VOL. XCIV, NO. 247
★ BEST INVESTING TOOLS COMPARISON ★
NO ADVICE
Sunday, May 31, 2026
Tool Comparison · Sunday, May 31, 2026
Marketlog vs Portfolio123
Marketlog vs Portfolio123: which investing tool fits your workflow? Compare pricing, features, platforms, and verdict in seconds.
Marketlog
marketlog.com
Best for investor holdings, and risk metrics
- Pricing
- Free • From $79.99/yr
- Platforms
- Web, Mobile
Portfolio123
Pickportfolio123.com
Best for screeners, and quant
- Pricing
- Free • From $25/mo
- Platforms
- Web, API, Desktop
Outbound links may include affiliate or sponsor codes.
Comparison snapshot
Who should choose which?
Choose
Marketlog if…
- You need a mobile app for on-the-go research
- You actively trade and need real-time tooling
- You’re a long-term or value-focused investor
- You need all-in-one portfolio tracker for stocks/equities, etfs, options, bonds, funds, currencies/forex, crypto, and indices, available through the marketlog web app and ios/android mobile apps.
Choose
Portfolio123 if…
- You build with APIs or automate workflows
- You need web‑based quant research terminal for building multifactor ranking systems, stock/etf screens, and complete rules‑based strategies with no programming, powered by point‑in‑time factset data and marketed as free of survivorship and look‑ahead bias.
- You need supports realistic simulations and backtests over roughly 20 years of history for us, canadian, and european equities, with custom universes, separate buy/sell rules, position sizing, hedging, and “book of strategies” to combine and analyze correlated systems.
- You need stock & etf coverage uses fundamentals, estimates, corporate actions, plus industry/sector classification, with “over 15,000 current us, canadian, and european stocks” and many more historical issues.
Consider alternatives if…
- You want broader category coverage in one tool.
- Neither pricing tier fits your budget.
Side-by-side feature breakdown
| Attribute | Marketlog | Portfolio123 |
|---|---|---|
Asset types | StocksETFsOptionsBondsFundsCurrenciesCryptosOther | StocksETFsClosed-End Funds |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | North AmericaEuropeAPACLatAmMiddle EastAfrica | North AmericaEurope |
Data freshness | Real-timeEnd of Day | Real-timeEnd of Day |
API access | Not specified | REST |
Export formats | Image | JSON |
Seen enough? Open either tool and try it now.
Pricing breakdown
Tool
Marketlog
$6.67/mo
Starting price
Plans & pricing
Tool
Portfolio123
$9
Starting price
Plans & pricing
Coverage overlap
Categories where both tools offer overlapping coverage.
Categories covered by Marketlog only.
Categories covered by Portfolio123 only.
Community category leaders
Vote sentiment comparison
Loading sentiment chart...
Still deciding? Get hands-on with both — most plans offer a free tier or trial.
Frequently Asked Questions
What's the difference between Marketlog and Portfolio123?
Marketlog focuses on Portfolio, Watchlist, and Investor Holdings while Portfolio123 specializes in Screeners, Data Visualizations, and Quant. They overlap in 9 categories, so choose based on your preferred workflow and pricing.
How much do Marketlog and Portfolio123 cost?
Good news—both Marketlog and Portfolio123 offer free plans. You can try each platform without commitment and only pay when you need premium features.
Can I use Marketlog or Portfolio123 on my phone?
Marketlog has a mobile app so you can check your research on the go. Portfolio123 is web-only, so you'll need a browser to access it from mobile devices.
Does Marketlog or Portfolio123 have an API?
Portfolio123 provides API access for programmatic data retrieval and custom integrations. Marketlog doesn't currently offer an API, so you'll need to use their web interface.
Should I choose Marketlog or Portfolio123?
Choose Marketlog if you need All-in-one portfolio tracker for stocks/equities, ETFs, options, bonds, funds, currencies/forex, crypto, and indices, available through the Marketlog web app and iOS/Android mobile apps., and Manual and automated portfolio tracking: users can enter transactions manually or connect supported brokerage/bank accounts through Marketlog's data provider; connected portfolios are usually fetched end-of-day and updated with live market data during market hours.. Go with Portfolio123 if Web‑based quant research terminal for building multifactor ranking systems, stock/ETF screens, and complete rules‑based strategies with no programming, powered by point‑in‑time FactSet data and marketed as free of survivorship and look‑ahead bias., and Supports realistic simulations and backtests over roughly 20 years of history for US, Canadian, and European equities, with custom universes, separate buy/sell rules, position sizing, hedging, and “Book of Strategies” to combine and analyze correlated systems. better fits how you invest.
What asset classes do Marketlog and Portfolio123 cover?
Both cover Stocks, and ETFs. Marketlog also includes Options, Bonds, Funds, Currencies, Cryptos, and Other. Portfolio123 adds coverage for Closed-End Funds.
Do Marketlog and Portfolio123 offer real-time data?
Yes, both platforms provide real-time market data. This makes either suitable for active trading strategies where timing matters.
Can Marketlog or Portfolio123 connect to my broker?
Both platforms offer broker integrations, so you can sync your portfolio for seamless tracking and analysis.
Is Marketlog or Portfolio123 better for day trading?
Marketlog is built with active traders in mind, offering features like real-time data and technical analysis. Portfolio123 is better suited for buy-and-hold investors focused on fundamentals.
Which has a better stock screener—Marketlog or Portfolio123?
Portfolio123 includes a stock screener for finding investment ideas. Marketlog focuses on other analytical tools.
Can I track my portfolio with Marketlog or Portfolio123?
Both platforms include portfolio tracking, so you can monitor your holdings, performance, and allocation in one place.
Other tools you might like
These profiles share overlapping coverage with both sides of this matchup.
Keep Exploring
Global rankings of the highest-rated tools across all categories.
Ranked list of companies with durable competitive advantages.
Proven models entering their growth phase with solid economics.
Track votes, sentiment, and engagement across the community.
Learn moat types, red flags, and real-company examples.
Browse other head-to-head tool comparisons and alternatives.
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.