VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
Prospero.ai vs The Ledger Terminal
Pick Prospero.ai if
Prospero.ai
Free • Paid plans available · Mobile
- Delayed quotes won't cut it; you need real-time data
- You do a lot of your research from your phone
- You want ETF screeners, options, and market sentiment.
Pick The Ledger Terminal if
The Ledger Terminal
Free • From $100.80/yr · Web
- You want stock comparison, news, and financials.
- You've outgrown the basics and want pro-level depth
- You're a long-term investor who cares more about fundamentals than headlines
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
Prospero.ai and The Ledger Terminal cover a lot of the same ground (8 shared categories, including stock ideas, screeners, and data visualizations), so for the basics you won't go far wrong with either. The Ledger Terminal simply does more: 17 categories to Prospero.ai's 13, including stock comparison, news, and financials. Prospero.ai counters by being completely free.
What readers say
Prospero.ai
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The Ledger Terminal
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Key differences at a glance
- Real-time data
- Prospero.ai
- Free trial
- The Ledger Terminal7 days
- Broader coverage
- The Ledger Terminal17 vs 13 categories
- Mobile app
- Prospero.ai
- Global coverage
- The Ledger Terminal
- Asset coverage
- Prospero.aiAdds ETFs
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 • Paid plans available | Free • From $100.80/yr |
Free tier | Yes | Yes |
Free trial | — | 7 days |
Plan limits | — | 9 limits: Free: anonymous daily stock views: 1, Free: authenticated daily stock views: 6 +7 more |
| Platforms & access | ||
Web app | No | Yes |
Mobile app | Yes | No |
API access | No | No |
Broker sync | No | No |
Integrations | — | SEC EDGAR source links and Third-party financial data |
| Audience & fit | ||
Experience level | Beginner, Intermediate | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +7 more |
Categories covered | 13 | 17 |
Regions | North America | North America, Europe |
| Data & capabilities | ||
Data quality | Latency: Real-time and End of Day and Granularity: Minute and EOD | 3 signals: Latency: End of Day, Granularity: EOD +1 more |
Data partners | — | 3 partners: SEC EDGAR, Third-party financial data +1 more |
Capabilities | — | Universe builder and Factors: Value, Quality, Growth, and Size |
Security | — | Data residency: EU and Other and Encryption in transit |
| Try it | Visit Prospero.ai | Visit The Ledger Terminal |
Where each one shines
What Prospero.ai and The Ledger Terminal each do best.ShowHide
Where each one shines
What Prospero.ai and The Ledger Terminal each do best.What Prospero.ai does best
- Five short-term scores cover options, social sentiment, dark pools, short pressure, and institutional flow.
- Five longer-horizon scores cover profitability, growth, upside breakout, downside breakout, and similarity to the S&P 500.
- Daily Screener and Our Picks pages identify candidates across short and long horizons.
- Watchlists and in-app notifications are available in the iOS and Android apps.
- Signal guides explain the input, score range, update interval, and stated limitations for each metric.
What The Ledger Terminal does best
- Direct access to one-page stock tearsheets that combine business description, historical financials, valuation visuals, quality checks, SEC filing links, and relevant news.
- More than 10,000 US stocks, plus UK companies sourced from ESEF filings.
- Review SEC EDGAR-derived financial-statement history with source filing links, automated QA checks, annual and quarterly data, and trailing twelve months where available.
- Log-scale valuation charts to compare price against fair value views such as P/E, P/FCF, P/CF, and P/OE owner earnings.
- Support for applying a 9-point quality checklist covering profitability, growth, capital efficiency, shareholder returns, fair value, and balance-sheet health.
Every detail we compared
Every tracked attribute for Prospero.ai and The Ledger Terminal, side by side.ShowHide
Every detail we compared
Every tracked attribute for Prospero.ai and The Ledger Terminal, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | Stocks |
Experience | BeginnerIntermediate | BeginnerIntermediateAdvanced |
Target audience | Not specified | Retail TradersPro RetailLong-term InvestorsValue InvestorsQuality InvestorsGrowth InvestorsDividend InvestorsAnalysts+1 more |
Regions | North America | North AmericaEurope |
Coverage details | Countries: USExchanges: XNYS and XNASIdentifiers: Ticker | Countries: US and GBIdentifiers: Ticker |
| Data | ||
Data freshness | Real-timeEnd of Day | End of Day |
Data granularity | MinuteEOD | EOD |
Pricing sources | Not specified | VendorModel |
Data partners | Not specified | SEC EDGARThird-party financial dataFinancial outlets and wire services |
| Access & integrations | ||
Import methods | Manual | Manual |
Integrations | Not specified | SEC EDGAR source linksThird-party financial data |
Export formats | Not specified | Excel |
| Plans & trust | ||
Security & compliance | Not specified | Data residency: EU and OtherEncryption in transit |
Capability signals | Not specified | Universe builderFactors: Value, Quality, Growth, and Size |
Vendor & support | Prospero.ai LLCCountry: USSupport: Email | The Ledger TerminalCountry: PortugalSupport: 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 | Freeanonymous daily stock views: 1 · authenticated daily stock views: 6 · +2 more |
| Entry paid plan | Subscription“Paid tiers” | $100.80/yr≈ $8.40/mo“Pro (Annual)”public starting price monthly usd: 12 · introductory first year usd: 100.8 · +3 more |
| Free trial | — | 7 days |
Questions we keep getting
What's the difference between Prospero.ai and The Ledger Terminal?
Prospero.ai leans toward stock ideas, screeners, and ETF screeners, while The Ledger Terminal puts more weight on stock ideas, screeners, and stock comparison. They overlap in 8 categories, so for most people it comes down to workflow preference and price.
How much do Prospero.ai and The Ledger Terminal cost?
Good news: both Prospero.ai and The Ledger Terminal have free plans, so you can run them side by side and only pay if you hit a wall.
Which is better for beginners: Prospero.ai or The Ledger Terminal?
Honestly, neither is aimed at beginners. Expect a learning curve either way; that's the trade-off for the depth they offer.
Can I use Prospero.ai or The Ledger Terminal on my phone?
Prospero.ai lists a dedicated mobile app, so it travels better. The Ledger Terminal doesn't list a dedicated mobile app; its documented access is web.
Should I choose Prospero.ai or The Ledger Terminal?
It depends on what you're after. Pick Prospero.ai if ETF screeners and options matter to you; go with The Ledger Terminal if you'd rather have stock comparison and news. And if you only need the basics both share, let price decide.
What asset classes do Prospero.ai and The Ledger Terminal cover?
Both cover stocks. Prospero.ai also handles ETFs.
Does Prospero.ai or The Ledger Terminal have real-time data?
Prospero.ai offers real-time data, which matters if you trade actively. The Ledger Terminal 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: Prospero.ai or The Ledger Terminal?
The Ledger Terminal has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. Prospero.ai is more region-specific, mainly North America.
Can I export data from Prospero.ai and The Ledger Terminal?
The Ledger Terminal exports to Excel. Prospero.ai is stingier about getting data out.
Which has a better stock screener: Prospero.ai or The Ledger Terminal?
Both Prospero.ai and The Ledger Terminal include stock screeners, and they differ more in interface than raw power; try both and see which one clicks for you.
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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.