Hyper-growth stocks can be fun and exciting. They can also be short-lived moths in Wall Street's winds. The best growth investors maintain a long investment horizon, looking for companies that combine stellar growth with long-term durability.

On that note, let me introduce you to a couple of my favorite high-octane growth stocks. Restaurant management software and language-learning apps may not sound like thrilling business ventures, but Toast (NYSE: TOST) and Duolingo (NASDAQ: DUOL) might just change your mind about that.

It's not easy to manage a restaurant, a small chain of cafés, or a couple of drive-through fast-food spots. The business owner can end up with a point-of-sale system from Block, inventory tracking by 's food and beverage segment, and a marketing campaign based on spreadsheets and hand-scribbled sticky notes.

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Source Fool.com