VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View FlightAwareView Portfolio123Back to Home

Head-to-head

FlightAware vs Portfolio123 comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

FlightAware adds Alerts, and Satellite / Geospatial coverage that Portfolio123 skips.

Portfolio123 includes Screeners, Quant, Backtesting, Portfolio, Correlation, Calendar, and Broker Connectors categories that FlightAware omits.

FlightAware highlights: Live flight tracking and flight-status pages with dedicated views for cancellations and delays, plus the signature MiseryMap® for U.S. air traffic disruptions., Premium subscriptions unlock unlimited flight alerts and access to three, five, or eight months of historical flight data., and AeroAPI (v4) provides RESTful access to current and historical flight data with JSON responses and API key authentication..

Portfolio123 is known for: Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry., Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data., and Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging..

FlightAware ships a mobile app. Portfolio123 is web/desktop only.

FlightAware logo

FlightAware

flightaware.com

A global flight-tracking platform offering free web and mobile access to live flight data. Premium subscriptions add unlimited alerts and extended historical lookback. Enterprise offerings include AeroAPI (REST), Firehose (streaming), and Rapid Reports (one-off email deliveries).

Platforms

Web
Mobile
API

Pricing

Free
Subscription
One-time

Quick highlights

  • Live flight tracking and flight-status pages with dedicated views for cancellations and delays, plus the signature MiseryMap® for U.S. air traffic disruptions.
  • Premium subscriptions unlock unlimited flight alerts and access to three, five, or eight months of historical flight data.
  • AeroAPI (v4) provides RESTful access to current and historical flight data with JSON responses and API key authentication.
  • FlightAware Firehose delivers a continuous enterprise-grade feed of real-time, historical, and predictive flight data over secure TCP/SSL connections.
  • Global coverage powered by fused data sources: national air navigation providers, ACARS messages, over 30,000 terrestrial ADS-B receivers, Aireon space-based ADS-B with ~1-minute updates, and FlightAware’s HyperFeed® ML engine processing tens of thousands of position messages per second.

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Portfolio123 logo

Portfolio123

portfolio123.com

Editor’s pick Hands-on review

Quant research and live-deployment platform with point-in-time fundamentals and estimates. Users can screen, backtest, and simulate strategies, then deploy them live with broker integrations. Supports API access and a no-code desktop DataMiner. FactSet or S&P Compustat licenses are required for full historical fundamentals.

Platforms

Web
Desktop
API

Pricing

Free
Subscription

Quick highlights

  • Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry.
  • Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data.
  • Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging.
  • ‘Books’ feature to combine multiple strategies and view correlations between them.
  • Point-in-time fundamentals, estimates, and corporate actions with dividends handled on ex/pay dates (no survivorship bias or look-ahead).

Community votes (overall)

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Overlap

Shared focus areas

3 overlaps

Mutual strengths include Data APIs, APIs & SDKs, and Data Visualizations.

Where they differ

FlightAware

Distinct strengths include:

Alerts
Satellite / Geospatial
  • Live flight tracking and flight-status pages with dedicated views for cancellations and delays, plus the signature MiseryMap® for U.S. air traffic disruptions.
  • Premium subscriptions unlock unlimited flight alerts and access to three, five, or eight months of historical flight data.
  • AeroAPI (v4) provides RESTful access to current and historical flight data with JSON responses and API key authentication.
  • FlightAware Firehose delivers a continuous enterprise-grade feed of real-time, historical, and predictive flight data over secure TCP/SSL connections.

Portfolio123

Distinct strengths include:

Screeners
Quant
Backtesting
Portfolio
Correlation
Calendar
Broker Connectors
  • Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry.
  • Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data.
  • Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging.
  • ‘Books’ feature to combine multiple strategies and view correlations between them.

Feature-by-feature breakdown

AttributeFlightAwarePortfolio123
Categories

Which research workflows each platform targets

Shared: Data APIs, APIs & SDKs, Data Visualizations

Unique: Alerts, Satellite / Geospatial

Shared: Data APIs, APIs & SDKs, Data Visualizations

Unique: Screeners, Quant, Backtesting, Portfolio, Correlation, Calendar, Broker Connectors

Asset types

Supported asset classes and universes

Other

Stocks, ETFs

Experience levels

Who each product is built for

Beginner, Intermediate, Advanced

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Web, Mobile, API

Web, Desktop, API

Pricing

High-level pricing models

Free, Subscription, One-time

Free, Subscription

Key features

Core capabilities called out by each vendor

Unique

  • Live flight tracking and flight-status pages with dedicated views for cancellations and delays, plus the signature MiseryMap® for U.S. air traffic disruptions.
  • Premium subscriptions unlock unlimited flight alerts and access to three, five, or eight months of historical flight data.
  • AeroAPI (v4) provides RESTful access to current and historical flight data with JSON responses and API key authentication.
  • FlightAware Firehose delivers a continuous enterprise-grade feed of real-time, historical, and predictive flight data over secure TCP/SSL connections.
  • Global coverage powered by fused data sources: national air navigation providers, ACARS messages, over 30,000 terrestrial ADS-B receivers, Aireon space-based ADS-B with ~1-minute updates, and FlightAware’s HyperFeed® ML engine processing tens of thousands of position messages per second.
  • Rapid Reports offer one-time purchases of airport or aircraft history, delivered via email within about an hour.

Unique

  • Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry.
  • Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data.
  • Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging.
  • ‘Books’ feature to combine multiple strategies and view correlations between them.
  • Point-in-time fundamentals, estimates, and corporate actions with dividends handled on ex/pay dates (no survivorship bias or look-ahead).
  • Coverage of 15,000+ equities in the U.S., Canada, and Europe, including delisted stocks and spinoffs.
Tested

Verified by hands-on testing inside Find My Moat

Not yet

Yes

Editor pick

Featured inside curated shortlists

Standard listing

Highlighted

Frequently Asked Questions

Which workflows do FlightAware and Portfolio123 both support?

Both platforms cover Data APIs, APIs & SDKs, and Data Visualizations workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do FlightAware and Portfolio123 require subscriptions?

Both FlightAware and Portfolio123 keep freemium access with optional paid upgrades, so you can trial each platform before committing.

Which tool has mobile access?

FlightAware ships a dedicated mobile experience, while Portfolio123 focuses on web or desktop access.

What unique strengths set the two platforms apart?

FlightAware differentiates itself with Live flight tracking and flight-status pages with dedicated views for cancellations and delays, plus the signature MiseryMap® for U.S. air traffic disruptions., Premium subscriptions unlock unlimited flight alerts and access to three, five, or eight months of historical flight data., and AeroAPI (v4) provides RESTful access to current and historical flight data with JSON responses and API key authentication., whereas Portfolio123 stands out for Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry., Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data., and Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging..

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

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.