---
title: "ZeroDay Dev - Reviews, Revenue and Downloads in Belarus | Apple App Store"
description: "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 Financ"
---

# ZeroDay Dev — Belarus
> Learn to break things

![ZeroDay Dev App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/b8/d3/ce/b8d3ceaf-9241-ab16-4120-a0e171026979/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png)

**Developer:** [John Lawniczak](https://apptail.io/developer/john-lawniczak-PLOUKb)
**Category:** Education
**Rating:** N/A (0 ratings)
**Price:** Free
**Bundle ID:** dev.zeroday.app
**Store:** Apple App Store
**Country:** Belarus
**Version:** 3.1 (released 2026-09-29)
**Original Release:** 2026-03-10
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/by/app/app/id6760129673)
**AppTail Page:** [https://apptail.io/app/zeroday-dev-IHUy/belarus](https://apptail.io/app/zeroday-dev-IHUy/belarus)

## ZeroDay Dev Description
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.

## ZeroDay Dev Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/56/38/64/5638642d-afe0-d28e-68bc-c7b692e12865/screenshot_Simulator_Screenshot_-_iPhone_17_-_2026-05-21_at_13_23_43.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/48/90/b4/4890b494-0e3a-829e-58a4-87056e17e003/screenshot_Simulator_Screenshot_-_iPhone_17_-_2026-05-21_at_13_24_03.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a3/bd/cb/a3bdcb05-b91f-e54c-730e-d8b577dfc4ff/screenshot_Simulator_Screenshot_-_iPhone_17_-_2026-05-21_at_13_23_09.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e7/d8/05/e7d805c0-f469-5f3d-8960-1ea76a56d8c7/Main.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/ab/33/b9/ab33b944-9d1e-ead0-69d2-75a054fe2f48/Simulator_Screenshot_-_iPhone_17_Pro_Max_-_2026-03-23_at_15.57.37-AppStore.png/1284x2778.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/91/5a/21/915a2131-68bb-9d1f-0e3f-5336986fcdc8/04-compare-tokens.png/1284x2778.png)



## ZeroDay Dev In-App Purchases
| Item | Price |
|------|-------|
| Unlock All Content | USD 5.99 |



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## ZeroDay Dev Available In
- [Belarus](https://apptail.io/app/zeroday-dev-IHUy/belarus)
- [Canada](https://apptail.io/app/zeroday-dev-IHUy/canada)
- [Kuwait](https://apptail.io/app/zeroday-dev-IHUy/kuwait)
- [Nigeria](https://apptail.io/app/zeroday-dev-IHUy/nigeria)
- [Netherlands](https://apptail.io/app/zeroday-dev-IHUy/netherlands)

---

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