Kayla Itsines

Kayla Itsines is an Australian personal trainer, bestselling author, and entrepreneur of Greek heritage, best known as the creator of the global fitness phenomenon “Bikini Body Guides” and co-founder of the Sweat app. Her structured, results-driven training programs and strong social media presence helped redefine digital fitness for women worldwide.

Launched as “Sweat with Kayla,” the Sweat app quickly became one of the most successful fitness platforms in the world, generating more revenue than any other fitness app in 2016. Itsines’ ability to build a highly engaged global community positioned her as a pioneer in influencer-led wellness brands.

In 2016, Time named Itsines one of the “30 Most Influential People on the Internet,” recognizing her exceptional success in leveraging social media to grow her brand and inspire millions. That same year, she amassed millions of followers across Facebook and Instagram, with extraordinary engagement levels that set new standards in the industry.

Also in 2016, Itsines and her business partner, Tobi Pearce, were named to the BRW “Young Rich” list of Australia’s wealthiest self-made individuals under 40, with a reported fortune of $46 million. She later appeared on the Australian Financial Review Rich List, becoming one of the few entrepreneurs of Greek heritage to earn that distinction.

Today, Kayla Itsines remains a leading voice in digital fitness, recognized globally for transforming personal training into a scalable, community-driven online movement.