Built by students, for students.

We built StudyPebble because we were tired of study apps that either cost $250+ or threw random questions at us with no plan. We wanted one thing: something that actually learns what you're bad at and fixes it.

Why it exists

Studying for the SAT, we found every app was either free but basic (Khan Academy), or good but insanely expensive (UWorld at $250+, Albert at $79/subject). Nothing in between adapted to what we actually needed to work on. So we built it.

We use the same kind of rating system chess uses (Elo) to track your level on every topic. When you get something wrong, it remembers. When you get something right, it moves on. It's not random. It's not a static question bank. It's actually watching how you perform and adjusting in real time.

What makes it different

5,145 SAT questions

Original, written to the College Board skill codes

AI tutor

Ask Pebble anything, get a real explanation, not a textbook copy-paste

Full-length practice tests

Adaptive modules on real digital SAT timing, with a score estimate

Auto-flashcards

Every wrong answer becomes a review card with spaced repetition

Cram mode

Enter your test date, get an urgency-matched daily plan

Wrong Answer DNA

AI finds hidden patterns in your mistakes across both sections

The numbers

5,145

original SAT questions

questions in a full length test

2h14

real digital SAT timing

$19.99/mo

vs $250+ competitors

Contact

Questions, feedback, or just want to say hi? Email support@studypebble.com.

Start studying free