★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
InsideArbitrage vs MarketScreener
Pick InsideArbitrage if
InsideArbitrage
From $100/mo · Web
- Delayed quotes won't cut it; you need real-time data
- You care about corporate actions & special situations, dividends, and splits, things MarketScreener doesn't offer
Pick MarketScreener if
MarketScreener
Free • From $34/mo · Web · Mobile
- You'd rather start free and only pay if you outgrow it
- You want the cheaper way in: plans start at $34/mo instead of $100/mo
- You do a lot of your research from your phone
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
InsideArbitrage and MarketScreener cover a lot of the same ground (10 shared categories, including news, alerts, and calendar), so for the basics you won't go far wrong with either. The real difference is focus: only InsideArbitrage gives you corporate actions & special situations and dividends, and only MarketScreener gives you stock ideas and financials.
What readers say
InsideArbitrage
Vote once to reveal the community verdict.
MarketScreener
Vote once to reveal the community verdict.
Key differences at a glance
- Free plan
- MarketScreener
- Cheaper paid plan
- MarketScreener$34/mo vs $100/mo
- Mobile app
- MarketScreener
- Real-time data
- InsideArbitrage
- Global coverage
- MarketScreener
- Asset coverage
- MarketScreenerAdds commodities and currencies
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 | From $100/mo | Free • From $34/mo |
Free tier | No | Yes |
Free trial | — | — |
Plan limits | — | 6 limits: Access: annual equivalent monthly usd: 28, Access: annual billing usd: 336 +4 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | Yes |
API access | No | No |
Broker sync | No | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +4 more |
Categories covered | 18 | 16 |
Regions | North America | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | 4 signals: Latency: Real-time and End of Day, Granularity: EOD +2 more | — |
Data partners | — | 3 partners: FactSet, Morningstar +1 more |
Capabilities | Universe builder | Universe builder |
| Try it | Visit InsideArbitrage | Visit MarketScreener |
Where each one shines
What InsideArbitrage and MarketScreener each do best.ShowHide
Where each one shines
What InsideArbitrage and MarketScreener each do best.What InsideArbitrage does best
- Tracking announced merger-arbitrage deals with spread context, calendars, deal updates, Deals in the Works, and post-mortem research.
- Tracked-deal workflows to filter relevant news, SEC filings, and tweets around the active-deal symbols a premium user follows.
- Research coverage for insider activity with Insider Weekends, cluster buys, buys near highs, flip-floppers, top-performing insiders, sector heat maps, and premium insider screens.
- Monitoring buyback situations through daily buyback announcements, searchable buyback history, Buyback Wednesdays, and Double Dipper screens that combine insider buying with repurchases.
- Monitoring spinoffs, completed spinoffs, Spinsider ideas, CVR deals, CVR outcomes, tender offers, reverse splits, activist campaigns, C-suite transitions, and M&A news feeds.
What MarketScreener does best
- Monitoring market news and quotes across equities, ETFs, commodities, currencies, forex, and cryptocurrencies.
- Tools for building custom watchlists with quotes, news, earnings releases, valuation trends, broker recommendations, and smart email alerts.
- Screening for stocks globally with hundreds of fundamental and technical criteria, with higher filter counts reserved for Premium and Expert tiers.
- Dynamic charts with configurable technical indicators and quick switching between individual stocks and personal lists.
- Tools for exploring thematic investment lists for idea discovery and compare themes against index trends and historical performance.
Every detail we compared
Every tracked attribute for InsideArbitrage and MarketScreener, side by side.ShowHide
Every detail we compared
Every tracked attribute for InsideArbitrage and MarketScreener, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | StocksETFsCommoditiesCurrenciesCryptos |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Not specified | Retail TradersPro RetailLong-term InvestorsValue InvestorsGrowth InvestorsDividend Investors |
Regions | North America | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Countries: USExchanges: XNYS, XNAS, and ARCXIdentifiers: Ticker and CIK | Identifiers: Ticker and ISIN |
| Data | ||
Data freshness | Real-timeEnd of Day | Not specified |
Data granularity | EOD | Not specified |
Data partners | Not specified | FactSetMorningstarS&P Global Market Intelligence |
| Access & integrations | ||
Import methods | Manual | Not specified |
| Plans & trust | ||
Capability signals | Universe builder | Universe builder |
Vendor & support | InsideArbitrageCountry: USSupport: Email | Surperformance SASCountry: France |
Curation ratings | Methodology 3/5Reliability 3/5UX 4/5 | 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 | — | Free“Free (Member)” |
| Entry paid plan | $100/mo“Premium – Annual” | $34/mo“Access”annual equivalent monthly usd: 28 · annual billing usd: 336 |
| Tier 2 | $150/mo“Premium – Monthly” | $59/mo“Premium”annual billing usd: 600 · annual equivalent monthly usd: 50 |
| Tier 3 | $300/mo“IA Professional – Annual” | $279/mo“Expert”annual billing usd: 2,628 · annual equivalent monthly usd: 219 |
| Top plan | $400/mo“IA Professional (4 seats)” | — |
Questions we keep getting
What's the difference between InsideArbitrage and MarketScreener?
InsideArbitrage leans toward news, alerts, and calendar, while MarketScreener puts more weight on news, alerts, and calendar. They overlap in 10 categories, so for most people it comes down to workflow preference and price.
Is InsideArbitrage or MarketScreener free to use?
MarketScreener has a free tier, so you can get started without paying anything. InsideArbitrage is paid-only. If budget matters, start with MarketScreener and see how far it takes you before opening your wallet.
Can I use InsideArbitrage or MarketScreener on my phone?
MarketScreener lists a dedicated mobile app, so it travels better. InsideArbitrage doesn't list a dedicated mobile app; its documented access is web.
Should I choose InsideArbitrage or MarketScreener?
It depends on what you're after. Pick InsideArbitrage if corporate actions & special situations and dividends matter to you; go with MarketScreener if you'd rather have stock ideas and financials. And if you only need the basics both share, let price decide.
What asset classes do InsideArbitrage and MarketScreener cover?
Both cover stocks and ETFs. MarketScreener adds commodities, currencies, and cryptos on top.
Does InsideArbitrage or MarketScreener have real-time data?
InsideArbitrage offers real-time data, which matters if you trade actively. MarketScreener 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.
Which covers international markets: InsideArbitrage or MarketScreener?
MarketScreener has documented international coverage (North America, Europe, APAC, LatAm, and more), so it's the safer bet if you hold non-US stocks. InsideArbitrage is more region-specific, mainly North America.
Which has a better stock screener: InsideArbitrage or MarketScreener?
Both InsideArbitrage and MarketScreener 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 InsideArbitrage or MarketScreener?
Yes, both do portfolio tracking: holdings, performance, and allocation in one place.
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.