★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool details checked August 4, 2026
Tool Comparison
ChartMill vs DATAROMA
Start here
ChartMill
Free • Paid plans available · Web
- You care about screeners, stock comparison, and data visualizations, things DATAROMA doesn't offer
- You trade often and need tooling built for speed
Pick DATAROMA instead if
DATAROMA
Free · Web
- Go this way if it's completely free.
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
ChartMill and DATAROMA cover a lot of the same ground (3 shared categories, stock ideas, insider data, and institutional ownership), so for the basics you won't go far wrong with either. ChartMill simply does more: 24 categories to DATAROMA's 3, including screeners, stock comparison, and data visualizations. DATAROMA counters by being completely free.
What readers say
ChartMill
Vote once to reveal the community verdict.
DATAROMA
Vote once to reveal the community verdict.
Key differences at a glance
- Global coverage
- ChartMill
- Broader coverage
- ChartMill24 vs 3 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 • Paid plans available | Free |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | Free: financials history: 4 years/quarters (free users, example pages). | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | No | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +6 more | Retail Traders, Pro Retail +4 more |
Categories covered | 24 | 3 |
Regions | North America, Europe | North America |
| Data & capabilities | ||
Data quality | 3 signals: Latency: 15-min Delayed and End of Day, Granularity: EOD and Minute +1 more | — |
Capabilities | Custom formulas and Universe builder | — |
| Try it | Visit ChartMill | Visit DATAROMA |
Where each one shines
What ChartMill and DATAROMA each do best.ShowHide
Where each one shines
What ChartMill and DATAROMA each do best.What ChartMill does best
- Screening for stocks and ETFs with technical, fundamental, dividend, valuation, growth, profitability, health, and custom-expression filters.
- Starting point: a large Trading Ideas library covering breakout, pullback, CANSLIM, Minervini, GARP, dividend, value, growth, and other screen templates.
- ChartMill ratings, technical setup views, analyzer pages, and fundamental reports to compare candidates.
- Tools for building watchlists, save screens, export screener results, and trigger alerts from price, setup, earnings, news, insider, fundamental, analyst, and saved-screen conditions.
- Multi-chart layouts, saved chart configurations, drawings, indicators, event markers, and watchlist-based charting.
What DATAROMA does best
- Browsing access to curated superinvestor portfolios from well-known value investors and see each manager's reported holdings in one simple table.
- Views for reviewing position size, portfolio weight, share count, reported price, current price, activity labels, and 52-week context for tracked holdings.
- Comparison tools for quarter-based portfolio changes, top buys, top sells, and manager-level activity from public filing data.
- The Superinvestor Holdings Summary and Grand Portfolio views to see which stocks appear across multiple tracked investors.
- Stock pages for Super Investor Stats, ownership count, rank across tracked portfolios, and related insider buying or selling summaries.
Every detail we compared
Every tracked attribute for ChartMill and DATAROMA, side by side.ShowHide
Every detail we compared
Every tracked attribute for ChartMill and DATAROMA, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | StocksETFs |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailDay TradersSwing TradersLong-term InvestorsGrowth InvestorsValue InvestorsDividend Investors | Retail TradersPro RetailLong-term InvestorsValue InvestorsAnalystsStudents/Researchers |
Regions | North AmericaEurope | North America |
Coverage details | 17 countries9 exchangesIdentifiers: Ticker and ISIN | Identifiers: Ticker |
| Data | ||
Data freshness | 15-min DelayedEnd of Day | Not specified |
Data granularity | EODMinute | Not specified |
| Access & integrations | ||
Export formats | CSV | Not specified |
| Plans & trust | ||
Capability signals | Custom formulasUniverse builder | Not specified |
Vendor & support | ChartMill | 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 | Freefinancials history: 4 years/quarters (free users, example pages). | — |
| Entry paid plan | $34.97/mo“Monthly Subscription” | — |
| Top plan | $299.97/yr“Annual Subscription + Free Course” | — |
Questions we keep getting
What's the difference between ChartMill and DATAROMA?
ChartMill leans toward screeners, stock ideas, and stock comparison, while DATAROMA puts more weight on stock ideas, institutional ownership, and insider data. They overlap in 3 categories, so for most people it comes down to workflow preference and price.
How much do ChartMill and DATAROMA cost?
Good news: both ChartMill and DATAROMA have free plans, so you can run them side by side and only pay if you hit a wall.
Should I choose ChartMill or DATAROMA?
It depends on what you're after. Pick ChartMill if screeners and stock comparison matter to you; go with DATAROMA if you prefer its overall approach. And if you only need the basics both share, let price decide.
Which covers international markets: ChartMill or DATAROMA?
ChartMill has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. DATAROMA is more region-specific, mainly North America.
Can I export data from ChartMill and DATAROMA?
ChartMill exports to CSV. DATAROMA is stingier about getting data out.
Is ChartMill or DATAROMA better for day trading?
ChartMill is the one positioned more for active traders. DATAROMA is the better fit if you care less about fast trading workflows and more about a calmer research process.
Which has a better stock screener: ChartMill or DATAROMA?
ChartMill has a stock screener for surfacing ideas; DATAROMA doesn't, and focuses its energy elsewhere.
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.