See the whole pictureIncome, spending, assets, property and tax through time.
Public beta now open
See your financial future.
Shape what comes next.
RetireOS turns your finances into a living long-term forecast—helping you explore decisions, compare possible futures and understand the choices available to you.
TestFlight is Apple’s official beta-testing service.
Private by designRuns on your deviceBuilt to be examined
Plan · Compare · TestDecades of decisions, made visible.
Explore different pathsChange assumptions and compare possible outcomes.
Understand the trade-offsFollow where money comes from and what changes.
Private by designYour detailed plan stays on your device.
A forecast you can work with
More than one retirement number.
Life does not reduce neatly to a target pot or a single success percentage. RetireOS connects the moving parts, then lets you ask another question without rebuilding everything from scratch.
Look beyond one outcomeExplore uncertainty, market shocks and the resilience of the same connected plan.
Build the picture
Bring together the household, its accounts, income, spending, property and assumptions.
Explore the choices
Test spending, growth, inflation, life events and funding approaches without losing the original plan.
Keep the evidence
Review detailed workings and create reports that preserve the inputs, assumptions and outcomes together.
Built around better decisions
Clarity for the questions that matter.
01
Plan with confidence
See how the household may change across decades, rather than judging the future from today’s balances alone.
02
Test life’s possibilities
Compare different choices, difficult markets and alternative paths while keeping the underlying financial picture connected.
03
Stay in control
Run the model locally, protect exported files and decide for yourself what leaves the app.
Power beneath the simplicity
Serious forecasting.
Made visible.
Forecasts, scenario comparisons and simulations answer different questions. RetireOS keeps them together, supported by detailed reports and transparent assumptions.
Long-term household forecastingScenario and sensitivity testingMonte Carlo and market shocksTax and funding detailPDF and CSV report suitesEncrypted plan transfer
Public beta
Start exploring what comes next.
RetireOS is free during Public Beta. Access is provided through TestFlight, Apple’s official beta-testing service.
A Founder Millionaire benefit
You helped us begin.
Help choose what comes next.
Verified Founder Millionaires can vote on development priorities and suggest new ideas. Your Millionaire code gives you one vote in each poll.