Flipset vs ZeroDay Dev

Flipset is a simple, offline flashcard app designed for focused, self-directed study. Create your own flashcards, organize them into categories, and review them on your terms without accounts or internet access. Flipset gives you full control over how you study. Review cards in order or randomly, separate what you know from what you don’t, and repeat until everything sticks. Features include creating and editing flashcards with rich text, organizing cards into categories, manual review sessions with full control over order, adding cards by typing, voice dictation, or converting images to text, fully offline local data storage, and the ability to import and export cards between devices. Flipset does not require an account, does not track usage, and keeps all data on your device.

Learn to break things—before attackers do. ZeroDay Dev teaches secure coding and blockchain security through 4,000+ hands-on challenges. Learn from 120+ real-world exploits: Beanstalk, Indexed Finance, bZx, VeilCash, Sigma.Money, Bybit, and more. Each exploit is linked to verified incident records so you learn from actual on-chain events, not hypotheticals. Practice — Build exploit intuition without reading docs. Tap vulnerable lines, drag tokens into code, get instant feedback. Filter by domain (Exploits, Solidity, Rust, DeFi, Solana) or difficulty. Exercises — Full code challenges with reference solutions. Deeper dives when you're ready. Exam — Prepare for real security assessments. Timed tests across domains with performance tracking. Memory-match decks for opcodes, EIPs, and security terms. Deep Dive Hub — Curated learning tracks for Web2, Web3, Rust, ZK Proofs, and Trading. Recommended tracks driven by your weak areas. Build your own from bookmarks or missed questions. Streaks & XP — Stay consistent and level up. Daily streaks, badges, and progression keep you coming back. Offline-first — Learn on the subway, no Wi‑Fi needed. All content lives on your device. No account required—start immediately. Covers reentrancy, oracle manipulation, flash loans, proxy races, ZK trusted setup, and more. Rust, Solidity, DeFi, Solana & cybersecurity.