These two tools are less alike than the category suggests. Prediction Hunt is a breadth product — compare odds across five or more venues, free. MarketMaster is a depth product on two venues — model fair value, size the bet, verify the resolution, track what it did to your P&L.
Want to see where every venue in the market is pricing one event, at no cost? Prediction Hunt. It covers more venues than we do and it is free.
Want a modelled fair value and EV on Kalshi and Polymarket, alerts within minutes, and a journal that tells you whether your edge is real? MarketMaster. Free to start; $12.99/month adds the arbitrage feed.
Prediction Hunt does not publish a subscription pricing page; its scanner and API are promoted as free. Recorded 23 August 2026.
| MarketMaster | Prediction Hunt | |
|---|---|---|
| Price | Free forever · Pro $12.99/mo | Free · no published paid tier |
| Venues | Kalshi, Polymarket | Kalshi, Polymarket, PredictIt, ProphetX + others |
| Cross-venue arbitrage | Yes — Pro, ranked by annualised return | Yes — ranked by ROI, free |
| Resolution verification | Machine-verified; ambiguous pairs withheld | Yes — links each leg to the venue rulebook |
| Fee & spread analysis | Yes — live asks, exact per-venue fee curve | Yes — fee and spread analysis |
| Modelled fair value & EV | Yes — every market gets a fair value and an EV edge | Not advertised |
| Position sizing | Yes — quarter-Kelly | Not advertised |
| Alerts | Yes — within minutes on Pro, unlimited watchlists | Not advertised |
| Trade journal & P&L | Yes — free tier, synced read-only from your exchange | Not advertised |
| Smart-money feed | Yes — $10k+ trades | Yes — Smart Money Feed |
| Public API | Free key · $9.99 / $29.99 paid tiers · SDKs · WebSocket | Yes — promoted as free |
| MCP server (Claude, Cursor) | Yes | Not advertised |
| Tools directory | No | Yes — community-curated leaderboard |
Neither answer is wrong. They are answers to different questions.
It is the most common objection to MarketMaster and it deserves a straight answer rather than a roadmap promise.
Kalshi and Polymarket are the two real-money venues where the same event is cross-listed often enough for a comparison to carry information. Adding thin venues would raise our headline market count and lower match quality — more pairs, more of them wrong, and a bigger number on the homepage. That is the opposite of the trade-off we want to make, because a false arbitrage costs you real money and a missing venue only costs you a click.
So if venue count is your deciding factor, Prediction Hunt genuinely is the better tool, and we would rather say so than lose your trust in month two.
Prediction Hunt's odds comparison and arbitrage scanner are free to use, and it promotes a free API. It does not publish a subscription pricing page. If cost is the only thing you are optimising for, it is hard to beat free.
Prediction Hunt, comfortably. It compares odds across Kalshi, Polymarket, PredictIt, ProphetX and others. MarketMaster covers Kalshi and Polymarket only, on purpose: those are the two real-money venues where cross-listing is common enough for a comparison to mean something, and adding thin venues would inflate the market count while degrading match quality.
No, and plenty of traders will use both. Prediction Hunt is a good wide-angle lens on where every venue is pricing an event. MarketMaster is a depth tool on two venues: modelled fair value, EV, quarter-Kelly sizing, alerts within minutes, a synced trade journal, and arbitrage priced at live asks after exact fees.
Three things mainly: a fair-value model that produces an EV edge rather than only a price comparison; a trade journal that syncs your real positions and grades your results over time; and alerts that fire within minutes of a threshold being crossed. Prediction Hunt does resolution-criteria verification well, which is a capability we consider essential too.
Prediction Hunt does not publish a subscription pricing page, so “free” reflects how its scanner and API are promoted rather than a stated commitment. Where a capability is marked “not advertised”, it means we could not find it documented on the vendor’s own site — not that it definitely does not exist. Spotted something wrong? Tell us and we will correct it.
The full scanner and analyzer are free, forever. No card, no trial clock.
MarketMaster is an analytics tool. It does not provide financial advice or guarantee returns, and prediction markets carry real risk of loss.