★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Source check: USAspending checked August 4, 2026
Tool Comparison
Portfolio123 vs USAspending
Start here
Portfolio123
Free • From $25/mo · Web · API · Desktop
- Delayed quotes won't cut it; you need real-time data
- You care about screeners, quant, and stock ideas, things USAspending doesn't offer
Pick USAspending instead if
USAspending
Free · Web · API
- You care about other and official sources, things Portfolio123 doesn't offer
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
Portfolio123 and USAspending cover a lot of the same ground (3 shared categories, data visualizations, APIs & data feeds, and videos), so for the basics you won't go far wrong with either. Portfolio123 simply does more: 19 categories to USAspending's 5, including screeners, quant, and stock ideas. USAspending counters by being completely free.
What readers say
Portfolio123
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USAspending
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Key differences at a glance
- Real-time data
- Portfolio123
- Broader coverage
- Portfolio12319 vs 5 categories
- Desktop app
- Portfolio123
- Global coverage
- Portfolio123
- Free plan
- Both
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 $25/mo | Free |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | Free Screener & Backtesting Access: duration days: 30 | — |
| Platforms & access | ||
Web app | Yes | Yes |
Desktop app | Yes | No |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | Yes | — |
Integrations | Interactive Brokers and Tradier | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +5 more | — |
Categories covered | 19 | 5 |
Regions | North America, Europe | North America |
| Data & capabilities | ||
Data quality | 5 signals: Latency: Real-time and End of Day, Granularity: EOD +3 more | Latency: End of Day and Granularity: EOD |
Data partners | 4 partners: FactSet, S&P Global Market Intelligence +2 more | — |
Capabilities | 6 signals: Custom formulas, Ranking backtests +4 more | — |
Security | — | Data residency: US |
| Try it | Visit Portfolio123 | Visit USAspending |
Where each one shines
What Portfolio123 and USAspending each do best.ShowHide
Where each one shines
What Portfolio123 and USAspending each do best.What Portfolio123 does best
- Tools for building multifactor ranking systems, stock screens, ETF screens, and complete rules-based strategies through a web research environment.
- Tools for running simulations and backtests with long historical equity data, custom universes, buy and sell rules, position sizing, hedging, rebalancing, and realistic assumptions.
- Point-in-time data designed to avoid survivorship and look-ahead bias, with fundamentals, estimates, corporate actions, sector and industry classifications, and historical issues.
- Tools for creating ranking systems from fundamental, technical, sentiment, and macro factors, including public factor documentation and FRED-linked economic series.
- AI Factor to train machine-learning predictors for expected returns and feed those predictions into rankings, simulations, and asset-level analysis.
What USAspending does best
- Search tools across federal awards, recipients, agencies, federal accounts, contracts, grants, loans, direct payments, insurance, and other assistance records.
- Advanced Search filters such as award type, date, place of performance, NAICS, PSC, Assistance Listing, agency, recipient, and disaster-emergency funding codes.
- Tools for exploring top-down spending through Spending Explorer, agency profiles, and federal-account profiles before drilling into awards and recipients.
- The public REST API V2 with JSON responses for award and account workflows; current endpoint docs say authorization is not required.
- Download support for data through award archives, custom award downloads, custom account downloads, Advanced Search exports, award profile downloads, and the full database download.
Every detail we compared
Every tracked attribute for Portfolio123 and USAspending, side by side.ShowHide
Every detail we compared
Every tracked attribute for Portfolio123 and USAspending, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsClosed-End Funds | Other |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailInstitutional InvestorsAnalystsQuants/DevelopersFinancial AdvisorsStudents/Researchers | Not specified |
Regions | North AmericaEurope | North America |
Coverage details | Countries: US and CAIdentifiers: Ticker | Countries: US |
| Data | ||
Data freshness | Real-timeEnd of Day | End of Day |
Data granularity | EOD | EOD |
Data partners | FactSetS&P Global Market IntelligenceICE Data ServicesFRED | Not specified |
| Access & integrations | ||
API protocols | REST | REST |
API auth & delivery | Auth: APIKeySDKs: PythonDocs | Auth: None |
Import methods | BrokerOAuthCSV | Not specified |
Integrations | Interactive BrokersTradier | Not specified |
Export formats | CSVJSON | CSVJSON |
| Plans & trust | ||
Security & compliance | Not specified | Data residency: US |
Capability signals | Custom formulasRanking backtestsUniverse builderBroker syncRebalancingCorrelation | Not specified |
Vendor & support | Portfolio123Support: Forum | U.S. Department of the Treasury – Bureau of the Fiscal ServiceCountry: USSupport: Email |
Curation ratings | Not specified | Methodology 5/5Reliability 5/5UX 4/5 |
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“Manage (Free)” | Free |
| Entry paid plan | $25/mo“Retail Research Plans” | — |
| Custom / enterprise | Contact sales“Professional / API & Data Licenses” | — |
Questions we keep getting
What's the difference between Portfolio123 and USAspending?
Portfolio123 leans toward screeners, data visualizations, and quant, while USAspending puts more weight on APIs & data feeds, data visualizations, and videos. They overlap in 3 categories, so for most people it comes down to workflow preference and price.
How much do Portfolio123 and USAspending cost?
Good news: both Portfolio123 and USAspending have free plans, so you can run them side by side and only pay if you hit a wall.
Do Portfolio123 and USAspending have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose Portfolio123 or USAspending?
It depends on what you're after. Pick Portfolio123 if screeners and quant matter to you; go with USAspending if you'd rather have other and official sources. And if you only need the basics both share, let price decide.
What asset classes do Portfolio123 and USAspending cover?
Portfolio123 covers stocks, ETFs, and closed-end funds. USAspending covers other.
Does Portfolio123 or USAspending have real-time data?
Portfolio123 offers real-time data, which matters if you trade actively. USAspending 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: Portfolio123 or USAspending?
Portfolio123 has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. USAspending is more region-specific, mainly North America.
Can I export data from Portfolio123 and USAspending?
Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.
Which has a better stock screener: Portfolio123 or USAspending?
Portfolio123 has a stock screener for surfacing ideas; USAspending doesn't, and focuses its energy elsewhere.
Can I track my portfolio with Portfolio123 or USAspending?
Portfolio123 handles portfolio tracking. USAspending is really a research tool; you'd track your portfolio elsewhere.
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.