Never Pay Double for Medical Bills
An offline, private medical billing auditor that helps patients detect overcharges and errors — without sending your sensitive data to the cloud.
100% offline. No data leaves your device.
Compare bills with insurance EOBs automatically.
Clear, explainable flags for billing errors.
Download Never Pay Double
Get started with our offline medical billing auditor. Available for Mac and Windows.
Mac OS
Compatible with macOS 10.15 and later
Windows
Compatible with Windows 10 and later
All downloads are verified and secure. Your data never leaves your device.
Why This App Exists
Most patients never notice billing errors because medical invoices and EOBs are designed for insurance companies, not humans.
Confusing Codes & Line Items
Medical bills use industry jargon that makes it nearly impossible for patients to understand what they're being charged for.
No Easy Comparison
Comparing bills to EOBs manually is tedious and error-prone, making it easy to miss overcharges and duplicate fees.
Privacy Concerns
Uploading sensitive medical data to cloud tools feels risky, and many people don't trust where their information goes.
What Never Pay Double Does
Never Pay Double runs entirely on your computer. Import your medical bill and insurance EOB, and let the app do the heavy lifting with on-device OCR, data extraction, and intelligent comparison.
Import PDFs or Scanned Documents
Upload medical bills and EOBs in any format.
Automatic Data Extraction
OCR technology extracts key information from documents.
Intelligent Comparison
Bill is compared against your EOB with transparent logic.
Clear Error Flags
See exactly where you might have been overcharged.
Import
Upload bill and EOB
Confirm
Review extracted data
Compare
Get detailed analysis
Save
Export results securely
Core Features
Powerful tools, all running on your device
Import PDF or Scanned Documents
Support for multiple file formats to make it easy to get your bills into the app.
On-Device OCR
Text recognition happens locally. No cloud processing. No data sharing.
Bill vs EOB Comparison
Automatic side-by-side analysis of your bill and insurance explanation of benefits.
Error Flags with Explanations
Missing EOB, amount mismatches, duplicate charges, unbundling issues—all clearly marked.
Per-Date Summaries
Auto-generated summaries organized by visit date for easy reference.
Organized Local File Vault
All documents encrypted and organized in your local file system. Complete control.
Your Medical Data Never Leaves Your Computer. Ever.
Privacy isn't a feature—it's our entire foundation. Built from the ground up to keep your sensitive health information secure.
No PHI Ever Leaves
Protected Health Information (PHI) stays on your device. We never collect, store, or transmit your medical data.
Military-Grade Encryption
All local data encrypted with SQLCipher using AES-256. Even if your device is compromised, your data stays protected.
Zero Telemetry
No tracking, no analytics, no usage reporting. We don't know how you use the app, and we don't want to.
HIPAA Risk-Minimized
Designed with privacy-by-architecture principles to minimize HIPAA compliance risk. Not a data broker. Ever.
We are not a data broker. We never collect your data, never monetize your information, and never sell access to third parties. License checks transmit only anonymous tokens—no personal information attached. The company never accesses your files. Period.
How It Works
Simple workflow. Powerful results. All offline.
Import Your Documents
Upload your medical bill and insurance EOB. Supports PDF and scanned images.
Review Extracted Data
Confirm that the app correctly extracted key information from your documents.
Get Your Summary
Automatic comparison reveals discrepancies, errors, and potential overcharges.
Save for Later
Export results or keep them organized in your encrypted local vault.
Who Is This For?
Never Pay Double is built for anyone who wants transparent, private control over their medical billing.
Patients with Complex Medical Bills
Anyone who receives multiple bills from different providers and wants clarity on charges.
Families Managing Healthcare Expenses
Parents and guardians tracking medical costs across family members.
Privacy-Conscious Individuals
People who don't trust cloud services with sensitive health information.
Detail-Oriented Patients
Those who want complete control over their health finance records and want to verify every charge.
Built with Technical Integrity
Engineered for privacy, reliability, and transparency
Built on Flutter Desktop
Native performance on Mac and Windows with a single codebase. Fast, responsive, and lightweight.
Encrypted Local Database
SQLCipher with AES-256 encryption ensures your data is always protected, even at rest.
Offline OCR
Tesseract-powered text recognition runs entirely on your machine. No external API calls.
Deterministic Logic
Comparison algorithm uses explainable, transparent rules—not black-box AI. You understand why errors are flagged.
No server dependency. The app never requires internet connectivity. All critical functionality works offline, all the time. License renewal checks are anonymous and transmit no personal data.
Simple, Honest Pricing
No surprises. No data hosting fees. No subscriptions tied to your medical data. One-time licenses that work offline.
All licenses include single-device activation. Contact us