What you saved, and what the market did
Every year of growth split into your own contributions and market change, so a good year for markets never passes for a good year of saving.
Your contributions
Market change
Personal wealth, in one place
OneTrueNumber brings your bank, broker, exchange, cold wallet and property together into one net worth you can trust, with years of history behind it and a clear view of how every decision moves it.
Seven places your money lives. One number they add up to. Hover an account to trace it.
Sample household · illustrative figuresUSD742,308
+USD 11,940 this month +USD 96,410 this year
1 USD = 40.24 UYU · rate of 18 Sep 2026, refreshed daily
What you get
Keep tracking spending where you already do. OneTrueNumber takes it from there, to net worth, cash flow, investments, property and the goals they are all for.
Every year of growth split into your own contributions and market change, so a good year for markets never passes for a good year of saving.
Exports land in a review queue. Transfers get paired, duplicates are skipped, and nothing is saved until you confirm it.
Rent in, expenses out, and the yield that is actually left. Obligations such as Contribución Inmobiliaria come with reminders, so a due date never slips.
| Rent received · 12 months | +USD 15,600 |
| Gastos comunes | −USD 2,160 |
| Contribución & Primaria | −USD 940 |
| Repairs & upkeep | −USD 800 |
| Net income | USD 11,700 |
Moving money between your own accounts isn't spending, and buying an ETF isn't a cost. See your real cost of living, without the noise.
Set a target allocation, write down why you hold each part, and see when you drift.
Crypto is 12 points over target. Send new contributions to stocks and cash.
Choose the yearly spending you want to sustain and see the capital it takes, and how far along you are.
USD 60,000 a year at a 4% withdrawal rate. A simplified projection, not a promise.
Every entry keeps its original amount and that day's exchange rate. Switch the whole app between USD and UYU in one click.
How it works
Download your history as files. Years of it, not just last month. No bank passwords are ever shared.
Rules classify most rows on their own. The rest wait in a queue with a suggested match, and you confirm them in bulk.
Net worth, cash flow and allocation are built from what you confirmed. Prices and exchange rates refresh every morning.
Principles
A net worth is only worth looking at if you believe it. These rules are part of the design, not settings you can turn off.
Converting an entry adds to it. The amount and currency you imported stay exactly as they were.
Everything comes from files you export yourself. Nothing logs into your accounts on your behalf.
Every row is fingerprinted, so importing the same file twice changes nothing.
Transactions, accounts, valuations and property P&L export to CSV, with columns that never change.
OneTrueNumber is opening to more households soon. Leave your email and you'll be among the first to get an account.