BEST INVESTING TOOLS COMPARISON

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Checked September 24, 2026

Tool Comparison

Marketlog vs Testfol.io

Paid from
$6.67/mo
Free plan
Yes
Platforms
Web, Mobile

Best if

  • You want the cheaper way in: plans start at $6.67/mo instead of $15/mo
  • Delayed quotes won't cut it; you need real-time data
  • You do a lot of your research from your phone
Paid from
$15/mo
Free plan
Yes
Platforms
Web

Best if

  • You want backtesting, correlation, and quant.

Pick Marketlog if

Marketlog logo

Marketlog

marketlog.com

Free • From $79.99/yr · Web · Mobile

  • You want the cheaper way in: plans start at $6.67/mo instead of $15/mo
  • Delayed quotes won't cut it; you need real-time data
  • You do a lot of your research from your phone

Pick Testfol.io if

Testfol.io logo

Testfol.io

testfol.io

Free • From $15/mo · Web

  • You want backtesting, correlation, and quant.

Skip both if: Neither one clicks with how you research; there are strong third options.

See alternatives

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Not set on either one? See the top 50 tools, ranked by user votes, or the deals page for big discounts on popular tools.

Our take

The bottom line

Marketlog and Testfol.io cover a lot of the same ground (2 shared categories, risk metrics and compounding calculator), so for the basics you won't go far wrong with either. Marketlog simply does more: 18 categories to Testfol.io's 5, including portfolio, watchlist, and institutional ownership, plus a mobile app. Testfol.io counters by keeping things simpler.

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Key differences at a glance

Cheaper paid plan
Marketlog$6.67/mo vs $15/mo
Broader coverage
Marketlog18 vs 5 categories
Mobile app
Marketlog
Real-time data
Marketlog
Beginner friendly
Marketlog
Free plan
Both
See the full side-by-side table
Marketlog logo

What Marketlog does best

  1. Portfolio tracking for stocks, ETFs, options, bonds, funds, forex, crypto, indices, and other assets on web, iOS, and Android.
  2. Enter transactions manually or connect supported brokerage and bank accounts through Marketlog's data provider.
  3. Broker and bank connectivity for 2,000+ supported institutions, with examples such as Fidelity, E*TRADE, Vanguard, Schwab, Interactive Brokers, and Robinhood.
  4. Monitor gains, drawdowns, returns, diversification, goals, target allocation, benchmarking, and daily or weekly portfolio email updates.
  5. Automatic dividend tracking, dividend calendars, upcoming payment alerts, and yield notifications.
Testfol.io logo

What Testfol.io does best

  1. Tools for building multi-asset portfolio backtests using ETFs, mutual funds, stocks, cashflow legs, and rebalancing controls such as rebalance bands.
  2. Review performance and risk statistics such as cumulative return, CAGR, money-weighted return, max drawdown, volatility, Sharpe, Sortino, and beta.
  3. Asset Analyzer for historical performance analysis and daily-return correlations.
  4. Testing tools for tactical allocation rules that swap between allocations using documented indicators, trading frequency, offsets, cashflows, benchmarks, and current-status views.
  5. Portfolio Optimizer searches for asset allocation and use choices based on user-provided inputs.

Side by side

Pricing & plans
Starting price
Free • From $79.99/yr
Free • From $15/mo
Free tier
Yes
Yes
Free trial
7 days
7 days
Platforms & access
Web app
Yes
Yes
Mobile app
Yes
No
API access
No
No
Broker sync
Yes
—
Integrations
Yodlee, Fidelity Investments +5 more
—
Coverage & data
Asset types
StocksETFsOptionsBondsFundsCurrenciesCryptosOther
StocksETFsMutual Funds
Target audience
Retail TradersPro RetailLong-term InvestorsDividend InvestorsDay TradersSwing Traders
Retail TradersPro RetailLong-term InvestorsQuants/Developers
Data freshness
Real-timeEnd of Day
End of Day
Data granularity
MinuteEOD
EOD
Export formats
Image
CSV

