Perdisum

You choose the time. Perdisum chooses what matters.

Try the complete Perdisum learning workflow free for 7 days.

75 AI credits

Free

$0

25 AI credits / month

  • Reader, highlights, notes, and progress
  • Knowledge view
  • 25 AI credits each month

Pro

$14.99/ month

600 AI credits / month

  • Complete Perdisum Learning Engine
  • Exam, recovery, and time-based sessions
  • 600 AI credits each month

Power

$34.99/ month

1,500 AI credits / month

  • Everything in Pro
  • For intensive study and analysis
  • 1,500 AI credits each month

Eligible regions may see Regional pricing automatically.

Founding Member

25% off eligible paid plans

Join Perdisum early and keep your founding rate while your qualifying subscription remains continuously active.

Credits reset monthly

AI credits reset each billing cycle. Unused credits don’t currently roll over. Trial credits expire when the trial ends.

Your learning stays yours

When a trial or plan ends, your books, highlights, notes, and progress are still here.