The vocab app your teen won't need reminding to use.
rootscroll teaches SAT® and GRE® vocabulary inside the articles, videos, and posts your student already reads, using study methods backed by decades of memory research.
Real vocabulary practice, without the fight.
No new habit to force.
rootscroll works inside reading your student already does, in Safari and Chrome, so practice happens without a study session to schedule.
Two minutes of review a day.
The app brings each word back right before it would be forgotten. Short, spaced reviews beat long cramming sessions.
Roots that multiply.
Every word comes with its Latin or Greek root, so one word helps your student recognize a whole family of others.
Know how it's going without asking.
Link your student's account and you see what they see: words learned, days studied, and every PSAT and SAT Reading and Writing score on one line. Switch between students and scenarios below.
Built on how memory actually works.
Four well-studied ideas, in plain terms.
Words come back right before they're forgotten.
Memory fades fast after we first learn something. rootscroll brings each word back just as it starts to slip, then waits a little longer the next time.
How we know
This is the spacing effect, one of the most reliable findings in learning research, repeated across hundreds of studies.
Students recall the word before seeing the answer.
Every review asks for the meaning first. That small moment of effort is what makes a word stick. Rereading feels easier, which is exactly why it teaches less.
How we know
Researchers call this retrieval practice. It holds up across more than a hundred studies, in classrooms as well as labs, and works best when the answer is shown afterward.
One root turns into a family of words.
Many SAT and GRE words share Latin and Greek roots. rootscroll shows the root inside each word, so related words start to feel familiar.
How we know
Gains are strongest for words in the same family as the roots taught. That's why rootscroll groups words by root, and why we never claim roots unlock every unfamiliar word.
Learning happens inside real reading.
Most vocabulary builds up a little at a time, every time we meet a word in a real sentence. rootscroll makes sure your student meets the right words, again and again.
No guaranteed score jumps.
No honest tool can promise a set number of points. rootscroll helps students learn hard words and keep them.
Roots help, within limits.
They make word families easier to learn. We never invent a word's origin to make it memorable.
It adds to test prep.
rootscroll works alongside classwork and practice tests. It doesn't replace them.
Questions parents ask.
Can I pay for my student's subscription?
Yes. Start the free week and pay with your card, and your student signs in on their own phone and laptop.
What does rootscroll see on my student's screen?
It reads the text of a page so it can swap in harder words. It keeps track of which words your student has met, not which pages they visited.
Is this more screen time?
Barely. rootscroll works inside reading your student already does, plus about two minutes of review in the app each day.
How much does it cost?
$5 a month or $40 a year after a 7-day free trial. Cancel anytime.
Do you work with schools?
Yes. We're planning a classroom pilot with a matched comparison group, and we'll publish the results either way. Get in touch
