Not competitors — complements. Here's who wins on what.
Use Modern States when
You're brand new to the subject and need actual lectures + a textbook. It's a course, for free, with a free exam voucher at the end.
Use PrepLion when
You need to know IF you're ready, WHERE your gaps are, and HOW to close them before paying $97 to sit an exam.
| Feature | Modern States | PrepLion |
|---|---|---|
| Cost | Free | Free tier + $19/mo Pass Plan |
| Content instruction (lectures/textbook) Modern States is a course. We're a prep tool. | ||
| Exam voucher | Free $97 voucher after completion | |
| Practice questions | Small bank per course | 500+ per exam, diagnostic-ordered |
| Pass-probability score | ||
| Weakest-unit identification | ||
| Mock exams with real timing | ||
| Personalized study plan | ||
| AI tutor for content questions Sage — explains concepts, unlike a static course | ||
| DSST coverage |
Modern States teaches you the material. Great — take the course, collect the free $97 voucher. But nothing in Modern States tells you whether you'll actually pass. Many students finish the course, walk into testing, and find out they needed more practice on 2-3 units. $97 and a 3-month retake wait later, they wish they'd checked their readiness first.
PrepLion is the check. Take a free diagnostic — in 10 minutes you see your pass probability and your weakest units. Already strong? Go take the exam. Need more work? We'll drill the gaps until you're at 70%+.
Free 10-minute diagnostic. See your projected CLEP scaled score.
Start free diagnostic