Flashcards that stick, one synapse at a time.
Synapse is a spaced-repetition flashcard app for the MCAT, SAT, ACT, LSAT, languages — anything you need to remember. Import your own Anki .apkg decks or build your own, work problems with Apple Pencil, and get private on-device AI coaching that knows exactly where you're struggling.
Designed and built by ROI Technologies, Synapse brings the same focus on practical, results-driven outcomes that defines our consulting work — this time to learners and test-takers.
Everything you need to learn faster and remember longer.
A battle-tested SM-2 scheduler shows you each card at the optimal moment, so facts move into long-term memory with less wasted effort.
Bring in your existing Anki .apkg decks or build your own from scratch — with text, images, and LaTeX math fully supported.
Work through problems by hand on a built-in scratchpad — ideal for math, chemistry, and any subject where you think with a pencil.
See where you're strong and where you're slipping, then drill into specific subjects to focus your time where it counts most.
Keep your PDFs, notes, and reference material right alongside your decks so everything you study lives in one place.
Your decks and progress stay in sync across your devices automatically through iCloud — pick up exactly where you left off.
Private coaching powered by Apple Intelligence runs entirely on your device — personalized guidance with none of your data leaving your iPad.
Rich cards render formatted text, images, and full LaTeX math — so equations and diagrams look exactly the way they should.
Study anywhere — on the train, on a plane, or off the grid. Synapse keeps working without an internet connection.
If you have a lot to memorize, Synapse is for you.
Synapse is used by pre-med students preparing for the MCAT, test-takers studying for the SAT, ACT, LSAT, GRE, bar exams, and boards, language learners, and anatomy and medical students — anyone who needs to commit a large body of material to memory and keep it there.
Download Synapse on the App Store, or explore everything it can do on the full site.