★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Source check: Zacks (Zacks.com) checked August 4, 2026
Tool Comparison
Insider Screener vs Zacks (Zacks.com)
Pick Insider Screener instead if
Insider Screener
Free • Paid plans available · Web · API
- You want an API so you can script or automate things
- You care about insider data and APIs & data feeds, things Zacks (Zacks.com) doesn't offer
Start here
Zacks (Zacks.com)
Free • From $20.75/mo · Web · Mobile
- You do a lot of your research from your phone
- You care about ETF screeners, portfolio, and news, things Insider Screener doesn't offer
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
Insider Screener and Zacks (Zacks.com) cover a lot of the same ground (4 shared categories, including screeners, watchlist, and alerts), so for the basics you won't go far wrong with either. Zacks (Zacks.com) simply does more: 12 categories to Insider Screener's 6, including ETF screeners, portfolio, and news, plus a mobile app. Insider Screener counters by being completely free.
What readers say
Insider Screener
Vote once to reveal the community verdict.
Zacks (Zacks.com)
Vote once to reveal the community verdict.
Key differences at a glance
- Mobile app
- Zacks (Zacks.com)
- Free trial
- Zacks (Zacks.com)30 days
- Broader coverage
- Zacks (Zacks.com)12 vs 6 categories
- API access
- Insider Screener
- Asset coverage
- Zacks (Zacks.com)Adds ETFs and mutual funds
- 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 • From $20.75/mo |
Free tier | Yes | Yes |
Free trial | — | 30 days |
Plan limits | — | 4 limits: Premium Annual: annual price usd: 249, Ultimate Monthly: trial promo: $1 for 30 days shown on current product page +2 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | Yes |
API access | Yes | No |
Broker sync | No | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | — |
Categories covered | 6 | 12 |
Regions | North America, Europe, APAC | North America, Europe |
| Data & capabilities | ||
Data quality | Latency: Real-time | 3 signals: Latency: Real-time and End of Day, Granularity: EOD +1 more |
Capabilities | Universe builder | Factors: Value, Momentum, and Growth |
| Try it | Visit Insider Screener | Visit Zacks (Zacks.com) |
Where each one shines
What Insider Screener and Zacks (Zacks.com) each do best.ShowHide
Where each one shines
What Insider Screener and Zacks (Zacks.com) each do best.What Insider Screener does best
- Tracking insider buying and selling across 16 markets, including the U.S., Canada, major European markets, India, and Australia.
- Screening for insider buys, sells, cluster activity, buying-the-dip behavior, executive transactions, and earnings-related trades.
- Standardized cross-market data to compare insider activity across jurisdictions that normally publish filings in different formats.
- Updates that appear within minutes of regulatory filings from regulators and exchanges.
- Support for saving searches, receive daily email reports, and create alerts on paid web tiers.
What Zacks (Zacks.com) does best
- The Zacks Rank system from #1 to #5 and Zacks Industry Rank on company pages to frame earnings-revision-driven research.
- Comparison tools for Value, Growth, and Momentum Style Scores alongside the rank when screening or reviewing individual stocks.
- Screening for stocks, ETFs, and mutual funds with hundreds of filters, with 45+ Premium Screens gated behind paid access.
- Direct access to ticker pages with analyst forecasts, earnings estimates, price targets, company research, and related market context.
- Views for reviewing Price-Consensus-EPS Surprise charts that connect historical estimates, actual earnings, and surprise patterns.
Every detail we compared
Every tracked attribute for Insider Screener and Zacks (Zacks.com), side by side.ShowHide
Every detail we compared
Every tracked attribute for Insider Screener and Zacks (Zacks.com), side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Stocks | StocksETFsMutual Funds |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | North AmericaEuropeAPAC | North AmericaEurope |
Coverage details | 14 countriesIdentifiers: Ticker | Identifiers: Ticker |
| Data | ||
Data freshness | Real-time | Real-timeEnd of Day |
Data granularity | Not specified | EOD |
| Access & integrations | ||
API protocols | REST | Not specified |
API auth & delivery | Auth: APIKey | Not specified |
Import methods | Not specified | Manual |
Export formats | CSVExcel | Not specified |
| Plans & trust | ||
Capability signals | Universe builder | Factors: Value, Momentum, and Growth |
Vendor & support | insiderscreener.com Inc.Country: United StatesSupport: Email | Zacks Investment Research |
Curation ratings | Methodology 3/5Reliability 4/5UX 4/5 | Methodology 3/5Reliability 4/5UX 4/5 |
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“Free (browse/limited)” | Free |
| Entry paid plan | Subscription“Plus” | $20.75/mo“Premium Annual”annual price usd: 249 |
| Tier 2 | Subscription“Pro” | $41.25/mo“Investor Collection Annual” |
| Tier 3 | Subscription“Premium” | $59/mo“Investor Collection Monthly” |
| Tier 4 | Subscription“API Starter (€25/mo)” | $249.58/mo“Ultimate Annual”annual price usd: 2,995 · trial promo: $1 for 30 days shown on current product page |
| Tier 5 | Subscription“API Pro (€85/mo)” | $299/mo“Ultimate Monthly”trial promo: $1 for 30 days shown on current product page |
| Top plan | Subscription“API Research (€299/mo quarterly / €339 monthly)” | — |
| Free trial | — | 30 days |
Questions we keep getting
What's the difference between Insider Screener and Zacks (Zacks.com)?
Insider Screener leans toward screeners, watchlist, and alerts, while Zacks (Zacks.com) puts more weight on screeners, ETF screeners, and watchlist. They overlap in 4 categories, so for most people it comes down to workflow preference and price.
How much do Insider Screener and Zacks (Zacks.com) cost?
Good news: both Insider Screener and Zacks (Zacks.com) have free plans, so you can run them side by side and only pay if you hit a wall.
Can I use Insider Screener or Zacks (Zacks.com) on my phone?
Zacks (Zacks.com) lists a dedicated mobile app, so it travels better. Insider Screener doesn't list a dedicated mobile app; its documented access is web and API.
Does Insider Screener or Zacks (Zacks.com) have an API?
Insider Screener has an API for programmatic access and custom integrations. Zacks (Zacks.com) doesn't, so you're working through its interface.
Should I choose Insider Screener or Zacks (Zacks.com)?
It depends on what you're after. Pick Insider Screener if insider data and APIs & data feeds matter to you; go with Zacks (Zacks.com) if you'd rather have ETF screeners and portfolio. And if you only need the basics both share, let price decide.
What asset classes do Insider Screener and Zacks (Zacks.com) cover?
Both cover stocks. Zacks (Zacks.com) adds ETFs and mutual funds on top.
Do Insider Screener and Zacks (Zacks.com) offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Can I export data from Insider Screener and Zacks (Zacks.com)?
Insider Screener exports to CSV and Excel. Zacks (Zacks.com) is stingier about getting data out.
Which has a better stock screener: Insider Screener or Zacks (Zacks.com)?
Both Insider Screener and Zacks (Zacks.com) 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 Insider Screener or Zacks (Zacks.com)?
Zacks (Zacks.com) handles portfolio tracking. Insider Screener is really a research tool; you'd track your portfolio elsewhere.
Keep researching
More comparisons to check
Other tools you might like
Keep Exploring
Feedback
Spot stale pricing, missing features, or a comparison that feels off? Send feedback on the verdict, table, alternatives, or recommendation.
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.