Buy or rent?

Model house price appreciation, mortgage cost, opportunity cost of deposit, and rental inflation. Which choice wins over your time horizon?

Example result

Pre-loaded with realistic variables — tweak any number and re-run with your own situation. In this illustrative run, Rent (for now) wins 55% of simulated futures, with an expected edge of €18K and a 22% chance of ending up behind.

Three steps. No PhD required.

  1. Adjust the pre-loaded variables

    We've filled in realistic numbers for your situation. Change any value — your actual salary, your risk tolerance, your timeline.

  2. Hit "Help me decide"

    The engine runs 1,000 simulated futures in under a second, accounting for uncertainty in every variable you entered.

  3. See which choice wins

    A winner banner, a confidence score, and a sensitivity chart showing which variable matters most. Share the result or fork it with different assumptions.

How it works · More decision guides