Retirement Planning
Explore retirement income, portfolio growth, and spending sustainability.
Free, simple financial tools for real life.
Build your own scenarios. See what happens.
Tools for exploring, learning and understanding money.
What’s on your mind?
Start with what matters to you
Pick one to try. You can change the numbers as you go.
Grow my savingsSee what saving regularly could add up to.Build an emergency fundSee how many months your savings could cover.Understand my debtExplore interest and repayment costs.Explore a mortgageTry different payments and overpayments.Plan for retirementSee how long your money could last.Explore a lump sumSee how a one-off amount could grow.
Explore planning paths
Wealth Building
Understand how regular saving and investing could grow over time.
Home Ownership
Explore mortgage costs, overpayments, and long-term housing decisions.
Financial Safety
Build emergency savings and understand debt risks without pressure.
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Already know what you need? Find it here.
Why Monii exists
Monii was built to make long-term financial thinking easier.
No accounts.
No subscriptions.
No financial advice.
Monii is an educational projection tool only, not financial, investment, or retirement advice. Figures are based on the assumptions entered and do not guarantee real-world outcomes.