Pricing comparison

Tier
MarketlogCheaper start
Free plan
Free
Free“Free (Anonymous)”
Entry paid plan
$79.99/yr≈ $6.67/mo“Plus Annual”
$15/mo“Pro”
Tier 2
$7.99/mo“Plus Monthly”
$30/mo“Pro+”
Tier 3
$179.99/yr≈ $15/mo“Pro Annual”
$960/yr≈ $80/mo“Max”
Top plan
$17.99/mo“Pro Monthly”
—
Free trial
7 days
7 days

See for yourself

Side by side

Price, platforms, data, and market coverage.
Show
Side-by-side comparison of Marketlog and Testfol.io
Attribute
Marketlog logo
Marketlog
Testfol.io logo
Testfol.io
Pricing & plans
Starting price
Free • From $79.99/yrFree • From $15/mo
Free tier
YesYes
Free trial
7 days7 days
Plan limits
21 limits: Free: portfolios: Unlimited, Free: holdings: Unlimited +19 more10 limits: Free (Anonymous): note: Some tools (e.g., Signal Analyzer) require sign-in., Pro: annual price usd: 150 +8 more
Platforms & access
Web app
YesYes
Mobile app
YesNo
API access
NoNo
Broker sync
Yes—
Integrations
Yodlee, Fidelity Investments +5 more—
Audience & fit
Experience level
Beginner, Intermediate, AdvancedIntermediate, Advanced
Best for
Retail Traders, Pro Retail +4 moreRetail Traders, Pro Retail +2 more
Categories covered
185
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 moreLatency: End of Day and Granularity: EOD
Data partners
Yodlee and Third-party data licensorsFRED
Capabilities
3 signals: Monte Carlo, Broker sync +1 moreRebalancing and Correlation
Security
Encryption at rest and Encryption in transit—
Try itVisit MarketlogVisit Testfol.io

Standout features

The best features of Marketlog and Testfol.io.
Show
Marketlog logo

What Marketlog does best

  1. Portfolio tracking for stocks, ETFs, options, bonds, funds, forex, crypto, indices, and other assets on web, iOS, and Android.
  2. Enter transactions manually or connect supported brokerage and bank accounts through Marketlog's data provider.
  3. Broker and bank connectivity for 2,000+ supported institutions, with examples such as Fidelity, E*TRADE, Vanguard, Schwab, Interactive Brokers, and Robinhood.
  4. Monitor gains, drawdowns, returns, diversification, goals, target allocation, benchmarking, and daily or weekly portfolio email updates.
  5. Automatic dividend tracking, dividend calendars, upcoming payment alerts, and yield notifications.
Testfol.io logo

What Testfol.io does best

  1. Tools for building multi-asset portfolio backtests using ETFs, mutual funds, stocks, cashflow legs, and rebalancing controls such as rebalance bands.
  2. Review performance and risk statistics such as cumulative return, CAGR, money-weighted return, max drawdown, volatility, Sharpe, Sortino, and beta.
  3. Asset Analyzer for historical performance analysis and daily-return correlations.
  4. Testing tools for tactical allocation rules that swap between allocations using documented indicators, trading frequency, offsets, cashflows, benchmarks, and current-status views.
  5. Portfolio Optimizer searches for asset allocation and use choices based on user-provided inputs.

