Margin - Free notes for iPad and Android with on-device AI
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Margin is a free notes and PDF app for iPad and Android. Write with a stylus, mark up textbooks, record lectures, then ask your notes questions. The AI can run entirely on your device, so your notes stay yours. No account, no subscription.
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Hi Product Hunt! I'm the maker of Margin.
What it does:
• Writes like paper: pressure, tilt and palm rejection. Scratch out to erase, hold still to snap a clean circle or box.
• Marks up any PDF, then exports it.
• Records lectures. Tap a line you wrote to hear what was being said right then.
• Turns notes into summaries, flashcards with spaced review, quizzes and mind maps.
The AI is the part I care about most. A 1.1 GB model runs on the device, so it works offline and nothing leaves your tablet or phone. If you want a stronger model you can add your own NVIDIA key, and Margin falls back to the device when it can't reach it.
It's free, with no account. I'd love to hear what you'd want next.