From Backyard Bootcamps to a $400M Exit

Newsletter Images February 2nd, 2026 (1).jpg

The Idea: In 2012, Kayla Itsines was a 21-year-old personal trainer in Adelaide, Australia, training women one-on-one in her parents' backyard. She noticed something: her clients didn't want complicated gym routines - they wanted simple, effective workouts they could do anywhere. When her 12-year-old cousin suggested she use Instagram to organise her clients' before-and-after photos, Kayla had no idea what the app even was. But within months, those transformation photos went viral. Women from around the world started asking for her workouts. Her then-boyfriend Tobi Pearce suggested turning her routines into a PDF ebook. In March 2013, they founded Bikini Body Training Company with $0 in funding. This was the beginning of Sweat.

The Execution:

2014: Kayla launched her first Bikini Body Guide (BBG) PDF for $52. Within months, it had been downloaded over 1 million times, with women sharing their transformation photos using #BBG.
2015: She launched the "Bootcamp World Tour," training over 20,000 women in person across three months. The movement was becoming a cult.
2016: Sweat With Kayla app launched and became the top-grossing fitness app in the world, generating more revenue than Nike+ or MyFitnessPal. Time named Kayla one of the 30 most influential people on the internet.
2017: Kayla and Tobi hit the Australian Financial Review's Young Rich List with a combined net worth of $46 million.
2020: Sweat reached 50 million community members and was generating ~$100 million in annual revenue.
2021: Kayla and Tobi sold Sweat to iFIT for $400 million. She was 30 years old.
2023: After iFIT's IPO plans fell through, Kayla and Tobi bought Sweat back for a fraction of the sale price, returning as owners of the company they built.

The lesson? Kayla didn't try to reinvent fitness - she just made it accessible. A 28-minute workout, a PDF, and Instagram were all she needed to build a $400M empire. She bet that women wanted to feel strong, not starved, and built a global community around that belief. Sometimes the best businesses aren't clever - they're obvious.