Tool Comparison
Firefly III vs USAspending
- Paid from
- —
- Free plan
- Yes
- Platforms
- Web, API
Best if
- You want portfolio and webhooks.
- Paid from
- —
- Free plan
- Yes
- Platforms
- Web, API
Best if
- You want data visualizations, videos, and official sources.
Pick Firefly III if
Firefly III
Free · Web · API
- You want portfolio and webhooks.
Pick USAspending if
USAspending
Free · Web · API
- You want data visualizations, videos, and official sources.
Skip both if: Neither one clicks with how you research; there are strong third options.
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Our take
The bottom line
Firefly III and USAspending cover a lot of the same ground (2 shared categories, APIs & data feeds and other), so for the basics you won't go far wrong with either. Firefly III includes portfolio and webhooks, and USAspending includes data visualizations and videos.
What readers say
Firefly III
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USAspending
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What Firefly III does best
- Self-host a personal finance ledger under the AGPLv3 open-source license rather than using a hosted budgeting app.
- Track accounts and transactions with double-entry bookkeeping, budgets, categories, tags, recurring transactions, subscriptions, piggy banks, rules, and reports.
- Use the JSON REST API with OAuth2 or personal access tokens for dashboards, automations, and personal analytics.
- Optional event webhooks for transaction create, update, and delete events when enabled through environment configuration.
- Import transaction data through the separate Data Importer using CSV, CAMT.052, CAMT.053, GoCardless, SimpleFIN, Lunch Flow, or Enable Banking.
What USAspending does best
- Search federal awards, recipients, agencies, accounts, contracts, grants, loans, direct payments, insurance, and other assistance records.
- Advanced Search filters such as award type, date, place of performance, NAICS, PSC, Assistance Listing, agency, recipient, and disaster-emergency funding codes.
- Explore spending through Spending Explorer, agency profiles, and federal-account profiles before opening awards and recipients.
- The public REST API V2 with JSON responses for award and account workflows; current endpoint docs say authorization is not required.
- Download award archives, filtered awards, account data, search results, award profiles, and database files.
Side by side
Pricing comparison
See for yourself
Side by side
Price, platforms, data, and market coverage.ShowHide
Side by side
| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free | Free |
Free tier | Yes | Yes |
Free trial | — | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | No | — |
Integrations | GoCardless, SimpleFIN +5 more | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | — |
Categories covered | 4 | 5 |
Regions | — | North America |
| Data & capabilities | ||
Data quality | — | Latency: End of Day and Granularity: EOD |
| Try it | Visit Firefly III | Visit USAspending |
Standout features
The best features of Firefly III and USAspending.ShowHide
Standout features
What Firefly III does best
- Self-host a personal finance ledger under the AGPLv3 open-source license rather than using a hosted budgeting app.
- Track accounts and transactions with double-entry bookkeeping, budgets, categories, tags, recurring transactions, subscriptions, piggy banks, rules, and reports.
- Use the JSON REST API with OAuth2 or personal access tokens for dashboards, automations, and personal analytics.
- Optional event webhooks for transaction create, update, and delete events when enabled through environment configuration.
- Import transaction data through the separate Data Importer using CSV, CAMT.052, CAMT.053, GoCardless, SimpleFIN, Lunch Flow, or Enable Banking.
What USAspending does best
- Search federal awards, recipients, agencies, accounts, contracts, grants, loans, direct payments, insurance, and other assistance records.
- Advanced Search filters such as award type, date, place of performance, NAICS, PSC, Assistance Listing, agency, recipient, and disaster-emergency funding codes.
- Explore spending through Spending Explorer, agency profiles, and federal-account profiles before opening awards and recipients.
- The public REST API V2 with JSON responses for award and account workflows; current endpoint docs say authorization is not required.
- Download award archives, filtered awards, account data, search results, award profiles, and database files.
All details
Every attribute we track for Firefly III and USAspending.ShowHide
All details
| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Other | Other |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | Not specified | North America |
Coverage details | Not specified | Countries: US |
| Data | ||
Data freshness | Not specified | End of Day |
Data granularity | Not specified | EOD |
| Access & integrations | ||
API protocols | REST | REST |
API auth & delivery | Auth: OAuth2 and APIKeyWebhooks | Auth: None |
Import methods | CSVManual | Not specified |
Integrations | GoCardlessSimpleFINLunch FlowEnable BankingSlackDiscordMattermost | Not specified |
Export formats | CSV | CSVJSON |
| Plans & trust | ||
Vendor & support | Firefly III (open-source project)Support: Email | U.S. Department of the Treasury - Bureau of the Fiscal ServiceCountry: USSupport: Email |
Curation ratings | Methodology 4/5Reliability 4/5UX 4/5 | Methodology 5/5Reliability 5/5UX 4/5 |
Green tags are exclusive to that tool in this comparison.
Pricing
Plans, billing, free trials, and monthly prices.ShowHide
Pricing
| Tier | ||
|---|---|---|
| Free plan | Free | Free |
Alternatives
Free alternatives
Questions we keep getting
What's the difference between Firefly III and USAspending?
Firefly III leans toward portfolio, APIs & data feeds, and webhooks, while USAspending puts more weight on APIs & data feeds, data visualizations, and videos. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do Firefly III and USAspending cost?
Good news: both Firefly III and USAspending have free plans, so you can run them side by side and only pay if you hit a wall.
Do Firefly III and USAspending have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose Firefly III or USAspending?
It depends on what you're after. Pick Firefly III if portfolio and webhooks matter to you; go with USAspending if you'd rather have data visualizations and videos. And if you only need the basics both share, let price decide.
Can I export data from Firefly III and USAspending?
Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.
Can I track my portfolio with Firefly III or USAspending?
Firefly III handles portfolio tracking. USAspending is really a research tool; you'd track your portfolio elsewhere.
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.