Head-to-Head Comparison · Alternative to Monarch Money · 💰 personal finance
Monarch Money vs Firefly III
Transactions, budgets, goals and net worth in Docker; portfolio analysis is not its favourite spreadsheet. Here is how Firefly III ($0/mo open source) stacks up against Monarch Money ($14.99/mo) across cost, hosting, data privacy, and real-world trade-offs.
Firefly III
$0.00/mo · AGPL-3.0+
Monarch Money vs Firefly III Specification Matrix
facts verified 2026-08-11
| Dimension | Monarch Money (Paid) | Firefly III (Replacement) |
|---|---|---|
| Monthly Price | $14.99 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $180 / yr | $0 / yr (Save $180) |
| 1-Year Cost (5 seats) | $899 / yr | $0 / yr (Save $899) |
| 1-Year Cost (10 seats) | $1,799 / yr | $0 / yr (Save $1,799) |
| Source & License | Proprietary SaaS | open source AGPL-3.0+ |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 24k (active aug 2026) |
Deep Dive: Switching from Monarch Money to Firefly III
Trade-offs, installation & data architecture
What you trade away
Firefly III requires server administration and is weaker than Monarch for investment tracking, household collaboration, polished goals, automatic institution sync, and mobile usability.
How to deploy Firefly III
Official Docker Compose deployment; a separate Firefly III Data Importer is normally added for bank files
What it takes to run
The first obstacle is operating a real web service, Docker, a database, application secrets, TLS, mail, backups, upgrades, and usually the separate importer plus an API token.
Where your data lives
Transactions, accounts, budgets, rules, and metadata live in the configured MariaDB/MySQL or PostgreSQL database; uploads and generated files live in persistent server volumes.
Why fork Firefly III instead of vibe-coding a Monarch Money clone?
A manual finance dashboard is buildable, but high-quality bank aggregation, transaction cleaning, investment data, household collaboration, and mobile sync make it real work.
Monarch Money vs Firefly III FAQ
Is Firefly III a good free alternative to Monarch Money?+
Yes. Firefly III is a verified open-source (AGPL-3.0+) replacement for Monarch Money. Transactions, budgets, goals and net worth in Docker; portfolio analysis is not its favourite spreadsheet.
What is the catch when switching from Monarch Money to Firefly III?+
Firefly III requires server administration and is weaker than Monarch for investment tracking, household collaboration, polished goals, automatic institution sync, and mobile usability.
How much do you save switching from Monarch Money to Firefly III?+
Monarch Money costs $14.99/mo ($180/yr) per seat, whereas Firefly III is $0/mo. Switching saves $180/yr for a solo user, $899/yr for a 5-person team, and $1,799/yr for a 10-person team.
How do I install or self-host Firefly III instead of Monarch Money?+
Install: Official Docker Compose deployment; a separate Firefly III Data Importer is normally added for bank files. Setup: The first obstacle is operating a real web service, Docker, a database, application secrets, TLS, mail, backups, upgrades, and usually the separate importer plus an API token.
