Mobile marketing is marketing conducted via mobile devices such as smartphones. It has grown significantly with the rise in mobile internet usage surpassing desktop usage. Marketers now focus on mobile advertising, apps, and social media. Common mobile marketing tactics include SMS marketing, app-based ads, mobile gaming ads, and QR codes. Mobile marketing provides personalized, timely promotions and has seen strong success with brands like Coca-Cola and Turkish Airlines. Its effectiveness is driven by convenience and mass reach, though privacy and engagement issues remain a challenge.