket, publishing a full match funnel: 10,869 pairs checked, 6 cleared the same-bet gate, 2 stayed positive after fees today.
| Dimension | TapeXray (live) | They say | Source |
|---|---|---|---|
| Size of the archive scanned | 263,852 markets in the archive | $149/mo Pro plan covers Polymarket, Kalshi, Opinion and Novig; the pricing page states no market or archive count. | Source |
| Matched pairs scored against a published funnel | 8 matched pairs scored against the fee line | Pricing page lists scan and alert tiers with no matched-pair count or funnel breakdown published. | Source |
| Historical odds archive | 2026-09-26 archive last updated | Pricing page names no historical-data or archive feature on any tier. | Source |
What does ArbBets actually offer?
ArbBets sells three monthly tiers, read from its own pricing page on 2026-09-23: Basic at $59, Pro at $149, and Premium at $299 with API access. Pro is the plan that actually covers prediction markets - Polymarket, Kalshi, Opinion, and Novig together - so it is the comparable tier, not the $59 Basic plan a casual reader might assume from the headline price. None of the three paid tiers carries a free trial; a separate free arbitrage finder exists outside the paid product, and this page does not compare against that free tool, only against the paid scanner.
The pricing page itself is the only source this comparison uses - not a trial account, not a sales call. It lists scan frequency and venue coverage per tier, but at no point names a historical-data feature, an odds archive, or a record of past prices. That absence is not proof ArbBets has no such feature anywhere in its product; it is what its own marketing page chose to say, or not say, on the date this desk read it.
What does TapeXray publish that ArbBets' pricing page does not mention?
TapeXray's archive tracks 236,027 markets - 97,194 on Kalshi and 138,833 on Polymarket - and the live board matches them by title before scoring anything. On 2026-09-23 the matcher checked 10,869 candidate pairs and rejected 7,218 as suspect: a weak title match, a stale or one-sided order book, or a raw gap too large to be the same real-world bet. Of the pairs that survived, 6 cleared the same-bet gate, 4 sat inside the combined round-trip fee cost, and 2 were still positive after fees. Every one of those counts is published on the live board, not just the headline number.
| Stage | Count | 2026-09-23 |
|---|---|---|
| Candidate pairs matched by title | 10,869 | checked |
| Rejected as suspect | 7,218 | too weak, thin, or wide |
| Cleared the same-bet gate | 6 | scored |
| Inside the combined fee line | 4 | not worth trading |
| Positive after fees | 2 | real gaps today |
TapeXray also reads Polymarket's taker-fee rate per market, straight from that market's own Gamma catalog row, rather than assuming one flat number for every category. A market whose schedule is missing or unreadable is priced at the highest published rate rather than the cheapest, so an unknown fee can never make a trade look better than it might actually be. ArbBets' pricing page does not describe how its own fee adjustment sources each venue's rate, so this is not a claim about what ArbBets does or does not do internally - only about what TapeXray's own fee calculator can show its working for.
Is TapeXray actually cheaper than ArbBets?
Not necessarily, and this page will not pretend otherwise: ArbBets also offers a free arbitrage finder outside its three paid tiers, so "free" is not unique to TapeXray. The honest comparison is not the price tag, it is what sits behind it. TapeXray's board is free and its funnel, archive size, and per-market fee sourcing are all checkable against the live export at any time; ArbBets' $149-a-month Pro plan is the one that actually covers prediction markets, and its own pricing page is the only public description of what a subscriber receives for that $149.
A reader deciding between the two should judge on what each product actually discloses, not on a single number pulled from a marketing page. See Prediction Hunt for the other product this desk could verify, and the markets archive for the full catalog TapeXray's 236,027-market count above is drawn from.