Comparison

QASM Studio vs GlassBox Dev

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

QASM Studio

Features
Read full description

QASM Studio brings quantum circuit simulation to your iPhone and iPad. Write quantum programs in OpenQASM 2.0, the standard language used by Qiskit and IBM Quantum. The built-in state vector simulator runs entirely on your device β€” no internet, no server, no account required. KEY FEATURES - Native OpenQASM 2.0 editor with monospaced syntax - Real-time circuit diagram β€” see your circuit as you type - Local quantum simulator - State vector view with mathematical notation - Measurement results with probability distribution - Quantum gates: H, X, Y, Z, S, T, CX, CZ, SWAP, Rx, Ry, Rz, U1, U2, U3 and more INCLUDED TEMPLATES - Bell State β€” quantum entanglement - GHZ State β€” three-qubit entanglement - Superposition β€” single qubit Hadamard - Grover's Algorithm β€” quantum search - Quantum Fourier Transform - Deutsch's Algorithm β€” first quantum advantage - Bernstein-Vazirani β€” hidden bitstring search - Blank β€” start from scratch PERFECT FOR - Students learning quantum computing - Qiskit users who want a mobile playground - Anyone curious about quantum mechanics - Quick experimentation away from your laptop NO ACCOUNTS, NO TRACKING QASM Studio works completely offline. Your code never leaves your device. No data is collected, no analytics, no advertising.

About

GlassBox Dev

Features
Read full description

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.

Screenshots

QASM Studio3 screens
GlassBox Dev3 screens

Verdict

The call

The clearest difference is device support: QASM Studio at 3 against GlassBox Dev's 1. QASM Studio also leads on iOS requirement (15.6 vs 26.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard2 real differences Β· 3 level
QASM Studio versus GlassBox Dev: the parameters behind the verdict, then further details
ParameterQASM StudioGlassBox Dev
PriceFreeFree
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS15.6 β€” better26.0
Further details β€” not scored
Size0 MB6 MB
Age rating4+4+
DeveloperSungjun KimFranky Fernandez

In-app purchases

None

QASM Studio

No in-app purchases

None

GlassBox Dev

No in-app purchases

Questions

Is QASM Studio free?
QASM Studio is free to download, with no in-app purchases.
Is GlassBox Dev free?
GlassBox Dev is free to download, with no in-app purchases.
Do QASM Studio or GlassBox Dev have ads?
Neither QASM Studio nor GlassBox Dev shows ads.

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