Local-first · 100% private

Your household, fairly split — private and account-free.

Plan income, fixed costs and shared spending, track real expenses and keep net worth & forecast in view. Everything runs on your device — no sign-up, no cloud.

  • No account
  • No cloud
  • Ready in 30 sec

Your data stays with you. Full stop.

Kontoo collects, sees and stores none of your data. No account, no cloud, no trackers, no ads – everything runs entirely on your device. There simply is no server that knows your finances.

No accountNo cloudNo trackingNo ads

Features

Everything for a shared overview

Split fairly

Shared pots by income, evenly or with fixed amounts – for couples and flatshares (1–6 people).

Plan vs. actual

Track real spending against your budget, including envelope budgeting for monthly discipline.

Net worth & forecast

Brokerage, savings, property and loans (net worth), cash-flow forecast and a FIRE calculator.

Analyses

Charts, the 50/30/20 rule, savings rate and “who pays what?” – clear at a glance.

Private & local

No data collection, no tracking. Optional sync is end-to-end encrypted only – if you want it.

Offline & installable

Installable as an app (PWA), works offline. Export/import as a file, encrypted backup.

How it works

Set up in a minute

1

Guided setup

A short wizard creates people, income and housing costs for you – example household optional.

2

Track spending

Mark variable items and record real expenses against your budget – with a getting-started checklist.

3

Stay in control

Balance, savings rate, net worth and forecast – all private on your device, always up to date.

FAQ

Frequently asked

Does the app cost anything?

No. It runs as a simple website with no account and no subscription.

Where is my data stored?

Only locally in your browser. By default no transfer, no cookies, no trackers. Optionally you can enable an end-to-end encrypted sync – the server never sees your plaintext data. With “Export” you can additionally save your household as a file.

Do I need an account?

No. Just open it and start.

Does it work offline?

Yes. After the first load the app works offline and can be installed as an app.

How do I switch devices?

Via file export/import – or enable the optional encrypted sync and enter the same passphrase on both devices.

Is there a native app too?

The website installs directly as an app (PWA). Native apps for iOS and Android are in preparation.

Ready to stay on top of it?

Free, no account, ready in seconds – and everything stays with you.

Start now