Testing yourself beats re-reading.
Retrieval practice — quizzing instead of reviewing — is one of the most reliable findings in learning research. Every Flashcard and Self-Quiz is built on it.
📄 Roediger & Karpicke (2006), Psychological Science
a study environment from a better decade
studdos
It looks like a 1990s desktop — draggable windows, chunky bevels, a teal wallpaper. But it isn't nostalgia. It's a study OS where every single tool is built on real learning science, not vibes. Retro on the outside, research on the inside.
No install. Sign in as a guest and you're on the desktop in seconds.
A desktop, not a dashboard
Apps live in windows you drag, stack, and snap. It feels like a place you work, not a feed you scroll. Everything is one double-click away.
Backed by research, every one
Open any app and there's a “why this works”footer with the actual citation. No tool ships without evidence it helps you learn.
Yours, and private
Your work is yours — export it, delete it, any time. Teachers see the shape of a class, never your individual screen.
The science, not the sizzle
Three findings do most of the heavy lifting. studdos turns each one into a habit you barely notice.
Spread it out. Don't cram.
The same total study time, spread across days, beats one long session in the large majority of experiments. The Planner does the spreading for you.
📄 Cepeda et al. (2006), Psychological Bulletin — 254 comparisons
Doing beats listening.
Active learning outperforms passive lecture across 225 studies. So studdos apps make you do — explain, retrieve, practise — not just read.
📄 Freeman et al. (2014), PNAS meta-analysis
Forty-odd apps. Here are a few.
The desktop starts lean — the daily essentials. Everything else installs from the App Store in a tap.
Flashcards
spaced repetition that schedules itself
Self-Quiz
the testing effect, made a habit
Planner
spreads your studying across days, not nights
Lessons
AI writes a lesson, then makes you explain it back
Tutor
a hint when you're stuck — never just the answer
Classroom
teachers run a class; you never lose your privacy
Learn to Learn
the science of studying, as its own course
UU
join a whole mock university with your campus email
One place, three points of view
Students
Land on a calm desktop with the tools that actually move the needle. A study coach turns “I'm behind” into a plan. Stuck? Ask your teacher, right inside the class.
Teachers
Run classes, collect and mark work, and see honest, aggregate insights — the shape of the class and an at-risk count, never a surveillance feed of named students.
Institutions
A whole mock university, UU, that you join by verifying a campus email — with a directory, a course catalog, a term calendar, a handbook, and your own student ID. Sealed off from everyday users.
Study like it's 1996.
Learn like it's proven.