Your Patient Advocate.
Always On. Always Private.

CareShield fights for you — generates prior authorizations, finds the cheapest medications, flags missed care, and answers your health questions. All on-device. Nothing ever leaves your phone.

0 bytes
Sent to the Cloud
7.5M+
Hospital Price Rows
465+
Hospitals
100%
On-Device AI

An Advocate That Works For You

Connect your health records once. CareShield becomes your tireless advocate — fighting insurance bureaucracy, finding savings, and keeping you on track.

Shield AI — Your Private Advocate

Ask about your medications, best prices, prior authorizations, or care gaps. Shield generates PA packets, finds savings, and answers instantly — running entirely on your device. Works on iPhone, iPad, and desktop. No cloud. No third parties. No exceptions.

Passkey Login — No Passwords

Sign in with Face ID or Touch ID. Passkeys are phishing-proof, never leave your device, and can't be stolen in a data breach. No passwords to remember, reset, or leak. HIPAA-grade authentication without the friction.

Real Hospital Prices

7.5M+ negotiated rates from 465+ hospitals. Ranked cheapest to most expensive with CMS quality stars side-by-side. Location-aware sorting puts the nearest facilities first. Know exactly what you'll pay before you go.

Connect Your EHR

Link your patient portal via SMART on FHIR — the same secure protocol your doctor's office uses. Your conditions, meds, labs, allergies, and immunizations in one unified view.

Encrypted Intake Forms

Pre-fill your medical history, medications, allergies, and family history once. Encrypted with AES-256 using your personal PIN — stored locally, never uploaded. Generate a print-ready packet for any provider visit.

Prior Authorization + Coverage

Shield knows your payer's PA rules and generates FHIR-compliant authorization packets on demand. No more phone tag with insurance — your provider gets a ready-to-submit packet with clinical justification and ICD-10 codes.

SMART Health Card QR

Generate a cryptographically-signed QR code of your health records. Share with any provider instantly — they scan it, get your verified conditions, meds, allergies, and immunizations. No fax machines. No clipboards.

Care Gap Alerts

Evidence-based preventive care recommendations from USPSTF and ACIP guidelines. Know when you're overdue for screenings, vaccines, or checkups — before your doctor has to remind you.

Visit Prep + Profile Switching

Prepare for appointments with pre-visit checklists, medication reviews, and question prompts. Switch between family member profiles to manage dependents — parents managing kids' care, adults coordinating for elderly parents.

We Don't Track You. Period.

Most health apps upload your data to the cloud and call it "secure." We took a different approach: we don't collect it at all.

careshieldus.com does not store, track, or log user data.

No analytics. No cookies beyond what your browser needs to function. No behavioral tracking. No pixel trackers. We don't know who you are, and we want to keep it that way.

AI Runs On YOUR Device

Shield downloads a model to your browser and runs locally via WebGPU. Your health records are processed on your phone or laptop — never sent to any server, API, or cloud service.

We Can't Read Your Conversations

Shield AI conversations happen entirely on your device. We never see, store, or log what you ask. Your conversation history lives in your browser only — clear it anytime.

We Never Sell Your Data

No advertisers. No data brokers. No third-party "analytics partners." Your health information is not a product. We make money by being useful, not by exploiting you.

AES-256 Encryption + TLS 1.3

OAuth tokens encrypted at rest with AES-256-GCM. Intake forms encrypted with your personal PIN. All connections over TLS 1.3. Same encryption standard used by banks.

CARIN Code of Conduct

Built to the CARIN Alliance Code of Conduct for Consumer-Facing Applications — the healthcare industry's gold standard for patient data handling and transparency.

No Training on Your Data

We will never use your personal health information to train AI models. The AI already knows medicine — it doesn't need to learn from your private records.

AI can make mistakes

Shield AI is not a doctor. It may provide incorrect or incomplete information. Always verify with your healthcare provider. Found an error? [email protected] — we only see what you choose to share.

Install It. Works Offline.

CareShield is a Progressive Web App. Install from Chrome or Edge for the full experience — runs in its own window with on-device AI. Your records stay cached locally and Shield AI runs offline once loaded.

Desktop (Chrome / Edge) iPhone + iPad Works Offline

Backed By Federal Data

Every hospital price traces back to a public filing. No estimates. No black boxes. Fully auditable. Health records come directly from your provider via SMART on FHIR — the HL7 interoperability standard.

45 CFR § 180 CMS Care Compare SMART on FHIR HL7 FHIR R4
New & Upcoming

What We're Building Next

We're not stopping here. These features are actively in development.

Live

Document Scanner

Upload or photograph an EOB, medical bill, or insurance letter. Shield reads it on-device and explains what you owe, what's covered, and what to question.

In Progress

Payer Connections

Link your insurance payer directly. Combine your health records with payer claims data to verify preventive care coverage and find in-network providers.

Live

Electronic Prior Auth

FHIR-compliant PA packets with clinical justification and ICD-10 codes. Structured for electronic submission via Da Vinci PAS to Aetna, UHC, and other payers.

Planned

Voice Input

Talk to Shield instead of typing. Ask about your meds, screenings, or coverage hands-free — on-device with the same privacy guarantees.

Planned

Care Manager Network

Connect with licensed nurses who can see your unified records (with your consent) and provide real-time triage, care coordination, and prior auth navigation. No more starting from scratch every call.

Planned

TEFCA Patient Network

Becoming a patient-facing Qualified Health Information Network — universal record access across every EHR and payer in the country, with you as the data steward.

Get Your Advocate Today

Free to use. No account required for price comparison. Connect your EHR to unlock Shield AI — prior authorizations, medication savings, care gap alerts, and more.

© 2026 Janus NW Research LLC. Hospital data from federally-mandated price transparency files & CMS.

Not medical advice. Not affiliated with CMS or any hospital or payer. Shield AI runs on-device — your data never leaves your browser.

This site is not liable for any loss, damage, or harm resulting from the use of information presented here, or for any reliance on its accuracy, completeness, or timeliness. Data is provided as-is from publicly available sources for informational purposes only and does not constitute medical, legal, or financial advice.