Abacus for Firefly III

Mobile access to Firefly III

Abacus for Firefly III is an Android companion for people who manage their finances with a self-hosted Firefly III server. It brings transaction recording, account review and financial summaries to a mobile device without replacing the Firefly III setup itself. The app is best suited to users who already run Firefly III and want a practical way to check or update their records away from a desktop.

Useful finance tools on the go

Abacus focuses on the parts of personal finance that benefit from quick access. You can review balances, record transactions and follow your overall financial position, including net worth across multiple currencies. Asset account charts add historical context, making it easier to see how those accounts have changed rather than relying only on a current balance.

Built around private data

The app connects to your own Firefly III instance and supports OAuth2 and personal access token authentication. Session tokens are stored through Android Keystore, adding device-level protection to the login data used by the app. Its design also avoids external analytics and crash-reporting services, which suits users who do not want their spending activity sent to third parties.

A proven choice for Firefly III users

With a 4.95/5 rating from 146 reviews and 5,000+ installs, Abacus has a small but notably positive user record. That is a useful signal for a specialised client aimed at a specific self-hosted finance community. Developed by victorbalssa in the Finance category, it is a focused tool rather than a general banking app: its value depends on already using Firefly III, but within that role it keeps mobile access clear, security-conscious and appropriately tied to your own financial system.