Begin with your numbers, or use a preset.
Every dollar shifts your timeline.
Your budget feeds your retirement plan, so you see the year you can retire and exactly what moves it. Real RRSP, TFSA, CPP and OAS rules, free to start.401(k), Roth and Social Security rules, free to start.
Start with You, or pick a situation like yours.
1,800+ plans built · Private by default. Your data is never sold.
Your budget feeds your retirement plan.
Your synced transactions and your budget feed the same projection that models taxes, benefits, withdrawal order and when you can retire.
Daily spending rhythm
Spending for each day of the month, synced from your bank.
This month → your timeline
Money you don’t spend this month is added to the plan above, so you can see how it moves your retirement date.
Use your plan from Claude or ChatGPT.
cinder.fi runs an MCP server with 100+ tools. Connect Claude, ChatGPT, Cursor or any MCP client, then ask about your real plan, budget and accounts, or have it make changes for you.
- More than half the tools only read your data. The rest can change budgets, categories, rules, scenarios and accounts, and only once you switch writing on for a connection.
- Every change is logged, and you can undo it until you edit it again, by the assistant or in the app under Settings › Ask cinder & agents › Connected agents.
- Free accounts get 5 calls a day. Pro includes MCP Pro, with 500 a day.
Plan with your own numbers.
Add your accounts, income and spending. Life events go on the timeline, the optimizer finds the lowest-tax strategy, and the stress test runs your plan through nearly 100 years of markets.
Life events on the timeline
- Inheritance+$85k
- Kid's tuition−$60k
- Retireage 65
Add a child, a career break or an inheritance and the projection updates.
The lowest lifetime tax
Tests 18,240 combinations of withdrawal order, benefit timing and conversions, then lists each change and what it's worth.
Your plan in bad markets
Monte Carlo and nearly 100 years of market history show how often your plan lasts.
Your accounts and your home, in one net worth.
Connect your banks once. cinder.fi syncs balances, holdings and transactions for investments, cash and debts, counts your home too, and adds it all up into one net worth that feeds the plan above.
- InvestmentsRRSP · TFSA · Non-registered401(k) · IRA · Taxable$352,000
- Real estatehome equity$240,000
- Cashchecking · savings$24,000
- Debtscredit card · auto loan−$16,000
Each account is modeled with its own tax rules.
Your history and your projection on one chart.
Your plan’s chart starts before today. Your balance history, synced from your accounts, runs up to today, and the projection continues from there on the same axis.
Past returns don’t change your projection’s return assumption.
Ask your plan a question, get an answer from your numbers.
cinder is the AI assistant inside the app. It reads your plan, budget and accounts, so the answer is about your money, not a generic rule of thumb.
- Ask about your plan, spending or accounts and get an answer built from your own numbers.
- Ask for a budget change and it arrives as a card to review. Nothing happens until you tap Apply.
- Daily checks flag a slipping cinder score, a subscription price increase or a duplicate charge.
Your money data stays yours.
You can connect a bank, or skip it. Either way, this is how your data is handled. Want more? Turn on an encrypted mode, free on every plan: your data is encrypted on your device, and we store only ciphertext we can’t read.
- Bank logins stay with PlaidYou sign in to your bank in Plaid’s own window. cinder.fi never sees or stores your bank login.
- EncryptedBank connection tokens are encrypted with AES-256-GCM, and your data is encrypted in transit and at rest in a database hosted in Canada.
- Never soldWe don’t sell your data. Our analytics never see your actual balances or transactions, only rounded ranges.
- Yours to removeDisconnect a bank at any time and access is revoked. Delete your account from Settings and your data is permanently removed.
On Android? Join the waitlist
Start with a sketch. Keep going with the real plan.
- Full projection engine, CA + US
- Budget + one saved plan
- Life events on the timeline
- Success rate against historical markets
- Bank sync for one institution
Billed $99 a year. You save $45 (31%) versus monthly.
The yearly plan starts with a 7-day free trial. Cancel before it ends and you pay nothing.
Everything in Free, plus:
- Strategy optimizer
- Deeper Monte Carlo and full historical backtesting
- Unlimited scenarios & compare
- Bank sync for all your institutions
- Statement imports (CSV, OFX)
- Ask cinder, the AI assistant
Before you start.
Is cinder.fi free?
Yes. The free plan is a full retirement planner with no time limit: the projection engine with real tax math, your budget, the cinder score and your success rate against historical markets. Pro is optional.
What does Pro add?
The strategy optimizer, a deeper Monte Carlo (your own run count and settings, the full percentiles) and full historical backtesting, unlimited scenarios, statement imports (CSV and OFX), bank sync for all your institutions, and Ask cinder, the AI assistant. The yearly plan starts with a 7-day free trial; cancel before it ends and you pay nothing.
Does it work in Canada and the US?
Yes. cinder.fi covers both countries, with every Canadian province and US state, and each country’s own tax rules, retirement accounts and benefits.
Do I need to connect my bank?
No. You can enter balances and spending yourself. If you do connect a bank, Plaid handles your login and cinder.fi never sees it. A free account syncs one institution; Pro syncs all of them.
Is my data safe?
Your bank login goes to Plaid, not to us. Your data is encrypted in transit and at rest, stored in a database hosted in Canada, and never sold. You can disconnect a bank at any time, which revokes access. Want more? Turn on Private or Encrypted sync, free on every plan: your data is encrypted on your device with a key only you hold, and we store only ciphertext we can’t read.
Can I try it without an account?
Yes. Pick a situation or start with your own numbers. Without an account, everything stays in your browser. A free account adds cloud sync and bank connections.

"I built cinder.fi because I was tired of budgeting in one app and guessing about retirement in another. One tool that shows what a kid, a raise or a career move does to your timeline, with real tax math instead of estimates."
How each strategy works.
Each strategy in cinder.fi has a guide that explains the rules, trade-offs and math for Canada and the US.