Pricing
Start in paper. Pay when it earns a place in your process.
Every plan runs the same guardrail — simulated fills, slippage and depth checks, server-enforced caps, and a full evidence trail. The trial is card-required and read-only after 3 days; nothing trades real money until you explicitly activate.
Plans
Sonde starts with a card-required 3-day trial, then monthly Pro or Elite. Paper stays available until you explicitly activate bounded real-active execution.
Monthly billing
Trial
$03-day trial
Card-required for 3 days
- 5 active flows
- 25 runs / day
- 10 watched entities
- 2 backtests / day
- Read-only after expiry
ProRecommended
$40/mo
For active individual traders
- 25 active flows
- 250 runs / day
- 100 watched entities
- Bounded real-active execution
- 90-day evidence retention
- Upgrade when trial caps hit
Elite
$200/mo
For desks and high-volume teams
- 250 active flows
- 2,500 runs / day
- 1,000 watched entities
- Higher exposure caps
- 365-day evidence retention
- Dedicated support
Try it on a real market today
Paper runs use real market data and write real evidence — only the orders are simulated. Not financial advice; trading carries a risk of loss.
Build a guarded flow