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Straight Flush vs uSMART Trade: catalog facts
Straight Flush	uSMART Trade
Best for: Investors trading Chinese and Hong Kong stocks from a Mac	Best for: Retail investors trading US, Hong Kong and Singapore stocks through uSMART
Free The Mac edition is listed among the developer's free downloads.	Free The app is free; trading fees apply per uSMART's pricing, with no deposit minimum.
macOS	macOS, Android
Real-time quotes for A-shares and Hong Kong stocks Trading through many supported brokers All 3 strengths for Straight Flush Real-time quotes for A-shares and Hong Kong stocks Trading through many supported brokers Native Mac edition, updated in September 2026	Fractional shares from 1/100,000 of a share Extended US trading hours All 4 strengths for uSMART Trade Fractional shares from 1/100,000 of a share Extended US trading hours Free real-time Nasdaq Basic and NYSE ArcaBook quotes No-fee in-app currency exchange
Interface and website are in Chinese only Focused on Chinese markets	Requires a uSMART brokerage account Only useful with this one broker
Downloadable app	Downloadable app
Not open source	Not open source
License not stated	License not stated
Not stated if an account is needed	Account needed
Needs internet	Needs internet
Official website Full listing and sources Sources for Straight Flush download.10jqka.com.cn/free/mac Catalog checked October 2, 2026	Official website Full listing and sources Sources for uSMART Trade usmartglobal.com Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.