Spendium app icon

Track your money.
Trust no one.

A private, offline-first expense tracker for Android. Your data stays on your device and — if you opt in — in your own Google Drive or OneDrive account. No backend, no analytics, no ads, no account to create.

No backend No tracking No ads Open source 15 languages
Why Spendium

Built for your money, not for our metrics.

Everything you record lives in an on-device SQLite database. No server holds your spending. No SDK reports your behaviour. The internet is optional.

Your data stays yours

No backend server. Everything you record lives in an on-device SQLite database — we literally cannot see your expenses.

Works fully offline

On the subway, on a flight, in the middle of nowhere — it just works. Every screen reads from local storage, every entry is saved locally first.

Sync on your cloud

Google Drive or OneDrive, app-scoped folder only (appDataFolder / approot). One hidden file in your account — we can’t see any of your other files.

Multi-currency with historical FX

Record in any currency. Historical rates from the open frankfurter.dev service convert everything using the rate in effect on the day of each transaction.

Powerful spending analysis

Three views into your money: a categories donut, a flat or grouped transactions list with search & filter, and an overview with sparkline plus stacked or line breakdown.

Any time period

Today, week, month, year, all-time, or a custom date range. Charts and totals re-compute instantly on device — no round-trip to a server.

Quick entry with calculator

Add an expense in three taps: amount → category → done. The number pad doubles as a calculator (+, −, ×, ÷) for splitting receipts on the spot.

15 languages

English, German, Spanish, French, Italian, Polish, Portuguese, Czech, Turkish, Ukrainian, Hindi, Indonesian, Japanese, Korean, and Chinese (Simplified).

Backup & restore

Export everything to a lossless JSON file or CSV (great for spreadsheets) straight from Settings. Restore on another device in one tap.

Privacy first — by design, not by promise.

No Firebase Analytics, no Sentry, no Mixpanel. No ads. No accounts. Only the INTERNET permission, used solely to reach OAuth and the public exchange-rate service when you actually need them.

Read the policy →
Screenshots

See where your money goes.

Material 3 light and dark themes, four font-size presets, and a polished chart for every angle.

Light theme — categories, overview, lines

Categories screen with donut chart showing total spending CZK 49,605.38 and per-category breakdown (House 45%, Transportation 13%, Children 12%, Car 10%)
CategoriesDonut + per-category breakdown
Overview screen with per-day sparkline and stacked area chart showing daily spending broken down by category for June 1-30, 2026
OverviewStacked area by category
Overview screen showing per-category spending as separate lines over time, with House category spiking on Jun 6
Lines viewPer-category over time

Dark theme — drill down with interactive charts

Categories donut chart in dark mode showing CZK 49,605.38 total spending split across House, Transportation, Children and Car
CategoriesDark theme
Overview screen in dark mode with stacked area chart for the same period
Stacked areaDark theme
Overview chart in dark mode with an interactive tooltip showing per-category amounts for the selected day
Interactive tooltipExact amounts on tap

Browse, search & filter every transaction

Transactions list grouped by date showing expenses in CZK and an UAH 1,400.00 expense automatically converted to CZK 657.93 using the historical exchange rate
Multi-currencyHistorical FX conversion
Transactions list with a search box and an active Food category filter chip, showing CZK 4,436.00 total for June 1-30, 2026
Search & filterBy text and by category
Date range picker dialog showing June 2026 calendar with Jun 1 selected as the start date and Apply / Cancel actions
Any time periodDay, week, month, year, range

Add, edit, sync — or keep it 100% local

Add-expense dialog with date, category, amount CZK 500, merchant field showing 'Tes' with a Tesco suggestion from previous expenses, and a calculator keypad
Quick addMerchant autocomplete + calculator
Edit-expense dialog in dark mode for a CZK 660 Billa Food expense on Jun 10, 2026, with a red DELETE button bottom-left and OK bottom-right
Edit & deleteTap any transaction to change it
Cloud sync dialog showing Google Drive as provider, an Auto-sync toggle enabled, Sign out and Sync now buttons, and 'Last synced 6/11/2026 9:09:56 PM — Already up to date.'
Cloud syncYour account, your file
Export & Import dialog offering a JSON download and a Choose file restore action
Backup & restoreLossless JSON or CSV-in-ZIP

Ready to take back your spending data?

Spendium is free, ad-free, and open source. Install it once — it’s yours.

Get Spendium on Google Play