I hated how clunky flashcard apps were - slow, paywalled, and not made for actual understanding. So I built Three-Sided: 🧠 Flashcards with 3 sides: statement, hint, proof ⚡ AI autofill (DeepSeek) to write hints and proofs for you 📚 Spaced repetition 💻 Full LaTeX support, AI-assisted 📱 Works smoothly on desktop & mobile I built it while revising for Cambridge exams. I expected 10 users. Instead we had 100+ signups and 4.6k page views from 1.3k users in just 10 days. Feedback’s been amazing: “More useful than Anki.” “This actually helps me understand.” What’s coming next: – Image support – Custom public profiles – AI auto-bundling – Friend system + leaderboards If you’re a maths or STEM student - try it. If you’re a builder, I’d love your feedback. 🔗 https://three-sided.com Let’s build something better than memorisation.

Three-Sided

The AI flashcard app with maths students in mind.

The AI flashcard app with maths students in mind.