Free · Private · Yours to send or not

Your bill,
read line by line.

Upload the itemized bill. Every charge comes back in plain words, with the deadline to contest it and an appeal letter drafted for you to send or not. A line that couldn’t be read clearly is flagged for you to check.

Start a Case Where Your Documents Go

Itemized bill
EOB
Denial letter
Charity care
Appeal draft

The Reading

Every line, explained in plain words

Every answer here points back to a line on your own paper, so you can check it yourself.

Every Charge, Restated

Each charge is restated in plain words, so you can check it against the paper in your hand.

An Appeal You Control

BillGuard drafts the letter and cites each rule it used. You read and edit every word, and only you can send it.

Flagged, Never Guessed

When a line can’t be read clearly, it’s flagged for you to confirm, and the blank stays blank until you fill it.

Every Deadline, Cited

14 appeal and dispute deadline rules, each citing the federal regulation it comes from. Every date shows how it was counted, and the notice you received still controls.

Charity Care, With Keeper

Bring your Keeper household profile and the hospital’s financial-assistance application fills in from it, only when you choose to.

Your Decision

It never decides for you.

BillGuard reads the bill, checks it and drafts the letter. Whether to send it, and what a denial means for your care, are your decisions. The notice from your plan or provider is what controls, and for decisions about your rights, talk to a professional.

Your case keeps the reading, the deadlines and the draft together while you decide.

Privacy

Your documents stay yours.

Medical paperwork is personal. These four lines describe how the app is built, and they change only when the code does.

Encrypted: Stored encrypted, in private storage. The links your browser gets stop working within a minute.
Only You: The database itself checks who’s asking, so a bug in a page can’t show your bill to someone else.
One Request: Each document goes to Anthropic’s Claude to answer that one request, and it isn’t used to train models.
Clean Logs: Logs never contain your documents’ contents, your name, your diagnoses, or any amount.

What happens to your documents

Your documents are stored encrypted, in private storage. Nobody can open them with a link alone — the app hands your browser a temporary link that stops working within a minute.
Only you can read your cases. Access is enforced by the database itself, not just by this app's code, so a bug in a page cannot show your bill to someone else.
To read a document, we send it to Anthropic's Claude API. It is used to answer that one request and is not used to train models.
Our logs record that a document was processed — how many pages, how long it took, how many fields need your review. They never contain the contents of your documents, your name, your diagnoses, or any amount.
If you track a deadline, we email you before it. Those emails contain the deadline, the date, and a link — never an amount, a code, a provider, or the name you gave the case. Email is the least private thing this app touches, so it carries the least.
Delete means delete. Deleting a case removes the files from storage and the records from the database — documents, extractions, findings, letters, deadlines, and reminders. It is not a hidden flag, and it is not recoverable.
When the app cannot read something, it tells you so and asks. It never fills in a value it could not actually read from your document.

BillGuard helps you read your own bill and draft an appeal. It is not legal advice, and it is not a guarantee that an appeal will succeed.

On the Record

deadline rules, each citing the federal regulation it comes from

document types read line by line: itemized bill, EOB and denial letter

values invented when a line is unclear. It asks you instead.

For Those Who Help

Send people here. Nothing to install.

Patient advocates, clinic financial counselors, legal-aid staff and social workers can link here from a resource page or a discharge packet. It’s free, and the documents stay with the patient, so there’s nothing for you to manage. When they delete a case, it’s gone.

Bring the bill. Keep the pen.

Start with whatever you have. BillGuard reads it with you, and nothing goes out until you send it.

Start a Case

Information and drafting help — not legal or medical advice.

Your bill,read line by line.