Walk into the AP exam knowing you know it.
AP, SAT, A-Levels, or finals. Turn your notes, a textbook chapter, or a review video into a study kit, then a Feynman teach-back and real spaced repetition prove you're ready, not just busy.
The same engine, tuned to your workload.
Notes to a study kit
Drop in your notes, a chapter, or a review video. Synapsi builds the summary, flashcards, and quiz for the exact topics on the test.
Feynman finds the gaps
Explain a topic in plain English. An AI tells you what you missed, so you study the weak spots, not the ones you already know.
Spaced repetition to the date
Real SM-2 scheduling keeps every topic in rotation right up to test day.
Four steps, every lecture.
Add the material
Upload notes, a chapter, or paste a review video.
Get the kit
Summary, flashcards, and a quiz on the test's topics.
Drill
Spaced repetition keeps weak topics coming back until they stick.
Prove it
Feynman teach-back to be sure before the exam, not surprised during it.