See learning clearly
Turn curiosity into understanding.
Looking it up gives you an answer you'll forget. Prism is built for understanding that lasts, and grows into ideas of your own.
The web version is ready now. No download required. On mobile? Join early access.
The problem
Clear explanations feel like learning. Remembering is the hard part.
Most tools stop at a tidy explanation, the part that is easy to nod along to and just as easy to forget. Prism is built around what makes knowledge last: recalling it in your own words, connecting it to what you already know, and noticing where your understanding quietly breaks.
How it works
Four steps, calm and unforced.
You lead. Prism adapts.
Start
Snap or upload a photo, type a topic, or set a goal. Prism works out what matters and offers a few lenses to explore it.
Tune
A dial for wording, from "explain like I'm 10" to technical, plus an "I don't understand" button that re-explains more simply.
Explain it back
Say the idea back in your own words, typed or spoken. This is the Feynman technique, the simplest test of real understanding, and Prism reflects the gaps it reveals. Only a real explanation counts as mastered.
It sticks
Concepts you have seen but not yet mastered come back for you to recall, because retrieving an idea from memory is what makes it last.
What makes Prism different
Designed for understanding that lasts.
Understanding you can prove
A "got it" tap records a feeling, not a fact, so it never marks mastery. Only explaining an idea back in your own words does.
Your personal knowledge map
Every explanation adds concepts to a personal graph that tracks what you know and links new ideas to ones you already learned.
Explained at your level
A simplicity dial changes how Prism explains without dumbing the topic down. It adapts wording and prior knowledge, never a "learning style."
Built for remembering
Active recall brings back concepts you have seen but not yet mastered, because pulling an idea from memory, not reading it again, is what makes it stick.
Where new ideas come from
As your map grows, Prism connects the concepts you have learned and surfaces the questions at the edge of what you know, so understanding turns into ideas of your own.
Take your learnings on the go
Your account syncs your knowledge map across your devices, so everything you've learned travels with you, so you pick up right where you left off, anywhere.
The evidence
Built on research, not vibes.
Every design choice traces to published learning science. Its strongest foundations, recall practice, self-explanation, and starting from what you already know, are among the most established results in the field.
In the interest of trust
What Prism will not do.
No "learning styles"
The idea that matching a visual or auditory "style" improves learning is not supported by evidence, so we do not claim to detect or match one. We adapt wording and prior knowledge instead.
No guaranteed outcomes
Learning is personal and no app can promise a result. We make no medical or guaranteed-outcome claims. We give you methods that have held up for decades.
No invented facts
Prism is built on real sources and flags what it is unsure about. Where the science is mixed, we say so. We will not dress up a guess as certainty.
Questions
Questions people ask.
What is the Feynman technique, and how does Prism use it?
It is the practice of explaining something simply enough that the gaps in your own understanding show. Prism is built around it. You explain each idea back in your own words, and only a real explanation counts as learned. A tap that says "got it" never does.
Why does so much of what we learn slip away?
Reading something again feels like progress, yet most of it fades within days. What lasts is recalling an idea from memory rather than reading it back, what the science calls retrieval. Prism is built around that, so understanding settles in rather than passing through.
Does Prism use active recall?
Yes. Prism brings back concepts you have met but not yet mastered and asks you to recall them and explain them in your own words, rather than reread. Pulling an idea up from memory is what makes it last, and it is one of the steadiest findings in learning science.
Can Prism help me arrive at ideas of my own?
That is where it is headed. As you learn, Prism keeps a quiet map of what you know and links each new idea to it. When concepts meet, it surfaces the questions at the edge of your understanding, the place where curiosity becomes invention.
Early access
A calmer way to learn.
Be among the first to try Prism. We will let you know the moment early access opens, on iPhone and Android.