Pricing
Free for the core desk. Pro for the edge.
Start free with whales, screener, and traders. Upgrade to Pro when you want arbs, live flow, and exposure.
Free
The core whale desk. Account required. No card for Free.
Whale dashboard
Holdings vs odds, ranked by notional
Trader leaderboard
Profiles and wallet context
Market screener
Crowded books across venues
Kelly & paper tools
Size risk before you commit
Basic alerts
Stay on top of your watchlist
Pro
RecommendedEverything in Free, plus the alpha layer for traders who need the edge.
Cross-venue arbitrage
Polymarket ↔ Kalshi gaps with venue links
Live whale flow
Large fills as they hit the tape
Market exposure
Where size is concentrating
Spread history
Persistent mispricings over time
Priority refresh
Faster data when markets move
Compare
Every surface, side by side.
| Feature | Free | Pro |
|---|---|---|
| Whale dashboard & holdings | Yes | Yes |
| Trader leaderboard & profiles | Yes | Yes |
| Market screener | Yes | Yes |
| Kelly calculator & paper tools | Yes | Yes |
| Basic alerts | Yes | Yes |
| Cross-venue arbitrage scanner | – | Yes |
| Live whale flow & large fills | – | Yes |
| Market exposure rankings | – | Yes |
| Spread history & advanced feeds | – | Yes |
| Priority data refresh | – | Yes |
Why Pro
Free reads the book. Pro catches the move.
Free is enough to study whales, screen markets, and follow top traders. Pro is for when you need cross-venue gaps, live size, and exposure in the same desk - without wiring your own stack.
01
Same event, two venues
When Polymarket and Kalshi disagree, Pro surfaces the gap with links to both books.
02
Size while it matters
Live whale prints hit the desk as large fills land - not after the mid has already moved.
03
Structure, not noise
Exposure and spread history show where risk concentrates and which dislocations persist.
Start on Free. Upgrade anytime.
Open the whale desk now. Go Pro at $20/mo when you want arbs, live flow, and exposure.