Six things it does, and one it refuses to.
BillingLens reads your agreement, reads your invoices, compares them, and tells you what it found with the wording quoted back. It does not decide whether a charge is lawful, and it does not contact your firm unless you ask it to.
What it does
Read, compare, explain.
Your terms, extracted and shown back to you
Hourly rates per person, billable expenses, approval thresholds, how time must be recorded. You see what was extracted and can correct anything read wrong before it is used.
Every line item, however it arrived
PDFs, scans and phone photos. Each entry is pulled out with its date, timekeeper, rate, hours and amount, then matched against the terms from your agreement.
Deterministic checks first, judgment second
Rates, arithmetic, dates, increments and duplicates are compared exactly. Language judgments — vagueness, reasonableness, staffing — run afterwards and are marked separately.
Findings that cite their source
Each finding quotes the entry, quotes the clause it conflicts with, states the amount involved and suggests a question you could ask. No finding appears without its evidence.
Questions answered from your own documents
Ask what you were billed for a given week, or what your agreement says about travel, and get an answer drawn from the documents you uploaded with references back to them.
A drafted message you send yourself
When you decide to raise something, BillingLens drafts it in plain, professional language. You send it from your own email, keep or discard our wording, and any corrected invoice gets re-read.
Tell you whether you have a claim
BillingLens reports possible discrepancies between documents you supply. Whether a charge is lawful, improper or recoverable is a legal judgment, and that belongs to you, your own lawyer, or a bar fee arbitrator.
What it looks like
Two screens do most of the work.
One shows what your agreement says, term by term, with each extracted clause traceable to the page it came from. The other shows where an invoice departs from those terms, grouped by how confident the finding is.
Agreement review: every term we extracted, and the wording it came from, so you can correct anything read wrong before it is used.
Invoice findings: each one quoting the entry, the clause it conflicts with and the amount, ordered so the clearest cases come first.
Low-confidence findings never reach this screen until a billing attorney has read the entry in context.
Using it
Three things to do, once.
Upload once
Your signed fee agreement or engagement letter. Everything afterwards is compared against it, so this is the only setup step.
Send invoices as they arrive
Upload a PDF or forward the email your firm sent. Each invoice is read, compared and reported on its own, and compared against the ones before it.
Decide what to raise
Dismiss what you are satisfied with. For anything you want to question, send the drafted message and keep the findings report as your record.
Your first matter is free
The quickest way to judge this is to run it on your own bill.
One matter, one agreement, unlimited invoices on it, no card. If nothing turns up, the report says so and you have lost nothing.