VOL. XCIV, NO. 247

★ BEST INVESTING TOOLS COMPARISON ★

NO ADVICE

Wednesday, February 18, 2026

Tool Comparison

Firefly III vs Uncle Stock comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Firefly III logo

Firefly III

firefly-iii.org

PricingFree
PlatformsWeb, API
Uncle Stock logo

Uncle Stock

unclestock.com

PricingFree, Subscription
PlatformsWeb, API
Editor's pickHands-on review
Top 50 Investing ToolsThe global ranking of the best investing tools, ranked by community votes.

At a glance

Platforms
Firefly IIIWeb, API
Uncle StockWeb, API
Categories
Firefly III4
Uncle Stock12
Pricing details

Tool

Firefly III

Starting price

Free tierYes
Free trial

Plans & pricing

FreeFree

Tool

Uncle Stock

$10.83/mo

Starting price

Free tierYes
Free trial14 days

Plans & pricing

FreeFree
Bronze (Monthly)$20/mo
Bronze (Yearly)$130/yr
Silver (Monthly)$35/mo
Silver (Yearly)$210/yr
Gold (Monthly)$60/mo
Gold (Yearly)$350/yr
Category leaders
ScreenersUncle Stock
WatchlistUncle Stock
BacktestingUncle Stock
AlertsUncle Stock
FinancialsUncle Stock
Valuation ModelsUncle Stock
Browse the #1 tool in 90+ categories

Vote sentiment comparison

Loading sentiment chart...

Platform details

AttributeFirefly IIIUncle Stock
Asset types
Other
StocksCryptos
Experience
BeginnerIntermediateAdvanced
BeginnerIntermediateAdvanced
Regions
Not specified
North AmericaEuropeAPACLatAmMiddle EastAfrica
Data freshness
Not specifiedNot specified
API access
REST
REST
Export formats
CSV
CSV

Coverage overlap

Shared categories2

Categories where both tools offer overlapping coverage.

Firefly III strengths2

Categories covered by Firefly III only.

Frequently Asked Questions

What's the difference between Firefly III and Uncle Stock?

Firefly III focuses on Portfolio, APIs & SDKs, and Webhooks while Uncle Stock specializes in Screeners, Backtesting, and Data Visualizations. They overlap in 2 categories, so choose based on your preferred workflow and pricing.

How much do Firefly III and Uncle Stock cost?

Good news—both Firefly III and Uncle Stock offer free plans. You can try each platform without commitment and only pay when you need premium features.

Do Firefly III and Uncle Stock have APIs?

Yes, both platforms offer API access for developers and quants who want to build custom integrations or automate their workflows.

Should I choose Firefly III or Uncle Stock?

Choose Firefly III if you need Self-hosted open-source personal finance manager (AGPLv3 license)., and Supports double-entry bookkeeping with budgets, categories, tags, and detailed reporting.. Go with Uncle Stock if Screens 97,000+ stocks (nano-cap to large-cap) with 2,000+ metrics; pricing page lists “History: 23 years” on Bronze ., and Includes guru-inspired models/screens (Buffett, Graham, Lynch) and provides advice/scores and a price target metric set (plan-dependent) . better fits how you invest.

What asset classes do Firefly III and Uncle Stock cover?

Both cover common asset types. Firefly III also includes Other. Uncle Stock adds coverage for Stocks, and Cryptos.

Can I export data from Firefly III and Uncle Stock?

Both platforms let you export data to spreadsheets (CSV). This is useful for custom analysis or record-keeping.

Which has a better stock screener—Firefly III or Uncle Stock?

Uncle Stock includes a stock screener for finding investment ideas. Firefly III focuses on other analytical tools.

Can I track my portfolio with Firefly III or Uncle Stock?

Both platforms include portfolio tracking, so you can monitor your holdings, performance, and allocation in one place.

Keep Exploring

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.