Fennimore

Fennimore is invite only. Enter the email address you were invited on and the six-digit code that came with it.

Before you sign up

If you have not been invited, no code will arrive — ask the person who referred you.
This is an evaluation service, not a finished product. It may become paid.
Documents you upload are stored encrypted and are readable by Fennimore staff for support and quality review.
You can delete your account and every document at any time, and the deletion is real.

Signed in

Account
Role
Can

Add bills

Upload every bill you can find. Twelve months makes the analysis useful; twenty-four makes it good. Electric, gas and water all count.

Each bill is read and checked by an AI model, which can take up to a minute per file — "Extracting" and "Checking" below are normal, not stuck. Once it's done, open any bill to see the full report: what it costs, what checked out, and what didn't.

Drop bills here, or choose files PDF, photo or CSV · up to 20 MB each · 50 at a time · you can paste a screenshot

Photograph a paper bill

Bills are analyzed with the version of Fennimore that was running when you uploaded them. Re-running them picks up everything that has improved since.

What we checked

Nothing looked off.

Where the money goes

By category, as extracted from the statement

Solar

Derived from this bill's own production and credits — not printed on the statement

The arithmetic

As extracted from the statement

Line items
Line	Quantity	Rate	Amount

Meters

Household overview

Download spreadsheet

Upload a few bills to see the household overview.

What changed

Measured against the same stretch a year earlier where there is enough history to do it — so a cold winter does not count as news.

Where the money's gone

By month, by category

What you actually pay per unit

Latest derived rate per meter

Every check, bill by bill

Nothing has looked off across any bill.

Every figure above comes from your own uploaded bills — nothing is estimated from outside data. It does not include circuit-level detail or a driving-cost comparison; those need data this app does not collect from a bill.

Admin

Signup is invite only. Nobody can create an account without an invitation, so this is the only door in.

Passcode for

Invitations
Address	State	Note	Sent	Actions

Document counts come from each household’s own store — there is no cross-user table to read.

Members
Account	Role	State	Docs	Needs attention	Actions

Append only. Every invitation and every cross-household read lands here, including yours.

Audit log
When	Actor	Action	Target