passd.
The diagnostic is always free — 20 questions, no card, your Passd Score at the end. Paid plans add unlimited adaptive practice, full-length mock exams, and an AI tutor.
Solo keeps track of what you’re getting wrong and sends you more of it — unlimited practice, full-length mock exams, and a Passd Score that updates with every answer. You decide what to study and when. For a lot of people, that’s all they need.
Tutor uses the same information and goes a step further. The voice tutor knows your weakest topics and talks you through them. Your study guide is built from the questions you miss, not a generic outline. And your daily plan changes as you improve.
Same exam, same goal. Solo shows you what to work on. Tutor works on it with you.
Everything you need to drill, measure, and improve on your own.
Everything in Solo, plus an AI tutor that adapts to what you’re getting wrong and teaches the why.
| Free | Solo | Tutor | |
|---|---|---|---|
| Diagnostic | |||
| Practice questions | — | Unlimited | Unlimited |
| AI flashcards | — | Unlimited | Unlimited |
| Passd Score | From diagnostic | Live updates | Live updates |
| Detailed wrong-answer explanations | Diagnostic only | Full | Full |
| Full-length mock exams | — | ||
| Wrong-answer review queue | — | ||
| Adaptive engine | — | ||
| Voice Tutor (Socratic AI) | — | — | |
| AI Audio Mode | — | — | |
| AI Study Guide Generator | — | — | |
| Vocabulary Drills | — | — | |
| Daily personalized study plan | — | — | |
| Exam-day readiness report | — | — |
20 questions. No card. Your Passd Score at the end.
Take the free diagnostic