★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
Firefly III vs PortfoliosLab
Pick Firefly III instead if
Firefly III
Free · Web · API
- You care about webhooks and other, things PortfoliosLab doesn't offer
Start here
PortfoliosLab
Free • From $8.33/mo · Web · API
- You care about watchlist, backtesting, and correlation, things Firefly III doesn't offer
- You're a long-term investor who cares more about fundamentals than headlines
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 PortfoliosLab cover a lot of the same ground (2 shared categories, portfolio and APIs & data feeds), so for the basics you won't go far wrong with either. PortfoliosLab simply does more: 17 categories to Firefly III's 4, including watchlist, backtesting, and correlation. Firefly III counters by being completely free.
What readers say
Firefly III
Vote once to reveal the community verdict.
PortfoliosLab
Vote once to reveal the community verdict.
Key differences at a glance
- Broader coverage
- PortfoliosLab17 vs 4 categories
- Free plan
- Both
See for yourself
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.ShowHide
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free | Free • From $8.33/mo |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | — | 23 limits: Free: watchlists: 1, Free: watchlist symbols: 100 +21 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | No | No |
Integrations | Salt Edge, GoCardless +2 more | MCP, ChatGPT +1 more |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +6 more |
Categories covered | 4 | 17 |
Regions | — | North America, Europe |
| Data & capabilities | ||
Data quality | — | 3 signals: Latency: End of Day, Granularity: EOD +1 more |
Capabilities | — | 6 signals: Factor exposure, VaR/ES +4 more |
| Try it | Visit Firefly III | Visit PortfoliosLab |
Where each one shines
What Firefly III and PortfoliosLab each do best.ShowHide
Where each one shines
What Firefly III and PortfoliosLab each do best.What Firefly III does best
- Self-host a personal finance ledger under the AGPLv3 open-source license rather than using a hosted budgeting app.
- Tracking accounts and transactions with double-entry bookkeeping, budgets, categories, tags, recurring transactions, subscriptions, piggy banks, rules, and reporting.
- The JSON REST API with OAuth2, personal access tokens, and a full OpenAPI specification for dashboards, automations, and personal analytics.
- Optional event webhooks for transaction create, update, and delete events when enabled through environment configuration.
- Import support for transaction data through the separate Firefly III Data Importer, CSV and CAMT.053 files, and optional providers such as Salt Edge, GoCardless, and SimpleFIN.
What PortfoliosLab does best
- Backtest portfolios and single instruments with configurable rebalancing, benchmark comparisons, and longer historical windows on paid plans.
- Analysis of performance, drawdowns, volatility, VaR, CVaR, Sharpe, Sortino, Omega, Calmar, Martin, Treynor, and related risk-adjusted ratios.
- Comparison tools for stocks, ETFs, mutual funds, funds, crypto, and currency instruments across performance, risk, drawdown, and diversification views.
- Correlation, alpha/beta, factor, diversification, and optimization tools including mean-variance, risk parity, HRP, and HERC models.
- Screening for stocks, ETFs, and mutual funds with daily-recalculated filters, then export results where the selected plan allows it.
Every detail we compared
Every tracked attribute for Firefly III and PortfoliosLab, side by side.ShowHide
Every detail we compared
Every tracked attribute for Firefly III and PortfoliosLab, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Other | StocksETFsMutual FundsFundsCryptosCurrencies |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Not specified | Retail TradersPro RetailInstitutional InvestorsLong-term InvestorsIndex/Passive InvestorsQuants/DevelopersAnalystsFinancial Advisors |
Regions | Not specified | North AmericaEurope |
Coverage details | Not specified | Countries: US and GBIdentifiers: Ticker |
| 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: NoneDocs |
Import methods | CSVManual | ManualCSV |
Integrations | Salt EdgeGoCardlessSimpleFINSlack | MCPChatGPTClaude |
Export formats | CSV | Not specified |
| Plans & trust | ||
Capability signals | Not specified | Factor exposureVaR/ESPerformance attributionRebalancingPortfolio factor exposureCorrelation |
Vendor & support | Firefly III (open-source project)Support: Email | PortfoliosLabSupport: Email |
Curation ratings | Methodology 4/5Reliability 4/5UX 4/5 | Not specified |
Green tags are exclusive to that tool in this comparison.
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.ShowHide
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.| Tier | ||
|---|---|---|
| Free plan | Free | Freewatchlists: 1 · watchlist symbols: 100 · +4 more |
| Entry paid plan | — | $8.33/mo“Plus”watchlists: 5 · private portfolios: 5 · +3 more |
| Tier 2 | — | $20.83/mo“Pro”watchlists: 10 · private portfolios: Unlimited · +3 more |
| Top plan | — | $75/mo“Max”watchlists: 10 · watchlist symbols: 2,000 · +5 more |
Questions we keep getting
What's the difference between Firefly III and PortfoliosLab?
Firefly III leans toward portfolio, APIs & data feeds, and webhooks, while PortfoliosLab puts more weight on portfolio, watchlist, and backtesting. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do Firefly III and PortfoliosLab cost?
Good news: both Firefly III and PortfoliosLab have free plans, so you can run them side by side and only pay if you hit a wall.
Do Firefly III and PortfoliosLab 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 PortfoliosLab?
It depends on what you're after. Pick Firefly III if webhooks and other matter to you; go with PortfoliosLab if you'd rather have watchlist and backtesting. And if you only need the basics both share, let price decide.
What asset classes do Firefly III and PortfoliosLab cover?
Firefly III covers other. PortfoliosLab covers stocks, ETFs, and mutual funds.
Can I export data from Firefly III and PortfoliosLab?
Firefly III exports to CSV. PortfoliosLab is stingier about getting data out.
Which has a better stock screener: Firefly III or PortfoliosLab?
PortfoliosLab has a stock screener for surfacing ideas; Firefly III doesn't, and focuses its energy elsewhere.
Can I track my portfolio with Firefly III or PortfoliosLab?
Yes, both do portfolio tracking: holdings, performance, and allocation in one place.
Keep researching
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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.