A ledger for income and spending

iPhone, iOS 16 and later.

Grossbuch records what you earn and spend, keeps balances for as many accounts as you like, and shows totals by month or year. It works offline, keeps the ledger on your phone, and needs no account.

What is in it

• Two taps to record a spend. Type the amount, tap a category, done — no confirmation screen. The category tiles reorder themselves towards what you actually use.
• Accounts in as many currencies as you like.
• Transfers between your own accounts, with the real rate written on both sides.
• An opening balance for each account, so you can start keeping books today instead of re-typing three years of history first.
• Type in what your bank shows today, and the app records the difference as a single adjustment instead of rewriting the past.
• Statistics by month or by year, by category, with subcategories folded into their parent.
• History by day, with filters by account and category, and search by amount.
• Light and dark, and nothing but the system's own look.

How currencies are handled

Accounts and amounts can be in different currencies, and the app keeps them apart rather than converting everything to one.

Every amount stays in the currency it happened in

A $5 coffee is $5, today and in five years. Account balances stay in the account's own currency.

The rate is the one you actually got

When you move money between your accounts you enter what left one and what arrived in the other. That is the rate — your bank's, your exchange office's, the one you argued for — and Grossbuch freezes it.

Totals are what your money really cost you

Choose a report currency: the lens you read your month through. Where you have your own rate for a currency, from a transfer you recorded, the figure is valued at that; where you don’t, a published rate stands in, marked as an estimate. Open "How it adds up" and the app shows its working, currency by currency, so you can see which part of the total is a fact and which part is an estimate.

Working offline

There is no account to create, no sync, no sign-in, and no server of ours anywhere. The ledger is a file on your phone, and Grossbuch never sends it anywhere. The one thing it fetches, when it can, is the day's published rate table — nothing you enter goes with the request, and with no signal the app simply carries on without it.

A note on honesty

Sometimes there is no honest number. Your own rate is used first, always. Where you have no exchange history for what you spent, the app falls back to the nearest rate it knows — one you got yourself on another day, or a published one — and marks the row as the estimate it is instead of letting it pass for a price you paid; where it knows no rate at all, it says so on the row rather than inventing one. And it will never show you half a figure as though it were the whole one. That is the whole design, really: it would rather say "I don't know" than be confidently wrong about your money.

Nothing you enter is sent to us. No account, no analytics, no advertising.