★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
QuantRocket vs Reflexivity
Pick QuantRocket if
QuantRocket
Free • Paid plans available · Web · API
- You'd rather start free and only pay if you outgrow it
- You care about auto-trading & bots, advanced order types, and paper trading, things Reflexivity doesn't offer
- You're newer to investing and want something approachable
Pick Reflexivity if
Reflexivity
Subscription · Web · API
- You care about performance attribution, scenario & stress tests, and portfolio, things QuantRocket 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
QuantRocket and Reflexivity cover a lot of the same ground (4 shared categories, including screeners, quant, and backtesting), so for the basics you won't go far wrong with either. Reflexivity simply does more: 12 categories to QuantRocket's 8, including performance attribution, scenario & stress tests, and portfolio. QuantRocket counters by being completely free.
What readers say
QuantRocket
Vote once to reveal the community verdict.
Reflexivity
Vote once to reveal the community verdict.
Key differences at a glance
- Free plan
- QuantRocket
- Broader coverage
- Reflexivity12 vs 8 categories
- Broker sync
- QuantRocket
- Beginner friendly
- QuantRocket
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 | Subscription |
Free tier | Yes | No |
Free trial | — | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | Yes | No |
Integrations | Interactive Brokers, Alpaca +4 more | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Intermediate, Advanced |
Best for | — | — |
Categories covered | 8 | 12 |
Regions | North America, Europe, APAC, LatAm, Middle East, Africa | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | 6 signals: Latency: Streaming, Real-time, and End of Day, Granularity: Tick, Minute, and EOD +4 more | Latency: Real-time and End of Day and Granularity: EOD |
Capabilities | 5 signals: Custom formulas, Universe builder +3 more | 5 signals: Universe builder, Stress tests: Rates, FX, and EquityCrash +3 more |
Security | Status page | SOC2 |
| Try it | Visit QuantRocket | Visit Reflexivity |
Where each one shines
What QuantRocket and Reflexivity each do best.ShowHide
Where each one shines
What QuantRocket and Reflexivity each do best.What QuantRocket does best
- Tools for running research and backtests in a Docker-based platform built around Jupyter, Python clients, CLI tools, and REST services.
- The free tier for research and backtesting with sample data, including a survivorship-bias-free 2007-2011 U.S. daily stock bundle and sample symbols.
- Move to Full Access for complete up-to-date datasets, paper trading, live trading, and bundled U.S. minute-bar data where licensed.
- Tools for building point-in-time screening and ranking pipelines, with Alphalens and Pyfolio support for notebook analysis.
- Connections for to Interactive Brokers for historical and real-time data across many global exchanges plus broker-connected trading workflows.
What Reflexivity does best
- AI research workflows over institutional datasets from providers such as S&P Global, LSEG Datastream, Nasdaq, Cboe, and other sources included in the platform.
- Tools for running Deep Research workflows that can analyze data, write and execute code, create research reports, and export data or visualizations.
- Search tools across filings, transcripts, presentations, central bank documents, and proprietary uploads through Document Intelligence.
- OCR on charts and tables so documents can become searchable and analyzable research inputs.
- Monitoring portfolios with real-time alerts, risk and exposure analytics, performance attribution, and daily insight generation.
Every detail we compared
Every tracked attribute for QuantRocket and Reflexivity, side by side.ShowHide
Every detail we compared
Every tracked attribute for QuantRocket and Reflexivity, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsFuturesCurrenciesOptions | StocksETFsBondsCommoditiesCurrencies |
Experience | BeginnerIntermediateAdvanced | IntermediateAdvanced |
Regions | North AmericaEuropeAPACLatAmMiddle EastAfrica | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Identifiers: Ticker | Identifiers: Ticker |
| Data | ||
Data freshness | StreamingReal-timeEnd of Day | Real-timeEnd of Day |
Data granularity | TickMinuteEOD | EOD |
| Access & integrations | ||
API protocols | RESTWebSocket | Not specified |
API auth & delivery | Auth: NoneSDKs: Python | Not specified |
Import methods | CSV | CSVManual |
Integrations | Interactive BrokersAlpacaPolygon.ioNasdaq Data LinkEDIBrain | Not specified |
Export formats | CSVJSON | Excel |
| Plans & trust | ||
Security & compliance | Status page | SOC2 |
Capability signals | Custom formulasUniverse builderMulti-leg optionsGreeksBroker sync | Universe builderStress tests: Rates, FX, and EquityCrashPortfolio attributionCitation pinningAI summaries: Filings, Transcripts, and News |
Vendor & support | QuantRocket LLCCountry: USSupport: Email and Forum | Knabble, Inc. (dba Reflexivity)Country: United StatesSupport: Email |
Curation ratings | Methodology 4/5Reliability 4/5UX 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 | — |
| Entry paid plan | Subscription“Full Access” | — |
Questions we keep getting
What's the difference between QuantRocket and Reflexivity?
QuantRocket leans toward screeners, quant, and backtesting, while Reflexivity puts more weight on screeners, quant, and performance attribution. They overlap in 4 categories, so for most people it comes down to workflow preference and price.
Is QuantRocket or Reflexivity free to use?
QuantRocket has a free tier, so you can get started without paying anything. Reflexivity is paid-only. If budget matters, start with QuantRocket and see how far it takes you before opening your wallet.
Which is better for beginners: QuantRocket or Reflexivity?
QuantRocket is the friendlier place to start; its interface takes less getting used to. Both work fine once you're past the basics.
Do QuantRocket and Reflexivity have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose QuantRocket or Reflexivity?
It depends on what you're after. Pick QuantRocket if auto-trading & bots and advanced order types matter to you; go with Reflexivity if you'd rather have performance attribution and scenario & stress tests. And if you only need the basics both share, let price decide.
What asset classes do QuantRocket and Reflexivity cover?
Both cover stocks, ETFs, and currencies. QuantRocket also handles futures and options. Reflexivity adds bonds and commodities on top.
Do QuantRocket and Reflexivity offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Can I export data from QuantRocket and Reflexivity?
Yes, both export to spreadsheets (QuantRocket: CSV; Reflexivity: Excel), which is handy if you like running your own numbers.
Can QuantRocket or Reflexivity connect to my broker?
QuantRocket syncs with brokers automatically. With Reflexivity, you're entering holdings by hand or importing files.
Which has a better stock screener: QuantRocket or Reflexivity?
Both QuantRocket and Reflexivity include stock screeners, and they differ more in interface than raw power; try both and see which one clicks for you.
Can I track my portfolio with QuantRocket or Reflexivity?
Reflexivity handles portfolio tracking. QuantRocket is really a research tool; you'd track your portfolio elsewhere.
Keep researching
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Feedback
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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.