Features

Everything simpleIOU does

One calm dashboard for the IOUs you're owed, the subscriptions you forgot, and the debts you want gone — multi-currency, with due-date markers and payoff forecasts.

IOUs

Money owed, never forgotten

Log loans in both directions — money owed to you and money you owe — then mark paid or archive when they're settled.

  • Track IOUs in both directions
  • Mark paid or archive in one tap
  • Per-contact running balance and full history
  • Net position pill at the top of the page
Subscriptions

Every recurring bill in one calm list

See what's leaving your account each month and what's coming up next, so renewals never catch you out.

  • Monthly + yearly totals computed for you
  • Next-due markers, ordered by date
  • Multi-currency — keep CHF, EUR, USD apart
  • One-tap pause or archive
Credit cards & loans

Balance, APR and payoff in one place

Track every card and loan with its balance, APR and minimum payment — and let smart forecasts show when you'll hit zero.

  • Balance, APR and minimum payment tracking
  • Automatic payoff forecast per card
  • Adapts when the balance drops below the minimum
  • See the full forecast for any card

Across everything

The details that make IOUs, subscriptions and debts feel like one tidy app.

Multi-currency

Pick from CHF, EUR, USD, GBP, DKK and more with a flag picker. Every entry stays clean.

Calendar view

IOU due dates, subscription renewals and loan payments together on one monthly grid.

Swipe gestures

Swipe right to mark paid, left to archive, or sideways to move between tabs.

Due-date awareness

Renewal dates, minimum payments and next-due markers — never blindsided again.

Mobile + desktop

Works beautifully in any browser, on your phone or your laptop.

Install to home screen

Add simpleIOU to your home screen (PWA) for an app-like feel.

Secure cloud sync

Every row is locked to your account with row-level security and synced across devices.

Optional guest mode

Start instantly without an account — your entries stay in your browser until you sign up.

Start tracking today

Completely free — unlimited IOUs, subscriptions & loans.