VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
FINVIZ vs Marketstack
Start here
FINVIZ
Free • From $299.50/yr · Web · API
- You want screeners, ETF screeners, and stock comparison.
- You're newer to investing and want something approachable
- You trade often and need tooling built for speed
Pick Marketstack instead if
Marketstack
Free • From $9.99/mo · Web · API
- You want the cheaper way in: plans start at $9.99/mo instead of $24.96/mo
- You want splits and analyst ratings & price targets.
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
FINVIZ and Marketstack cover a lot of the same ground (3 shared categories, dividends, ETF analysis, and APIs & data feeds), so for the basics you won't go far wrong with either. FINVIZ simply does more: 17 categories to Marketstack's 5, including screeners, ETF screeners, and stock comparison. Marketstack counters by starting cheaper at $9.99/mo.
What readers say
FINVIZ
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Marketstack
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Key differences at a glance
- Cheaper paid plan
- Marketstack$9.99/mo vs $24.96/mo
- Free trial
- FINVIZ7 days
- Broader coverage
- FINVIZ17 vs 5 categories
- Global coverage
- Marketstack
- Beginner friendly
- FINVIZ
- 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 • From $299.50/yr | Free • From $9.99/mo |
Free tier | Yes | Yes |
Free trial | 7 days | — |
Plan limits | 18 limits: Free: screener presets: 50, Free: items per page: 20 (table) / 36 (charts) / 10 (snapshots) +16 more | 12 limits: Free: requests per month: 100, Free: history: 1 year +10 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | No | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +3 more | Quants/Developers, Analysts +2 more |
Categories covered | 17 | 5 |
Regions | North America | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | Latency: Real-time | 4 signals: Latency: End of Day and Real-time, Granularity: EOD and Minute +2 more |
Data partners | — | Tiingo |
Capabilities | Universe builder and Correlation | — |
Security | — | Status page and Encryption in transit |
| Try it | Visit FINVIZ | Visit Marketstack |
Where each one shines
What FINVIZ and Marketstack each do best.ShowHide
Where each one shines
What FINVIZ and Marketstack each do best.What FINVIZ does best
- Screening for U.S. stocks and ETFs with a mix of valuation, growth, profitability, technical, ownership, dividend, and performance filters.
- Heat maps, sector/group views, and snapshot pages to spot where market strength, weakness, and unusual moves are clustering.
- Saved screener presets with table, chart and snapshot result views.
- Quote pages support ticker-level research with links to financials, charts, news, insider trades, filings, options, short interest, and peer comparisons.
- Review fundamental context with financial statements, EPS and sales charts, ownership pages, insider transactions, and 13F manager holdings.
What Marketstack does best
- V2 REST/JSON endpoints with API-key authentication for market data and reference data workflows.
- Starting point: end-of-day prices, adjusted fields, splits, dividends, ticker metadata, exchange metadata, currencies, and timezones.
- Historical date ranges for EOD history, with deeper history available on paid tiers.
- Intraday bar intervals down to one minute where plan access and endpoint limits allow.
- Upgrade to Professional or higher for real-time-style updates, real-time stock price endpoints, and commodities endpoints.
Every detail we compared
Every tracked attribute for FINVIZ and Marketstack, side by side.ShowHide
Every detail we compared
Every tracked attribute for FINVIZ and Marketstack, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsOptions | StocksETFsBondsCommoditiesOther |
Experience | BeginnerIntermediateAdvanced | IntermediateAdvanced |
Target audience | Retail TradersPro RetailDay TradersSwing TradersLong-term Investors | Quants/DevelopersAnalystsInstitutional InvestorsStudents/Researchers |
Regions | North America | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Countries: USIdentifiers: Ticker | Identifiers: Ticker, CIK, ISIN, and CUSIP |
| Data | ||
Data freshness | Real-time | End of DayReal-time |
Data granularity | Not specified | EODMinute |
Data partners | Not specified | Tiingo |
| Access & integrations | ||
API protocols | Not specified | REST |
API auth & delivery | Not specified | Auth: APIKeyDocs |
Export formats | Excel | Not specified |
| Plans & trust | ||
Security & compliance | Not specified | Status pageEncryption in transit |
Capability signals | Universe builderCorrelation | Not specified |
Vendor & support | Support: Email | APILayerFounded 2018Support: Email |
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 | Freescreener presets: 50 · items per page: 20 (table) / 36 (charts) / 10 (snapshots) · +5 more | Freerequests per month: 100 · history: 1 year · +1 more |
| Entry paid plan | $299.50/yr≈ $24.96/mo“Elite annual”screener presets: 200 · portfolios: 100 · +2 more | $9.99/mo“Basic”requests per month: 10,000 · overage per request usd: 0.004 · +2 more |
| Tier 2 | $39.50/mo“Elite monthly”screener presets: 200 · items per page: Up to 100 (table) / 120 (charts) / 50 (snapshots) · +5 more | $49.99/mo“Professional”requests per month: 100,000 · overage per request usd: 0.002 · +1 more |
| Top plan | — | $149.99/mo“Business”requests per month: 500,000 · overage per request usd: 0.001 |
| Custom / enterprise | — | Contact sales“Enterprise” |
| Free trial | 7 days | — |
Questions we keep getting
What's the difference between FINVIZ and Marketstack?
FINVIZ leans toward screeners, ETF screeners, and stock comparison, while Marketstack puts more weight on APIs & data feeds, dividends, and splits. They overlap in 3 categories, so for most people it comes down to workflow preference and price.
How much do FINVIZ and Marketstack cost?
Good news: both FINVIZ and Marketstack have free plans, so you can run them side by side and only pay if you hit a wall.
Which is better for beginners: FINVIZ or Marketstack?
FINVIZ is the friendlier place to start; its interface takes less getting used to. Both work fine once you're past the basics.
Do FINVIZ and Marketstack have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose FINVIZ or Marketstack?
It depends on what you're after. Pick FINVIZ if screeners and ETF screeners matter to you; go with Marketstack if you'd rather have splits and analyst ratings & price targets. And if you only need the basics both share, let price decide.
What asset classes do FINVIZ and Marketstack cover?
Both cover stocks and ETFs. FINVIZ also handles options. Marketstack adds bonds, commodities, and other on top.
Do FINVIZ and Marketstack offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Which covers international markets: FINVIZ or Marketstack?
Marketstack has documented international coverage (North America, Europe, APAC, LatAm, and more), so it's the safer bet if you hold non-US stocks. FINVIZ is more region-specific, mainly North America.
Can I export data from FINVIZ and Marketstack?
FINVIZ exports to Excel. Marketstack is stingier about getting data out.
Is FINVIZ or Marketstack better for day trading?
FINVIZ is the one positioned more for active traders. Marketstack 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: FINVIZ or Marketstack?
FINVIZ has a stock screener for surfacing ideas; Marketstack doesn't, and focuses its energy elsewhere.
Can I track my portfolio with FINVIZ or Marketstack?
FINVIZ handles portfolio tracking. Marketstack is really a research tool; you'd track your portfolio 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.