★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool details checked August 23, 2026
Tool Comparison
FactorsToday vs Uncle Stock
Pick FactorsToday if
FactorsToday
Free · Web · API
- Delayed quotes won't cut it; you need real-time data
- You care about quant, stock comparison, and factor exposure, things Uncle Stock doesn't offer
Pick Uncle Stock if
Uncle Stock
Free • From $130/yr · Web · API
- You care about financials, valuation models, and scores, things FactorsToday doesn't offer
- You're newer to investing and want something approachable
- 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.
See alternativesOutbound links may include affiliate or sponsor codes.
Our take
The bottom line
FactorsToday and Uncle Stock cover a lot of the same ground (5 shared categories, including screeners, data visualizations, and portfolio), so for the basics you won't go far wrong with either. The real difference is focus: only FactorsToday gives you quant and stock comparison, and only Uncle Stock gives you financials and valuation models.
What readers say
FactorsToday
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Uncle Stock
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Key differences at a glance
- Real-time data
- FactorsToday
- Free trial
- Uncle Stock14 days
- Beginner friendly
- Uncle Stock
- 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 $130/yr |
Free tier | Yes | Yes |
Free trial | — | 14 days |
Plan limits | — | 10 limits: Bronze (Monthly): history years: 25, Bronze (Monthly): us history years: 35 +8 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | No | No |
| Audience & fit | ||
Experience level | Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Analysts and Quants/Developers | Retail Traders, Pro Retail +2 more |
Categories covered | 13 | 11 |
Regions | — | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | 3 signals: Latency: Real-time and End of Day, Granularity: EOD and Minute +1 more | Granularity: EOD |
Data partners | — | 3 partners: Sharadar, EOD Historical Data +1 more |
Capabilities | 7 signals: Universe builder, Factors: Value, Quality, Momentum, Growth, LowVol, and Size +5 more | Universe builder |
| Try it | Visit FactorsToday | Visit Uncle Stock |
Where each one shines
What FactorsToday and Uncle Stock each do best.ShowHide
Where each one shines
What FactorsToday and Uncle Stock each do best.What FactorsToday does best
- Factor dashboards report intraday and multi-period returns, z-scores, pair relationships, correlations, seasonality, and valuations.
- Stock pages use ElasticNet regression with cross-validation to estimate exposures across four nested models.
- Portfolio analysis accepts holdings, compares exposures with a benchmark, and applies user-defined factor-return scenarios.
- Performance attribution applies rolling ordinary-least-squares regressions to uploaded or pasted returns and exports results to Excel.
- The factor builder searches for stocks matching target exposures and displays simulated historical results.
What Uncle Stock does best
- The screener covers more than 100,000 stocks and about 4,000 searchable financial and valuation metrics.
- More than 15 valuation models include DCF, Graham, earnings power value, and residual income methods.
- Screens support metric conditions, Must, Should, and Exclude clauses, geography, industry, and multiple sort fields.
- Silver backtests screens with yearly rebalancing.
- Backtest settings include sector caps, sell rules, stop losses, rebalancing choices, and position-sizing methods.
Every detail we compared
Every tracked attribute for FactorsToday and Uncle Stock, side by side.ShowHide
Every detail we compared
Every tracked attribute for FactorsToday and Uncle Stock, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsMutual FundsClosed-End Funds | StocksCryptos |
Experience | IntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | AnalystsQuants/Developers | Retail TradersPro RetailLong-term InvestorsValue Investors |
Regions | Not specified | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Identifiers: Ticker | Identifiers: Ticker |
| Data | ||
Data freshness | Real-timeEnd of Day | Not specified |
Data granularity | EODMinute | EOD |
Data partners | Not specified | SharadarEOD Historical DataFinancial Modeling Prep |
| Access & integrations | ||
API protocols | REST | REST |
API auth & delivery | Auth: None600 req/minDocs | Auth: APIKeyDocs |
Import methods | CSVManual | Manual |
Export formats | CSVExcelJSON | CSV |
| Plans & trust | ||
Capability signals | Universe builderFactors: Value, Quality, Momentum, Growth, LowVol, and SizeFactor exposurePerformance attributionPortfolio attributionPortfolio factor exposureCorrelation | Universe builder |
Vendor & support | FactorsToday (operated by Lukasz R. Tomicki)Country: USSupport: Email | Castlefish BVCountry: BelgiumSupport: Chat, Email, Phone, and Forum |
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 |
| Entry paid plan | — | $130/yr≈ $10.83/mo“Bronze (Yearly)”history years: 25 · us history years: 35 |
| Tier 2 | — | $210/yr≈ $17.50/mo“Silver (Yearly)”backtest rebalance: Yearly |
| Tier 3 | — | $20/mo“Bronze (Monthly)”history years: 25 · us history years: 35 |
| Tier 4 | — | $350/yr≈ $29.17/mo“Gold (Yearly)”api calls per month: 300 · backtest rebalance: Quarterly/Half-yearly |
| Tier 5 | — | $35/mo“Silver (Monthly)”backtest rebalance: Yearly |
| Top plan | — | $60/mo“Gold (Monthly)”api calls per month: 300 · backtest rebalance: Quarterly/Half-yearly |
| Free trial | — | 14 days |
Questions we keep getting
What's the difference between FactorsToday and Uncle Stock?
FactorsToday leans toward screeners, quant, and data visualizations, while Uncle Stock puts more weight on screeners, backtesting, and data visualizations. They overlap in 5 categories, so for most people it comes down to workflow preference and price.
How much do FactorsToday and Uncle Stock cost?
Good news: both FactorsToday and Uncle Stock have free plans, so you can run them side by side and only pay if you hit a wall.
Which is better for beginners: FactorsToday or Uncle Stock?
Uncle Stock is the friendlier place to start; its interface takes less getting used to. Both work fine once you're past the basics.
Do FactorsToday and Uncle Stock have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose FactorsToday or Uncle Stock?
It depends on what you're after. Pick FactorsToday if quant and stock comparison matter to you; go with Uncle Stock if you'd rather have financials and valuation models. And if you only need the basics both share, let price decide.
What asset classes do FactorsToday and Uncle Stock cover?
Both cover stocks. FactorsToday also handles ETFs, mutual funds, and closed-end funds. Uncle Stock adds cryptos on top.
Does FactorsToday or Uncle Stock have real-time data?
FactorsToday offers real-time data, which matters if you trade actively. Uncle Stock runs on delayed or end-of-day data, which is perfectly fine for longer-term investors who don't live and die by the tick.
Can I export data from FactorsToday and Uncle Stock?
Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.
Which has a better stock screener: FactorsToday or Uncle Stock?
Both FactorsToday and Uncle Stock include stock screeners, and they differ more in interface than raw power; try both and see which one clicks for you.
Can I track my portfolio with FactorsToday or Uncle Stock?
Yes, both do portfolio tracking: holdings, performance, and allocation in one place.
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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.