"Sometimes I think about what I would say to 18-year-old me if I could go back in time, standing in my parents' backyard with a whiteboard, training my clients with absolutely no idea where this journey would take me," shares Kayla.

The Beginning

At 18, Kayla graduated as a master trainer from the Australian Institute of Fitness. She was training women in their backyards, at the beach, at a women's only personal training centre, going to people's houses - doing everything she could for women in Adelaide, South Australia.

Instagram Changed Everything

"And then I downloaded Instagram." When Kayla first joined Instagram, there were no Reels, no Stories, and no fitness influencers. "I was just a personal trainer, online, sharing my life and my clients' transformation photos and... it just took off."

The PDF That Went Viral

People were asking for her workouts, so she wrote them down and made a PDF - exactly how she was training her clients. A 12-week program with three workouts a week, 28 minutes each. The BBG (Bikini Body Guide) went viral, with millions of women downloading it worldwide.

Building Sweat

In 2015, the Sweat with Kayla app launched. Today it's home to 60+ unique programs created by female personal trainers, 13,000+ workouts, and hundreds of recipes.

The Exit

In 2021, Sweat was acquired by iFIT Health & Fitness for $400 million AUD - one of the largest fitness app acquisitions ever.

• Started: Age 18, parents' backyard
• PDF launch: 2014
• App launch: 2015
• Instagram followers: 13M+
• App acquisition: $400M AUD