ZeroDay Dev vs Math Dash

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.

Math Dash is a running game for times tables, math facts and spelling, made for ages 6 to 8. Pick Pip the pencil-tail fox, Tally the counting bot, Smudge the eraser bunny or Rumble the race-bib dino, then run, jump and grab the number bubble that answers the sum. Every right answer powers your hero up, and a wrong one is just a quick wobble. Pick Pip the pencil-tail fox, Tally the counting bot, Smudge the eraser bunny or Rumble the race-bib dino. Dress your hero up in costumes, then run, jump and grab the number bubble that answers the sum. Every right answer powers your hero up, and a wrong one is just a quick wobble. Run, jump, learn Math Dash is a fast, friendly running game that makes math practice feel like play. Pick the exact number to practice (like only +3 or x4) in Add, Subtract, Multiply and Divide, or try Fractions, Counting, Spelling and Patterns (logic). There is a Collect mode too. Tricky Facts Mixed up 7 x 8? Math Dash saves the facts your child gets wrong and turns them into a gentle practice run where the answer is hidden, so they really work it out. Get a fact right twice and it is mastered. Keep the fun going - A fresh daily challenge with bonus XP - Streaks, levels, stars and badges - Easy, Medium and Hard, and eight worlds to run through: Sketchbook, Meadow, Beach, Space, Forest, Arctic, Volcano and Underwater - Big, easy-to-read numbers made for small hands - A hand-drawn notebook look, and a chalkboard in dark mode - Siri shortcuts: "Practice tricky facts in Math Dash" or "Play today's challenge" - Available in 9+ languages For grown-ups Made for ages 6 to 8. The Grown-ups corner sits behind a parent check and holds sound settings, a haptics toggle and a progress report, so you can see how your child is doing. There are no ads, no tracking, no accounts and no chat. Progress stays on the device. Download Math Dash and let your hero dash for the answer!