Comparison

QuantumPass vs Q

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

Head to head
About

QuantumPass

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QuantumPass brings two worlds together: a password and key generator, and a small lab to discover quantum randomness. GENERATE • Passwords from 8 to 64 characters: lowercase, uppercase, digits, symbols, ambiguous-character exclusion, forbidden characters and required characters. The estimated entropy is shown with each result. • Diceware passphrases of 3 to 10 words, in French or English depending on the app language, with the separator of your choice. Strengthen a phrase with randomly drawn capitals, substitutions and suffix. • QRNG: 1 to 100 random bits, in binary, decimal, hexadecimal or Base64. • Blockchain RNG: 128 to 512-bit values in Hex, Base64 or Base58, for your keys and seeds. • All these values come from Apple's cryptographic generator. UNDERSTAND • BB84 demo: follow the key exchange between Alice and Bob, and watch Eve the eavesdropper given away by the error rate. • Qubit Lab: measure a simulated qubit in the Z or X basis and watch the statistics build up. • Bloch sphere: set the Īø angle and compare theoretical probabilities with measured frequencies. • Reproducible mode: a seed to replay the same demonstration, in class or in a workshop. • PRNG vs TRNG: two animated panels to see the difference between simulated and hardware randomness. • Built-in tutorial and a 10-question quiz. PRACTICAL • Secure clipboard: whatever you copy stays on the device and is cleared after 60 seconds. • In French and English, on iPhone, iPad and Mac. • Tip Jar: support development right from the app. PRIVACY QuantumPass works offline. All calculations are performed on your device. No account, no ads, no data collected. QuantumPass is an educational tool: its "quantum generator" is a simulation, fed by the system's secure random source.

About

Q

Features
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Q-Shield Sentinel: post-quantum readiness, honestly assessed. A customer sent you a post-quantum readiness questionnaire? Q-Shield drafts answers only where your own assessment or scan records back them, cites the record for each, and leaves the rest blank or marked for your direct answer. SENTINEL ECHO — ANSWER THE QUESTIONNAIRE YOU WERE SENT • Paste it or import a text file. Echo sorts each question: cryptographic inventory, standards and compliance, migration roadmap, crypto-agility or suppliers. • It drafts an answer only where your assessment or saved scans back it, and each answer cites that record, so you can check it before sending. • Unsupported questions come back blank, with the reason. Pricing, contract, SLA and supplier questions are marked "only you can answer this." • Not AI: fixed rules — the same questionnaire always gives the same result. • Keys, certificates or passwords pasted by mistake are caught on your device before upload. • Export the answers as a document. QRS 5-AXIS QUANTUM-RISK ASSESSMENT Three short steps give you a 0–100 Quantum Resilience Score across five weighted axes: algorithm vulnerability, key-length safety, migration readiness, data exposure and compliance gap. Each result shows the algorithms most at risk, a radar chart, a prioritized roadmap to the NIST post-quantum standards (ML-KEM, ML-DSA, SLH-DSA), your Q-Day estimate and harvest-now-decrypt-later (HNDL) exposure, and an optional key-rotation check (Ghost-Key). Each result also states its scoring-method version and the basis of its numbers (your inputs, a model estimate or a what-if scenario). ASSESSMENT REPORT (Professional and Enterprise) A 22-page PDF Simulation Assessment Report. The app shows its report ID, page count and the SHA-256 fingerprint of the downloaded file. SENTINEL Shows how fresh each of five sources is: NIST, the GRI threat timeline, arXiv, your domain and your last assessment. Force Refresh never counts against your monthly assessments. THREAT INTEL AND SIRI • HNDL threat map (figures: Professional and Enterprise), labelled as a model estimate, not measured traffic. • Shor penetration simulator (Professional and Enterprise): eight attack-vector scenarios against your declared algorithms, with the weakest link. • Siri: security health check, threat explanation, audit log — status only, never secrets. A SIMULATION, NOT A CERTIFICATION A deterministic, rule-based simulation that maps your inputs to NIST post-quantum standards — not an infrastructure audit, not a certification authority. RSA and ECDSA are not called broken today; they are exposed to data harvested now for later decryption. Q-Shield never asks for or stores your private keys, plaintext or passwords. PLANS • Free: 3 assessments a month, recent history, 1 questionnaire sorted a month. • Professional ($149.99/month): 100 assessments and 20 new PDF reports (22 pages) a month, 200 penetration simulations, 100 Echo drafts. • Enterprise ($499.99/month, or annual through our sales team): the same features with higher monthly limits — 500 assessments, 100 PDF reports, 1,000 simulations, 500 Echo drafts. Monthly counts refill on the 1st. Results you already have stay available. LEGAL Risk-assessment simulation based on mathematical modelling. Results are estimates, not a security certification, and do not guarantee protection against quantum attacks. Decisions based on them are your responsibility. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the period; payment is charged to your Apple Account. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Requires iOS 26 or later. Also available on Mac. Languages: English, Korean, Japanese, Simplified Chinese, Spanish, French, German. Terms of Use: https://swiftquantum.tech/terms/ Ā· Privacy Policy: https://swiftquantum.tech/privacy/

Screenshots

QuantumPass4 screens
Q4 screens

Verdict

The call

The clearest difference is update cadence: Q at fortnightly against QuantumPass's every 10 months. QuantumPass's advantage is iOS requirement (17.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

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

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

Both are free to download. QuantumPass sells 3 one-off in-app purchases and Q sells 3 in-app purchases, starting at $149.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

QuantumPass ships an update every 10 months, Q fortnightly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences Ā· 4 level
QuantumPass versus Q: the parameters behind the verdict, then further details
ParameterQuantumPassQ
PriceFreeFree
Update frequencyEvery 10 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS17.6 — better26.0
Further details — not scored
Size3 MB28 MB
Age rating4+4+
DeveloperValerie OteroEUNMIN PARK

In-app purchases

3 purchases

QuantumPass

One-time3
  • Small coffee$1.99
  • Medium coffee$3.99
  • Large coffee$5.99
3 purchases

Q

Subscriptions2
  • Q-Shield Pro — CISO Gold$149.991 Month
  • Q-Shield Enterprise Monthly$499.991 Month
One-time1
  • Q-Shield Starter — The Analyst$499.00

Questions

Is QuantumPass free?
QuantumPass is free to download, with in-app purchases available.
Is Q free?
Q is free to download, with in-app purchases available.
Do QuantumPass or Q have ads?
Neither QuantumPass nor Q shows ads.
Which is updated more often, QuantumPass or Q?
QuantumPass ships an update every 10 months, and Q fortnightly. Most recently, QuantumPass was updated on October 30, 2026 and Q on October 31, 2026.

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