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uSMART Trade vs Straight Flush: catalog facts
uSMART Trade	Straight Flush
Best for: Retail investors trading US, Hong Kong and Singapore stocks through uSMART	Best for: Investors trading Chinese and Hong Kong stocks from a Mac
Free The app is free; trading fees apply per uSMART's pricing, with no deposit minimum.	Free The Mac edition is listed among the developer's free downloads.
macOS, Android	macOS
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	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
Requires a uSMART brokerage account Only useful with this one broker	Interface and website are in Chinese only Focused on Chinese markets
Downloadable app	Downloadable app
Not open source	Not open source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Sources for uSMART Trade usmartglobal.com Catalog checked October 2, 2026	Official website Full listing and sources Sources for Straight Flush download.10jqka.com.cn/free/mac Catalog checked October 2, 2026

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