ZeroDay Dev vs Neural Network Academy Lite

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.

Neural Network Academy Lite makes artificial intelligence hands-on, approachable, and genuinely fun. Whether you're a student, a curious adult, or a developer new to machine learning, this app guides you from "what even is a neuron?" to training real AI on your own photos -- no experience needed. LESSONS Five bite-sized lessons cover the ideas behind every modern AI system: - What is a Neuron? -- drag sliders and watch a single neuron compute in real time - Weights & Bias -- see exactly how small number changes shift a network's output - Activation Functions -- explore sigmoid and ReLU on live interactive graphs - How Networks Learn -- follow a forward pass step by step with animated signal flow - Backpropagation -- understand the algorithm behind every AI you've ever used Each lesson ends with a quiz that locks in what you've learned and earns XP to unlock the next tool. PLAYGROUND Train a real neural network on classic logic problems: XOR, AND, and OR. Watch the live loss curve fall as your network finds the pattern. Adjust layer count, neuron count, and learning rate -- then hit Train and see the math work. NETWORK BUILDER Design your own architecture from scratch. Add layers, set neuron counts, and watch the signal flow forward through your custom network before training begins. HOT DOG LAB Draw examples directly on a pixel canvas, label them, and train a classifier on your own drawings. Works with any two categories you choose -- a playful introduction to image classification. PHOTO CLASSIFIER The most powerful tool in the app. Pick two categories, add photos from your library, tap Train, and watch a real model learn to tell them apart. Test it instantly with any new photo. BUILT FOR LEARNING - XP and level system keeps you motivated and on track - Lessons unlock progressively -- concepts build on each other naturally - Every idea has an interactive demo, not just a wall of text - Live training animations show loss dropping in real time - Clean native iOS design -- no ads, no subscriptions, no account needed Neural Network Academy Lite is for anyone who has ever wondered how AI actually works. Not just how to use it -- how it thinks.