Practice
Paper trading, zero risk
Start with a fake bankroll against live prices. Copy the whales that actually win, backtest any strategy over the past year, and watch your P&L tick exactly like a real account. Free forever.
Practice on paper.Trade live with zero fees.
Orca is the trading desk for prediction markets. Copy whale trades with a paper bankroll, backtest any strategy, and place real orders on Polymarket and Kalshi without paying Orca a cent.
9:41
Two ways to trade.One desk.
Real money
Live trading, zero fees
Connect your Polymarket or Kalshi account and place real orders from the desk you practice in. Every order is signed by you, settles on the exchange, and carries 0% Orca fees. Included with Pro.
Your whole trading desk.In one view.
Portfolio value, open positions and an order ticket side by side, on Polymarket and Kalshi.
Learn. Practice. Go live.
Step 1
Learn the market on Polywhaler
Polywhaler streams every whale trade on Polymarket and Kalshi as it lands. Study the flow, the insider scores and the Smart Money leaderboard until you know exactly whose trades are worth following.
Explore Polywhaler
Step 2
Practice with a paper portfolio
Open a paper portfolio and trade the same markets with a fake bankroll. Copy the whales you trust at a fixed size, run backtests, and let the equity curve prove your strategy works, with zero risk.
Try a quick backtest
Step 3
Go live with zero fees
Connect your Polymarket wallet or Kalshi account and run the same strategy with real funds. Every order is signed by you, settles on the exchange, and carries no Orca fee.
Live trading comes with Pro
Replay any strategybefore you risk a dollar.
Copy a whale with a fake bankroll and see exactly how you'd have done. Orca replays every trade they made over your window, tick by tick. Your first backtest needs no account.
Open the backtester on its own pageHypothetical results from replaying historical trades. Simulated performance is not a guarantee of future returns.
On the web.And on iPhone.
On the web
The full desk in your browser: paper and live portfolios, backtests, copy trading and every chart.
On iPhone
Check your portfolios, follow whales and copy their trades from your phone.
Why Orca?
Orca is the trading desk for prediction markets, built by Polywhaler. Practice against live prices, then trade for real without paying Orca a cent.
Zero Orca fees
0% on every live order you place
Paper and live
The same desk with a fake or a real bankroll
Copy whales
Mirror each new trade at a fixed size you choose
Realistic fills
Paper results priced at executable prices
Non-custodial
Every live order is signed by you
Backtests
Replay up to a year of any whale's trades
Start with the signal. Add depth when you need it.
Explore the live feed for free. Upgrade for advanced analysis, instant alerts, trading workflows, and programmatic data.
Free
$0/forever
Everything you need to start tracking whale activity.
Includes:
- Limited Agent usage
- Live whale trade feed
- Add whales to your watchlist
- Whale leaderboard
- Suspicious events feed
- Interactive market charts
Pro
Most popular$4.92/month
For active traders researching wallets and following the next move.
Billed annuallySave 45%
Everything in Free, plus:
- Expanded Agent usage
- Full access to Orca
- Custom alert rules
- Full whale profile data
- Whale overlay, candles & multi-compare
- The Prophet daily newspaper
Quant
For analysts$49.92/month
For analysts building strategies with deeper data and API access.
Billed annuallySave 50%
Everything in Pro, plus:
- Extensive Agent usage
- REST API (10k req/day)
- Resolved outcomes with P&L
- Real-time webhooks
- Insider & cluster scores via API
- Bulk CSV / JSON / Parquet exports
Compare every plan feature+
Compare all features
| Feature | Free | Pro | Quant |
|---|---|---|---|
 | |||
| Agent usage | 5 lifetime turns | 200 turns / month | 2,000 turns / month |
| Live whale trade feed | |||
| Add whales to your watchlist | |||
| Whale leaderboard | |||
| Suspicious events feed | |||
| Interactive market charts | |||
| World map view | |||
| Price predictions & history | |||
| Coordinated whale buying markets detection | – | ||
| Whale performance graph | – | ||
| Current whale positions | – | ||
| Best/worst whale trades | – | ||
| Whale trading patterns | – | ||
| Smart money breakdown | – | ||
| Top whales per event | – | ||
| Map clusters & timeline | – | ||
| Custom alert rules | – | ||
| Whale overlay, candles & multi-compare | – | ||
| The Prophet daily newspaper | – | ||
| CSV / JSON export | – | ||
| REST API (10k req/day) | – | – | |
| Resolved outcomes with P&L | – | – | |
| Real-time webhooks | – | – | |
| Insider & cluster scores via API | – | – | |
| Bulk CSV / JSON / Parquet exports | – | – | |
Orca | |||
| Single paper trading portfolio | |||
| Whale copy trading simulation | |||
| Quick whale backtest | |||
| Unlimited paper trading portfolios | – | ||
| Live trading portfolios integrated with Kalshi and Polymarket | – | ||
FAQs
Everything you wanted to know about Orca: paper trading, live trading, backtests and pricing.
Does live trading really have zero fees?
Yes. Orca charges 0% on every live order. You connect your own Polymarket or Kalshi account, and each trade settles on the exchange at its normal price with no extra Orca fee. Live trading is included with Pro.
How do I connect my account to trade live?
On Pro, link your Polymarket wallet or Kalshi account once. Orca then lets you place real orders from the same interface you paper trade in. Every order is signed by you and non-custodial, so your funds never leave your control.
Can you paper trade on Polymarket?
Polymarket has no built-in practice mode, so Orca adds one. You trade with a fake bankroll against live Polymarket and Kalshi prices, and your portfolio tracks every position, gain, and loss exactly as a real account would.
How do I backtest a strategy?
Open Quick Backtest, add a whale or market, and pick a window from 30 days to a year. Orca replays every trade in that period and shows the equity curve, win rate, and every position. Your first backtest needs no account.
Can I copy Polymarket whales?
Yes. Follow any whales you like and Orca mirrors each new trade they make into your portfolio at a fixed dollar amount you choose, so one big bet from a whale never wipes you out.
Is Orca free?
Yes. Quick backtests need no account, and a free account includes one paper portfolio plus the live whale tracker and leaderboard. Pro unlocks live trading and unlimited portfolios.
