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Octo.

Coming to iPhone

Know what to study next. Turn notes into quizzes.

Upload your slides, PDFs, or scans. Review the concepts you miss, then try new questions to see what you’ve learned.

App preview · Sample question

From lecture to understanding.

01

Bring your material.

Add a lecture, your notes, or a scan. Create a quiz from the material you actually need to learn.

02

Find the gaps.

Take a quick quiz, then review the concepts you missed with explanations linked to your source.

03

Give it another go.

Try different follow-up questions. See your first and follow-up results side by side.

A few things to know.

Is this based on my own lecture?

Yes. Octo creates practice questions from the material you add. After your first quiz, you review the concepts you missed, then try different follow-up questions.

What can I upload?

PDFs, PowerPoint (.pptx), Word (.docx), text and Markdown files, CSVs, photos, and scanned pages. Older .ppt and .doc files need to be exported first. Questions are based on readable text; diagrams and complex formulas may need your own notes.

Can I check where an answer came from?

Explanations include an excerpt from your material so you can check the source. You can also flag a question that doesn’t look right.

When can I download Octo?

The iPhone app is in development. The App Store link will be available here when it launches.

Take your next quiz wherever you are.

Coming to iPhone.