AI Expense Tracker 2026: Firefly III (24k Stars) vs Actual Budget - Self-Hosted Money Apps With AI Categories

Mint shut down and Intuit keeps pushing subscriptions. Self-hosted budgeting apps give you full control of financial data - and 2026's AI features auto-categorize transactions. Here is the honest comparison.

## The short answer The two leading self-hosted finance apps in 2026 are **Firefly III** (24,208 stars, AGPL) - a complete double-entry bookkeeping system for personal finance - and **Actual Budget** (27,894 stars, MIT) - a modern, fast budgeting app with a great UI. Both can be paired with LLMs for automatic transaction categorization. ## Firefly III - the complete ledger - Double-entry accounting principles, multi-currency, recurring transactions. - Budgets, bills, piggy banks, and detailed reporting. - Data import from banks via CSV or APIs (many bank exporters exist). - Web UI + REST API; runs via Docker easily. - AI angle: its API lets you send transactions to an LLM for category suggestions. ## Actual Budget - the modern minimalist - Fast, local-first budgeting with a clean UI (think YNAB, but self-hosted). - Envelope-style budgeting with rules for auto-categorization. - Multi-device sync built in (via a server component). - Open source (MIT) - fork-friendly. ## The 2026 AI workflow 1. Export bank transactions as CSV. 2. Let the app's rules handle obvious categories (groceries, rent). 3. For the rest, batch-send to an LLM: "Categorize these transactions into my budget categories, return JSON" - then review and import. 4. Monthly: ask an LLM to summarize spending trends from the app's reports. The LLM step is a prompt, not a plugin - you pipe data through any model you trust. Never give an LLM your full financial history unless you use a local model. ## FAQ **Is self-hosting finance data safer?** It stays on your server, but you own the security burden - keep backups and use HTTPS if exposed. **Which is easier for beginners?** Actual Budget has the gentler learning curve; Firefly III is more powerful but more complex. **Do they support bank sync automatically?** Both rely on manual CSV import or community connectors; automatic bank feeds depend on your bank's support. ## Related - [AI Data Analysis: PandasAI](/post/pandasai-ai-data-analysis-20260803) - [AI Accounting Software: Akaunting](/post/akaunting-ai-accounting-20260803)