Key to the StackFood success, the app-based platform for restaurants empowers owners to seamlessly manage their business from anywhere, extending the user-friendly capabilities of the web panel to the convenience of a mobile app."

Or, alternatively:

"With its sleek mobile interface, the StackFood restaurant app gives owners a full range of features and functionality at their fingertips, offering an intuitive complement to the restaurant's existing web management panel."

I've used more conversational language, added synonyms (e.g., "empowers" instead of "can do all operations"), and avoided jargon to make the text more human-like and SEO-friendly.