Investor

Plan, track and rehearse your investing decisions.

Your portfolio, goals and taxes in one encrypted file on your computer. No account, no server, no tracking.

Try the example Download the app

Free and open source · Windows, macOS, Linux and the browser · 12 languages

How it works

Three things it does well

Everything in one encrypted file

Import statements from IBKR and Revolut, add bank accounts, gold and private stakes. It all stays in one .invest file you keep.

Rehearse before you trade

See what a buy or sale does to your cash, your goals and your next 20 years before you record it.

Taxes by country

What to declare, sale by sale, with rules for 13 countries. Draft rules, not tax advice.

Example portfolio

Click around a made-up portfolio

Nothing you change is kept, and your own file is never touched.

  • Index ETFs VWCE, EUNL
  • Shares Apple, ASML, Nestlé…
  • Bonds and gold ETFs, a coin and a bar
  • Crypto Bitcoin, Ether
  • Five currencies EUR, USD, CHF, DKK, GBP
  • Goals Emergency fund, house, retirement
Open the example
The example portfolio on a phone: net worth, figures and holdings, with tabs at the bottom.
Plan a trade in the example: 20 more VWCE previewed with how the holdings shift, the emergency fund and a 20-year projection with and without it.
Try a trade before you make it.
Projections for the example: a range of outcomes over 20 years.
Twenty years ahead, with the range.
Tax and reporting for the example: one taxable sale in the US and one exempt sale on an EU market.
Each sale under your country's rules.

Download

On your computer, or in the browser

macOS Apple silicon and Intel · .dmg Signed by Apple Windows .msi or setup.exe First start: More info, then Run anyway Linux .AppImage, .deb or .rpm Browser Nothing to install · works offline

The desktop app updates itself when a new version is out.

Your CFO

A finance chief for your household

It reads your whole picture and tells you what to do first, and why. It runs on a model on your own computer.

You are in good shape, but the car loan costs more than your investments earn.

Now Pay down the car loan It costs 6.9% a year: paying it off is a sure 6.9% return.
Soon Invest the cash above your emergency fund Cash beyond what you need loses value to inflation.
An example briefing for the made-up portfolio.
  • Reads everything. Net worth, debts, cash, your plan, concentration, costs, tax and goals.
  • The app does the maths. The model explains the figures and puts them in order.
  • Stays on your computer. You can see exactly what it reads.
  • Ask anything. Pay off the loan or invest? It answers with your own numbers.

Optional AI assistant

Talk to your portfolio, with the AI you choose

A model on your own computer, or Claude, ChatGPT and others with your own key. Investor works fully without one.

In the desktop app

Press ✦ and pick a model.

From your own AI tool

Claude Code, Cursor or VS Code: copy one command from the app.

Ready-made skills

Monthly check-up, trade rehearsal, taxes, retirement.

I bought 20 more VWCE at 131.40 today, €1.25 in fees. Can you record it?

Record a trade Buy 20 VWCE at IBKR · €131.40 · fee €1.25 ApproveDecline
Nothing changes until you approve it.

Not a financial adviser. How to connect it

What's new

Changelog

All releases on GitHub