Q-Shield SentinelCheck how exposed your cryptography is to Q-Day
A post-quantum cryptography assessment mapped to NIST FIPS 203, 204 and 205, with a Q-Day timeline and a migration roadmap.
Assessment, not certification. Q-Shield assesses your cryptography against the NIST standards; it does not certify compliance.
How it works
See what breaks first
Tell Q-Shield which algorithms you run. It flags the quantum-vulnerable ones, such as RSA and ECDSA, and names the standard that replaces each.
A sample of the quantum-vulnerable protocols Q-Shield looks for.
A migration roadmap
Prioritized migration steps toward ML-KEM, ML-DSA and SLH-DSA.
Five-axis quantum-risk score from a 3-step questionnaire.
Reports your board can read
Professional plans export a PDF assessment with a quantum-risk score and next steps.
Enterprise vulnerability intelligence.
Where your data is processed
- Where it runsPaid plans simulate on your device; free plans use our cloud engine. Cloud AI features are labeled in the app.
- PQC assessmentQ-Shield maps your cryptography to NIST FIPS 203, 204 and 205.
- Labeled estimatesWhen a number is an estimate, the app says so.
- 7 languagesEN · KO · JA · ZH · ES · FR · DE
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Plans for this app
A basic quantum-risk assessment. No PDF reports.
Starter is a one-time audit. Professional keeps watching as threats and standards change.
One full quantum-risk assessment, stress test and NIST checklist. PDF reports come with Professional.
Choose StarterEverything in Starter, plus modeled threat statistics, live NIST news and arXiv post-quantum research feeds, penetration simulation and PDF reports.
Choose ProfessionalVolume pricing, guided onboarding and direct support. SSO and an SLA can be arranged by contract.
Choose EnterprisePrices are web (Stripe) prices in USD. In-app prices on the App Store are set per region by Apple and can differ; the app shows your exact price before you confirm.
Cancel anytime in your settings.
Compare every product’s plansFrequently asked questions
Is this a compliance certificate?
No. Q-Shield is an assessment tool. It maps your cryptography to NIST FIPS 203, 204 and 205 and tells you what to fix; an accredited auditor certifies.
Is it really free to start?
Yes. Every app is a free download, and most have a free tier that never expires. On Q-Shield Sentinel, free accounts get a basic assessment; full audits start with the one-time Starter plan.
Can I cancel anytime?
Yes. App Store subscriptions are managed in your Apple ID settings; web subscriptions in your account. Cancel at least 24 hours before renewal and you will not be charged again.
Why do App Store and web prices differ?
Apple sets in-app prices per region and takes a commission; web checkout runs through Stripe. We show web prices here and the app always shows your exact in-app price before you confirm.
Where does my data go?
Paid plans run simulations on your device; free plans use our cloud engine, hosted on AWS in Seoul. AI tutor chats go to OpenAI in the apps and Anthropic on the web, without your name or email; QuantumCareer cover letters include the name on your profile. Deleting your account removes your sign-in data immediately (GDPR Art. 17). The Privacy Policy has the details.
Try Q-Shield Sentinel for free
Free download on iPhone, iPad and Mac, or use it on the web.
Cancel anytime in your settings.