ZeroDay Dev

ZeroDay Dev

Learn to break things

4 ratings
3 reviews
Free
In-App Purchases

Details

  • Released
  • Updated
  • March 10, 2026
  • August 18, 2026

Features

ZeroDay Dev video #1 for iPhone
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ZeroDay Dev screenshot #7 for iPhone
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About

Learn secure coding and blockchain security through hands-on challenges and real-world exploit analysis. Practice building exploit intuition with interactive exercises and track your progress through curated learning paths. The app is designed for offline use, allowing you to learn anytime, anywhere.

Hands-on coding challenges
Real-world exploit analysis
Interactive practice exercises
Curated learning tracks
Progress tracking and gamification
Offline-first functionality
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What's New in ZeroDay Dev

2.3

August 18, 2026

• Explore an offline Paper Library with curated security, cryptography, blockchain, networking, and AI research available inside the app. • Use the new Command Deck to find practical terminal commands, understand what they do, and connect them to deeper learning paths. • Learn how to run AI locally with a guided journey covering Ollama, model selection, quantization, privacy, security, evaluation, local document search, and hybrid routing. • Go deeper on machine learning, AI model supply-chain threats, text watermarking, Monad, TLS, networking, VPNs, Tailscale, and quantum-resistant security. • Build a complete Rust command-line tool through new lessons on call sites, worker channels, and a hands-on capstone. • Browse expanded real-world incident, glossary, model, and API security coverage, including a refreshed catalog of current AI models. • Deep Dive organization, search, Exam navigation, references, and learning-flow reliability have been improved throughout the app.

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In-App Purchases

$4.99

Unlock All Content

Unlock all 10 domains and 2,200+ questions.

User reviews

Game Changer

Impressed with the glossary and exploits widget. Tight UX. Clean implementation, super snappy. Having it on the home screen makes it convenient.

Pretty neat!

Enjoyed all the latest exploit data to search through and enjoyed the memory exam section the most. :)

Surprisingly thoughtful, stuck with me

dowloaded out of curiosity and didn't expect much, but it actually held my attention longer than most apps like this. the interactions and actually tapping the vulnerable lines/code make you pause and think in a different way. some pretty funny easter eggs too. i've found myself coming back to it without really planning to, which says a lot. simple ideas but they work.
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Developer apps

FAQ

What is ZeroDay Dev's learning methodology?

ZeroDay Dev employs a hands-on approach with over 4,000 interactive challenges and real-world exploit analysis. It focuses on building intuition through practice and offers curated learning tracks for various domains.

How does ZeroDay Dev track user progress?

The app uses a system of Streaks & XP, daily streaks, badges, and progression to keep users engaged and motivated. It also includes performance tracking for timed tests in the Exam section.

Can I use ZeroDay Dev offline?

Yes, ZeroDay Dev is designed to be offline-first. All content is stored on your device, allowing you to learn without an internet connection.

What specific security concepts does ZeroDay Dev cover?

ZeroDay Dev covers a wide range of topics including reentrancy, oracle manipulation, flash loans, proxy races, ZK trusted setup, and more, focusing on Rust, Solidity, DeFi, Solana, and general cybersecurity.

Is ZeroDay Dev suitable for beginners?

Yes, the app is designed to help users learn secure coding and blockchain security from the ground up, with interactive exercises and clear explanations of real-world exploits.

What devices is ZeroDay Dev available on?

ZeroDay Dev is available on iPhone and iPad devices.

How often is ZeroDay Dev updated?

The latest version is 1.9, and the app was last updated on May 14, 2026. This suggests a relatively active development cycle.

Does ZeroDay Dev have ads?

No, ZeroDay Dev does not contain advertisements. It is a free application that focuses on providing an uninterrupted learning experience.