VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
InsideArbitrage vs Marketlog
Pick InsideArbitrage if
InsideArbitrage
Free • From $100/mo · Web
- You want corporate actions & special situations, insider data, and regulatory filings monitoring.
Pick Marketlog if
Marketlog
Free • From $79.99/yr · Web · Mobile
- You want the cheaper way in: plans start at $6.67/mo instead of $100/mo
- Delayed quotes won't cut it; you need real-time data
- 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 Marketlog 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. InsideArbitrage includes corporate actions & special situations and insider data, and Marketlog includes risk metrics and monte carlo.
What readers say
InsideArbitrage
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Marketlog
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Key differences at a glance
- Cheaper paid plan
- Marketlog$6.67/mo vs $100/mo
- Free trial
- Marketlog7 days
- Mobile app
- Marketlog
- Real-time data
- Marketlog
- Broker sync
- Marketlog
- Asset coverage
- MarketlogAdds options and bonds
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 $100/mo | Free • From $79.99/yr |
Free tier | Yes | Yes |
Free trial | — | 7 days |
Plan limits | — | 19 limits: Free: portfolios: Unlimited, Free: holdings: Unlimited +17 more |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | Yes |
API access | No | No |
Broker sync | No | Yes |
Integrations | — | Yodlee, Fidelity Investments +5 more |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +4 more |
Categories covered | 17 | 18 |
Regions | — | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | — | 5 signals: Latency: Real-time and End of Day, Granularity: Minute and EOD +3 more |
Data partners | — | Yodlee and Third-party data licensors |
Capabilities | Universe builder | 3 signals: Monte Carlo, Broker sync +1 more |
Security | — | Encryption at rest and Encryption in transit |
| Try it | Visit InsideArbitrage | Visit Marketlog |
Where each one shines
What InsideArbitrage and Marketlog each do best.ShowHide
Where each one shines
What InsideArbitrage and Marketlog each do best.What InsideArbitrage does best
- Track announced mergers, spreads, calendars, deal updates and potential deals.
- Filter news, SEC filings and social posts for premium tracked-deal symbols.
- Research insider activity through transaction pages, weekly articles, cluster-buy screens and insider rankings.
- Follow buybacks, spinoffs, CVRs, tender offers, reverse splits, activist campaigns and management changes.
- Use 13F, 13D, 13G and Form 4 data for institutional and insider ownership context.
What Marketlog does best
- Portfolio tracking for stocks, ETFs, options, bonds, funds, forex, crypto, indices, and other assets on web, iOS, and Android.
- Enter transactions manually or connect supported brokerage and bank accounts through Marketlog's data provider.
- Broker and bank connectivity for 2,000+ supported institutions, with examples such as Fidelity, E*TRADE, Vanguard, Schwab, Interactive Brokers, and Robinhood.
- Monitor gains, drawdowns, returns, diversification, goals, target allocation, benchmarking, and daily or weekly portfolio email updates.
- Automatic dividend tracking, dividend calendars, upcoming payment alerts, and yield notifications.
Every detail we compared
Every tracked attribute for InsideArbitrage and Marketlog, side by side.ShowHide
Every detail we compared
Every tracked attribute for InsideArbitrage and Marketlog, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | StocksETFsOptionsBondsFundsCurrenciesCryptosOther |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Not specified | Retail TradersPro RetailLong-term InvestorsDividend InvestorsDay TradersSwing Traders |
Regions | Not specified | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Identifiers: Ticker and CIK | 26 countriesIdentifiers: Ticker and CUSIP |
| Data | ||
Data freshness | Not specified | Real-timeEnd of Day |
Data granularity | Not specified | MinuteEOD |
Pricing sources | Not specified | VendorManual |
Data partners | Not specified | YodleeThird-party data licensors |
| Access & integrations | ||
Import methods | Not specified | BrokerOAuthManual |
Integrations | Not specified | YodleeFidelity InvestmentsE*TRADE from Morgan StanleyVanguardSchwabInteractive BrokersRobinhood |
Export formats | Not specified | Image |
| Plans & trust | ||
Security & compliance | Not specified | Encryption at restEncryption in transit |
Capability signals | Universe builder | Monte CarloBroker syncMulti-currency |
Vendor & support | InsideArbitrageSupport: Email | Myfxbook Ltd.Country: IsraelSupport: Email |
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“Public Articles and Data” | Freeportfolios: Unlimited · holdings: Unlimited · +3 more |
| Entry paid plan | $100/mo“Premium - Annual” | $79.99/yr≈ $6.67/mo“Plus Annual”portfolios: Unlimited · holdings: Unlimited · +2 more |
| Tier 2 | $150/mo“Premium - Monthly” | $7.99/mo“Plus Monthly”portfolios: Unlimited · holdings: Unlimited · +2 more |
| Tier 3 | — | $179.99/yr≈ $15/mo“Pro Annual”portfolios: Unlimited · holdings: Unlimited · +1 more |
| Top plan | — | $17.99/mo“Pro Monthly”portfolios: Unlimited · holdings: Unlimited · +1 more |
| Free trial | — | 7 days |
Questions we keep getting
What's the difference between InsideArbitrage and Marketlog?
InsideArbitrage leans toward news, alerts, and calendar, while Marketlog puts more weight on portfolio, watchlist, and institutional ownership. They overlap in 10 categories, so for most people it comes down to workflow preference and price.
How much do InsideArbitrage and Marketlog cost?
Good news: both InsideArbitrage and Marketlog have free plans, so you can run them side by side and only pay if you hit a wall.
Can I use InsideArbitrage or Marketlog on my phone?
Marketlog 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 Marketlog?
It depends on what you're after. Pick InsideArbitrage if corporate actions & special situations and insider data matter to you; go with Marketlog if you'd rather have risk metrics and monte carlo. And if you only need the basics both share, let price decide.
What asset classes do InsideArbitrage and Marketlog cover?
Both cover stocks and ETFs. Marketlog adds options, bonds, and funds on top.
Does InsideArbitrage or Marketlog have real-time data?
Marketlog offers real-time data, which matters if you trade actively. InsideArbitrage 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 InsideArbitrage or Marketlog connect to my broker?
Marketlog syncs with brokers automatically. With InsideArbitrage, you're entering holdings by hand or importing files.
Is InsideArbitrage or Marketlog better for day trading?
Marketlog is the one positioned more for active traders. InsideArbitrage 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: InsideArbitrage or Marketlog?
InsideArbitrage has a stock screener for surfacing ideas; Marketlog doesn't, and focuses its energy elsewhere.
Can I track my portfolio with InsideArbitrage or Marketlog?
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.