Support

Track spending, income and loans — offline, without an account.

Contact

Email: chuga1204.develop@gmail.com
We usually reply within 2 business days.

Reporting a problem? Please include your phone model, Android version and the app version (Settings → About), plus what you did just before it happened.

Frequently asked

Do I need an account?

No. Lumo works straight away, offline, with no sign-up. Nothing you record leaves your phone.

How do I add a transaction?

Tap the green + button in the bottom bar, type the amount on the built-in number pad, pick a category and save. You can also change the date and time or add a note before saving.

I deleted something by mistake.

Right after deleting, a bar appears at the bottom with Undo. It stays for 5 seconds; after that the record is gone for good.

Can I record money I lent or borrowed?

Yes — choose Lent or Borrowed when adding. The Loans tab shows what is still outstanding, and you can mark a loan as collected or repaid when it is settled. Your total balance updates on the date it was settled.

How does multi-currency work?

Each transaction keeps the currency you entered it in. On screen, amounts are converted to your display currency using the rate of the day the transaction was recorded, and converted values are marked with “≈”. This is why your history never changes when rates move. If a rate is missing, the original amount is shown instead.

Do I need internet?

No. The app works fully offline; it ships with a rate table and only tries to refresh rates once a day.

How do I change the language or currency?

Settings → Language, and Settings → Display currency (154 currencies, 20 languages).

How do I set a budget?

Budget tab → tap a category → set a monthly limit. Lumo suggests a limit based on your last three months. Tiles turn amber near the limit and red over it.

My starting balance is wrong.

On the Home screen, tap the pencil on the balance card and enter the correct balance. This adjusts the starting point only — your existing transactions are left untouched. Negative balances are allowed.

How do I hide my balance?

Tap the eye icon on the balance card. Only the total balance and net worth are hidden; individual amounts stay visible.

Where is my data, and how do I delete it?

It is stored privately on your phone. To erase everything: uninstall the app, or go to Android Settings → Apps → Lumo → Storage → Clear data. There is no server copy, so this cannot be undone.

Can I move my data to a new phone?

Only through Android’s own backup and restore. Lumo has no cloud sync and no export file in this version.