All details

Every attribute we track for Marketlog and Testfol.io.
Show
Attribute
Marketlog logo
Marketlog
Testfol.io logo
Testfol.io
Coverage & fit
Asset types
StocksETFsOptionsBondsFundsCurrenciesCryptosOther
StocksETFsMutual Funds
Experience
BeginnerIntermediateAdvanced
IntermediateAdvanced
Target audience
Retail TradersPro RetailLong-term InvestorsDividend InvestorsDay TradersSwing Traders
Retail TradersPro RetailLong-term InvestorsQuants/Developers
Regions
North AmericaEuropeAPACLatAmMiddle EastAfrica
Not specified
Coverage details
26 countriesIdentifiers: Ticker and CUSIP
Identifiers: Ticker
Data
Data freshness
Real-timeEnd of Day
End of Day
Data granularity
MinuteEOD
EOD
Pricing sources
VendorManual
Not specified
Data partners
YodleeThird-party data licensors
FRED
Access & integrations
Import methods
BrokerOAuthManual
Not specified
Integrations
YodleeFidelity InvestmentsE*TRADE from Morgan StanleyVanguardSchwabInteractive BrokersRobinhood
Not specified
Export formats
Image
CSV
Plans & trust
Security & compliance
Encryption at restEncryption in transit
Not specified
Capability signals
Monte CarloBroker syncMulti-currency
RebalancingCorrelation
Vendor & support
Myfxbook Ltd.Country: IsraelSupport: Email
Support: Email

Green tags are exclusive to that tool in this comparison.

Pricing

Plans, billing, free trials, and monthly prices.
Show
Plan-by-plan pricing comparison of Marketlog and Testfol.io
Tier
Marketlog logo
MarketlogCheaper start
Testfol.io logo
Testfol.io
Free plan
Freeportfolios: Unlimited · holdings: Unlimited · +5 more
Free“Free (Anonymous)”note: Some tools (e.g., Signal Analyzer) require sign-in.
Entry paid plan
$79.99/yr≈ $6.67/mo“Plus Annual”portfolios: Unlimited · holdings: Unlimited · +2 more
$15/mo“Pro”annual price usd: 150 · annual monthly equivalent usd: 12.5 · +1 more
Tier 2
$7.99/mo“Plus Monthly”portfolios: Unlimited · holdings: Unlimited · +2 more
$30/mo“Pro+”annual price usd: 300 · annual monthly equivalent usd: 25 · +3 more
Tier 3
$179.99/yr≈ $15/mo“Pro Annual”portfolios: Unlimited · holdings: Unlimited · +1 more
$960/yr≈ $80/mo“Max”billed: Annually
Top plan
$17.99/mo“Pro Monthly”portfolios: Unlimited · holdings: Unlimited · +1 more
—
Free trial7 days7 days

Questions we keep getting

What's the difference between Marketlog and Testfol.io?

Marketlog leans toward portfolio, watchlist, and institutional ownership, while Testfol.io puts more weight on backtesting, correlation, and risk metrics. They overlap in 2 categories, so for most people it comes down to workflow preference and price.

How much do Marketlog and Testfol.io cost?

Good news: both Marketlog and Testfol.io have free plans, so you can run them side by side and only pay if you hit a wall.

Which is better for beginners: Marketlog or Testfol.io?

Marketlog is the friendlier place to start; its interface takes less getting used to. Both work fine once you're past the basics.

Can I use Marketlog or Testfol.io on my phone?

Marketlog lists a dedicated mobile app, so it travels better. Testfol.io doesn't list a dedicated mobile app; its documented access is web.

Should I choose Marketlog or Testfol.io?

It depends on what you're after. Pick Marketlog if portfolio and watchlist matter to you; go with Testfol.io if you'd rather have backtesting and correlation. And if you only need the basics both share, let price decide.

What asset classes do Marketlog and Testfol.io cover?

Both cover stocks and ETFs. Marketlog also handles options, bonds, and funds. Testfol.io adds mutual funds on top.

Does Marketlog or Testfol.io have real-time data?

Marketlog offers real-time data, which matters if you trade actively. Testfol.io 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 I export data from Marketlog and Testfol.io?

Testfol.io exports to CSV. Marketlog is stingier about getting data out.

Is Marketlog or Testfol.io better for day trading?

Marketlog is the one positioned more for active traders. Testfol.io is the better fit if you care less about fast trading workflows and more about a calmer research process.

Can I track my portfolio with Marketlog or Testfol.io?

Marketlog handles portfolio tracking. Testfol.io is really a research tool; you'd track your portfolio elsewhere.

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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.