MesoSim vs Unusual Whales comparison

MesoSim focuses on Backtesting, Options & Derivatives, and Data Visualizations while Unusual Whales specializes in Options & Derivatives, Money Flow, and Screeners. They overlap in 2 categories, so choose based on your preferred workflow and pricing.

Good news—both MesoSim and Unusual Whales offer free plans. You can try each platform without commitment and only pay when you need premium features.

Unusual Whales has a mobile app so you can check your research on the go. MesoSim is web-only, so you'll need a browser to access it from mobile devices.

Yes, both platforms offer API access for developers and quants who want to build custom integrations or automate their workflows.

Choose MesoSim if you need Advanced options strategy backtesting service built around a low-code workflow., and Strategy Definition schema supports multi-leg structures plus entry/exit/adjustments and simulator controls (fill model, commissions/slippage, margin, position monitoring).. Go with Unusual Whales if Options flow tool: tracks options trades (docs: “every options trade placed across the entire US stock exchange”) and displays trade details across options exchanges; includes filters, configurable columns, sorting, and saved trades., and Multi-leg tagging in the flow feed; multileg icon can open a pop-up that preloads the Options Profit Calculator with a P/L profile for the trade. better fits how you invest.

Both cover Options, and Cryptos. Unusual Whales adds coverage for Stocks, and ETFs.

Unusual Whales offers real-time data feeds, which is essential for active traders. MesoSim uses delayed or end-of-day data, which works fine for longer-term investors who don't need up-to-the-second quotes.

Unusual Whales includes a stock screener for finding investment ideas. MesoSim focuses on other analytical tools.