Upload Your Denial
Snap a photo or upload the denial letter as a PDF, JPG, or PNG. DefyAI reads and understands the document.
AI-Assisted Appeal Drafting
Turn denial letters into ready-to-review appeals
Upload your health insurance denial, add your preferred tone and reasoning, and get a grounded, payer-facing appeal draft in minutes, not hours.
DefyAI helps draft appeals but does not provide medical, legal, or insurance advice.
Appeal Draft Ready
In minutes, not hours
Simple Process
From denial to appeal in four steps
No legal expertise required. Upload, customize, generate, and export.
Add Your Guidance
Optionally choose a tone and reasoning, including medical necessity, financial hardship, urgency, or continuity of care.
Generate Your Appeal
DefyAI drafts a grounded, payer-facing appeal letter based on your denial and guidance, ready for your review.
Review and Export
Edit if needed, save to your history, and export a clean PDF ready to submit to your insurance payer.
Built for You
Everything you need to fight back
Powerful features wrapped in a simple, healthcare-appropriate experience.
Smart Document Reading
Upload denial letters as PDF, JPG, or PNG. DefyAI extracts key details automatically.
Customizable Tone and Reasoning
Choose firm, concise, or neutral tone. Add urgency, hardship, or medical necessity.
Appeal History and Tracking
Every appeal you create is saved, so you can review past drafts and uploaded documents.
Clean PDF Export
Export a professional, payer-ready PDF in one tap, formatted and ready to print or email.
Secure Sign-In
Create an account with email verification or sign in with Google. Your data stays with you.
Full Account Control
Delete your account at any time, including appeals, documents, and saved letters.
Who It's For
Built for everyone facing a denial
Whether you're a patient, a family member, or a healthcare provider, DefyAI helps you draft a stronger appeal.
Patients
Handling your own denial? Upload the letter, pick your reasoning, and get a clear appeal draft.
Family Members
Helping a loved one navigate a denial? DefyAI walks you through the process and generates a ready-to-review draft.
Providers and Care Teams
Streamline appeal preparation for patients. Upload denials, add context, and generate professional appeal drafts.
HIPAA & Security
Built for sensitive health information
DefyAI is designed to support HIPAA-conscious appeal workflows with privacy controls for denial letters, generated drafts, and account data.
HIPAA-ready workflows
DefyAI is built to support HIPAA-compliant use cases for healthcare and care-team workflows. Covered entity or business associate use may require a signed Business Associate Agreement and approved deployment configuration.
Protected document handling
Denial letters, uploaded files, and generated appeal drafts are treated as sensitive health information and protected with account-based access controls.
Encryption and account control
Data is protected in transit and at rest, and users can delete their account and associated appeals, documents, and saved letters from within the app.
Available Now
Start drafting your appeal today
Download DefyAI for iOS or Android, or ask about the web version. Free to start. Your first appeal draft is just minutes away.
Web version coming soon - request browser access
Important: DefyAI is an AI-assisted tool that helps you draft appeal letters. It does not provide medical, legal, or insurance advice, and does not guarantee any outcome. Always review your appeal draft carefully and consult qualified professionals as needed.