Personal · Organisation · Investments

Your finances, finally in one place.

Track every expense, income, bill, and investment — for yourself or your small organisation — in one bilingual app built for clarity.

🇪🇺 Built for Europe 🔒 Your data, your phone 🌐 English & Español
Home
Welcome back
Mike
Manage and track all wired and non-wired transactions — bills, fines, gifts, investments, income, rent.
Incomes
Expenses
View Graph
Investments
Everything in one app

Built for how you actually handle money.

Not just expenses. Not just budgets. The full picture — earnings, costs, bills, clients, and investments — together.

💰

Income & expense tracking

Log earnings and spending in seconds. Tag them by type — gift, rent, fine, salary, investment — and find them again instantly.

📊

Visual balance reports

See your incomes, expenses, and balance at a glance. Filter by date, type, or keyword. Know exactly where your money went.

📈

Investment portfolio

Track real estate, stocks, crypto, and businesses side by side. See profit or loss on every investment in real time.

👥

Client & bill management

For organisations: manage clients, issue bills, track payments, and mark invoices as paid — without leaving the app.

📥

Bring your Excel data

Already tracking things in spreadsheets? Import them in one go and pick up where you left off.

🌍

Bilingual by design

Use the app in English or Spanish. Switch any time — your data stays consistent across both.

One app, two modes

Personal money? Small organisation? Both.

Pick the account that fits — or run both side by side. The app adapts to what you need to track.

Personal

For your own finances

Side hustles, rent, salaries, the occasional gift, the investment you keep forgetting about. All visible. All trackable.

  • Daily income & expense logging
  • Personal investment tracking
  • Custom income types (gift, rent, salary…)
  • Balance graphs & filters
  • Excel import
View Graph
Total Incomes €3,250.00
Total Expenses €1,470.00
Your Balance €1,780.00
Recent
06 May
Apartment rent
+€650
05 May
Groceries
−€78
04 May
Birthday gift
+€100
Organisation

For your small business

Track clients, issue bills, record payments, and never lose sight of what's outstanding. Built for solo operators and small teams.

  • Client database
  • Create and track bills per client
  • Mark invoices as paid in one tap
  • Organisation-level investment tracking
  • Same Excel import, scaled up
Clients
García Construcción
3 active bills
€2,450
Martínez Studios
1 paid · 1 pending
€850
Sánchez & Co
All paid
€0
Restaurante Luna
1 overdue
€420
+ ADD CLIENT
Investment tracking

All your investments. One screen. Real profit or loss.

From the apartment you rent out to the BTC you bought in 2021 — see every position, its cost basis, and its real profit or loss in your home currency.

🏠
Real estate, crypto, stocks, business Track them side by side, in one portfolio view.
🔗
Link income and expenses Tag rent received or maintenance paid to the right investment — profit/loss stays accurate.
Live prices for crypto & stocks Auto-fetched and cached, so your portfolio is always current — without burning your data.
House in Nigeria
Real Estate · Active ▲ +2.9%
+€159.00
Total profit / loss
Total invested €5,521.00
Income received €180.00
Current value €5,500.00
Linked expenses
01 Feb 2026
Roof maintenance Expenses
−€501
Linked income
2022
Annual rent Income
+€80
2021
Annual rent Income
+€100
How it works

From install to clarity in three steps.

1

Create your account

Personal or organisation — choose at sign-up. No credit card. Takes less than a minute.

2

Log or import

Add your incomes and expenses as you go, or bring your existing Excel sheet in one upload.

3

See the full picture

Open the graph view to see balance, trends, and profit on every investment — all in one screen.

Why OAH

A finance app that respects how you actually live.

Most finance apps treat you like an American with one bank, one job, and one currency. OAH was built for the rest of us — with rent income, side gigs, crypto, and a small business on the side.

🔀

Personal and business, side by side

Switch between your personal and organisation accounts without juggling apps. Same login, same patterns.

🏘️

Real-world assets, not just stocks

Track the apartment, the loan to your cousin, the side business — not just what Wall Street thinks counts as an investment.

🌐

Truly bilingual

English and Spanish, built in from day one. Not a half-baked translation bolted on later.

🔐

Your data stays yours

No selling to advertisers. No "anonymised insights" sold to third parties. Just your numbers, on your phone.

Already tracking in Excel? Here's what you gain.

The discipline you built stays. The friction, the fragility, and the formulas go away.

Spreadsheets today
OAH Accounting
Tied to your computer
Always in your pocket, log it as it happens
Hours of setup — columns, formulas, charts
Open it and start tracking, no setup
Build pivot tables to see your balance
Visual reports, filters, and totals built in
Type in crypto and stock prices by hand
Live prices, auto-updated
One wrong cell breaks the whole sheet
Validated input — nothing to break
Cross-sheet formulas to link rent to a property
Tap to link any income or expense to an investment
Finances_v2_FINAL_real_v3.xlsx
One source of truth, always up to date
Already have data in Excel? Import it in one upload — no rebuilding from scratch.
FAQ

Questions, answered.

Is OAH Accounting free?

Yes — the core app is free to use. We may introduce paid features later for advanced needs (multi-currency reporting, bulk Excel imports for organisations, etc.), but the day-to-day tracking will always be free.

Is my financial data secure?

Your data is encrypted in transit and at rest. We don't sell it, share it, or use it to train anything. You can delete your account and all associated data at any time.

What languages and currencies do you support?

The app is fully available in English and Spanish, and uses the Euro by default. Multi-currency support is on the roadmap and will roll out alongside the investment tracking feature.

Is there an iOS version?

Android launches first. iOS is on the roadmap and you can join the waitlist below to be notified.

Does it connect to my bank account?

Not yet — OAH is built for manual logging and Excel import, which means more control and no third-party access to your bank. Bank connections may come in a future version if there's enough demand.

Can I really track real estate or business investments?

Yes. For assets without a live price feed (like real estate or a private business), you set the current value manually — typically when you get a valuation. Linked maintenance expenses and rental income keep your profit/loss honest over time.

Stop guessing where your money goes.

Get OAH for Android at launch. Track your income, expenses, bills, and investments in one place — and finally see the whole picture.