FinSim
Now in private beta

See your finances
before you decide

Model any financial decision and see its full impact — best, expected, and downside outcomes — up to 30 years out.

No credit card  ·  No spreadsheet needed  ·  Works in minutes

Scenario Projection — 12 Year View
My PlanInvest moreBuy a house

$312k

Best case @ yr 12

$224k

Base plan @ yr 12

$179k

With house @ yr 12

30 yr

Projection horizon

3 outcomes

Best · expected · downside

< 2 min

From setup to first insight

Features

Everything you need to think clearly about your financial future

Scenario Builder

Enter your numbers once. FinSim builds a 1–30 year baseline — the reference every scenario is measured against.

Decision Simulator

Describe any decision in your own words. FinSim translates it into model changes and runs the projection immediately.

Honest Forecasts

Every projection shows three outcomes, not one optimistic line. Uncertainty is built into the model, not rounded away.

Scenario Comparison

Compare any two futures in one chart — net worth, savings, debt payoff — in real or inflation-adjusted terms.

How it works

From question to clarity in minutes

01

Set your baseline

Enter income, savings, expenses, and debts once. This becomes your reference point — the trajectory you're on without any changes.

02

Describe a decision

Describe any financial choice in your own words — a new job offer, an early debt payoff, a move. FinSim maps it to your model automatically.

03

See the full range

Get best, expected, and downside projections up to 30 years out — with the key drivers surfaced. Adjust, compare, or run another scenario.

About

Built for the decisions that matter

Why we built it

Big financial decisions are usually made with gut feeling, rough math, or advice that doesn't reflect your full situation. FinSim helps you build a clear baseline of your finances, then test decisions against it before you commit.

What makes it different

  • Built for decisions, not just tracking
  • Range-based forecasts, not single-number guesses
  • Surfaces what drives the outcome most

Not a budgeting app

Not a robo-advisor

Not financial advice

The future is never a single line. FinSim shows you the range — and what drives it — so you can make the next call with real clarity.

Limited early access

Make your next decision
with real clarity

Join the waitlist. We'll let you know when you're in.

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