Free for daily drilling. Paid for the week you can't afford to be unprepared for.
The core arithmetic drill — timed integer, decimal, and fraction rounds — is free forever, no account required. Everything below adds firm-specific simulation, the harder categories, and inline method explanations, for candidates prepping for a specific assessment.
Passes — pick your window
One payment. Access turns off on its own when the window closes — nothing to remember to cancel.
Interview Pass — 14 days
$2914 days of full access — enough for one assessment cycle.
14 days
Recruiting Season — 90 days
$4990 days of full access — enough to prep for a full recruiting cycle.
90 days
Or keep it running — Monthly
$19/ month
Ongoing access, billed monthly. Cancel any time.
What Pro unlocks
Free, always
- Unlimited timed arithmetic drills
- Integer, decimal, and fraction speed rounds
- Session score and accuracy, no account required
Pro — any plan above
- Firm-specific simulation modes (Optiver, Flow Traders, Akuna, IMC, Jane Street formats)
- Advanced categories — probability, expected value, market making, options, P&L
- Per-problem method explanations shown inline, not just in review
- Progress analytics across sessions and categories
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