# GlassBox Dev — See cryptography, byte by byte

> See cryptography, byte by byte (iPhone/iPad app by Franky Fernandez.)

- Source: https://appshunter.io/ios/app/glassbox-dev/id6786942147 (this page in markdown: same URL + `.md`)
- Developer: [Franky Fernandez](https://appshunter.io/developer/1842293810)
- Category: Education, Developer Tools
- Price: Free
- Age rating: 4+
- Requires: iOS 26.0 · 6 MB
- Languages: American English
- Released: 2026-07-13
- Data updated: 2026-07-17
- User reviews in markdown: https://appshunter.io/ios/app/glassbox-dev/id6786942147/reviews.md

## What is GlassBox Dev?

CryptoKit hands you a final hash or ciphertext and hides everything in between. GLASSBOX rebuilds each algorithm by hand so every intermediate value is visible, tappable, and provably correct against Apple's real implementation — then lets an on-device AI try to crack it, winning on the weak and drowning on the strong.

Honesty is a hard requirement. No screen ever fakes progress against strong crypto. Where AI or brute force cannot win, the app shows it failing and explains why. The hand-written teaching engine is checked byte-for-byte against Apple's real CryptoKit/Security output — if they ever disagree, a test fails.

WHAT YOU CAN DO
• Classical ciphers — Caesar, ROT13, Vigenère, XOR — with an on-device AI cracker that breaks them from ciphertext alone using real statistical cryptanalysis.
• Modern families rebuilt by hand and verified against the real thing: AES-128, ChaCha20, DES; SHA-256/512, SHA-1, MD5; RSA, ECC, X25519. Scrub AES through its 10 rounds, step RSA one exponent bit at a time, watch SHA-256 churn its state.
• The avalanche on camera: flip one input bit and about half the digest flips.
• Crack, Tamper, and Breach labs — a dictionary attack cracks weak passwords instantly while a real, device-timed Argon2id shows why strong hashing takes centuries.
• Labs of physics and math: a thermodynamic crack lab, a quantum threat layer (Shor/Grover verdicts + post-quantum survivors), an entropy forge that harvests real sensor noise, and Rosetta panels showing the same cipher in Swift, Python, and C++.
• The AI, honestly: a hand-written deep net genuinely learns a reduced-round distinguisher — then genuinely fails at full strength, forever. The flat line is the exhibit.
• Hermes — a persistent learner whose brain grows across sessions and syncs across your devices via iCloud.

PRIVACY
All cryptographic computation runs on your device; your inputs never leave it. The only network traffic is optional iCloud sync of the app's own learning data (in your private iCloud database) and anonymous crash/diagnostic reporting. No accounts, no ads, no tracking.


## Version history (last 1 release)

### 1.0 — 2026-07-13

No release notes.

## More apps by Franky Fernandez

- [Gargantua: Black Hole Sim](https://appshunter.io/ios/app/gargantua-black-hole-sim/id6786040292)

All apps by Franky Fernandez: https://appshunter.io/developer/1842293810

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-17.*