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A+Octo the study octopus
MJPA+
Used by 50,000+ college students

Use AI to actually learn it not to cheat your way past it.

AI chat, flashcards, and practice tests, all built from your own slides, PDFs, and lecture recordings.

Try free

Loved by students at

HarvardHarvardStanfordStanfordKoç UniversityBoğaziçiBoğaziçiNYUNYUArizona StateArizona StateWashUWashUHarvardHarvardStanfordStanfordKoç UniversityBoğaziçiBoğaziçiNYUNYUArizona StateArizona StateWashUWashU

Watch it expose your gaps, then delete them.

Explore what Eightball can do

app.eightball.ai/practice Cell division · 3 questions
Biology 101Cellular respiration quiz
14:30
Question 11/3
Multiple choice1 / 3

Which molecule is the final electron acceptor in aerobic respiration?

1 / 3

Practice tests

Exam-style practice tests that match your class

Generate unlimited quizzes from your own course content, so you practice the exact material your professor is most likely to test, not random questions from the web.

  • Questions drawn straight from your lectures
  • Every explanation cites the slide it came from
  • Timed exam mode to rehearse test day

It helped students learn so well they tried to call it cheating.

Eightball won first place at Emory University's startup competition. The school celebrated it as student innovation. Then, months later, it tried to expel its founders for building a “cheating tool.”

So they sued, won, and proved what they'd said all along: Eightball was never built to do your work for you. It was built to make you learn.

🏆 1st place · Emory Startup Prize📈 329K+ views on the story

Featured in

404 MediaBusiness InsiderForbesFox
Jason Koebler on X: Students at Emory University built an AI study tool, won grand prize and $10,000 to build it. Then the school's Honor Council suspends them for cheating.
Andrew Chen on X: Ok how do I get in touch with these college students so that I can fund them?
Andy Berman on X: I am an Emory alum and I coached the startup prize for Eightball. I voted to award the team $10,000. This is just wrong.

Questions

Do I need to pay to get started?

No, we offer a free trial. You can try all features before deciding to upgrade.

Will it make stuff up like ChatGPT?

No. Eightball only answers from your uploaded materials. Every response shows exactly where it came from: the page number, slide, or timestamp.

How do I add my course materials?

Drag and drop PDFs, slides, or recordings. Or connect Canvas to auto-import everything from your classes.

Does my school need to be partnered with you?

No. Eightball works with any school. Just upload your materials and you're ready to go.

MMaya R.
Got an A on my orgo final and I genuinely think Octo carried me 😭
2dReply
SSam
Recorded my whole bio lecture and had clean notes before I even left the room.
4dReply
NNoah
The flashcards pull straight from my professor's notes. that's the cheat code.
3dReply
MMaya R.
Got an A on my orgo final and I genuinely think Octo carried me 😭
2dReply
SSam
Recorded my whole bio lecture and had clean notes before I even left the room.
4dReply
NNoah
The flashcards pull straight from my professor's notes. that's the cheat code.
3dReply
JJordan
Made 100 flashcards from one lecture recording in like 30 seconds. unreal.
1dReply
AAaliyah
Honestly the only study app that uses MY slides and not random internet stuff.
14dReply
BBea
Practice tests felt scarier than the real exam lol. walked in ready.
6dReply
JJordan
Made 100 flashcards from one lecture recording in like 30 seconds. unreal.
1dReply
AAaliyah
Honestly the only study app that uses MY slides and not random internet stuff.
14dReply
BBea
Practice tests felt scarier than the real exam lol. walked in ready.
6dReply
PPriya
The citations are everything. I can actually trust the answers for once.
8dReply
CChris
Asked it a question at 2am and it pointed me to the exact slide. wild.
4dReply
IIris
Octo is the reason I'm passing physics. that's it that's the review ✨
2dReply
PPriya
The citations are everything. I can actually trust the answers for once.
8dReply
CChris
Asked it a question at 2am and it pointed me to the exact slide. wild.
4dReply
IIris
Octo is the reason I'm passing physics. that's it that's the review ✨
2dReply
DDevon
I stopped re-reading 200 pages the night before. practice tests fixed me.
7dReply
LLena
Went from a C to an A- in calc 2 this semester. not even exaggerating.
9dReply
TTariq
Uploaded my syllabus and it just… knew my whole class. love it here.
5dReply
DDevon
I stopped re-reading 200 pages the night before. practice tests fixed me.
7dReply
LLena
Went from a C to an A- in calc 2 this semester. not even exaggerating.
9dReply
TTariq
Uploaded my syllabus and it just… knew my whole class. love it here.
5dReply

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Real students, real grades. 50,000+ and counting.

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No payment required · Works with any school