Kayla Itsines and Tobi Pearce have sensationally bought back Sweat, the fitness app they founded in 2015 and sold at the height of the pandemic in a $US150 million deal.

The Adelaide-based founders are believed to have bought Sweat for a fraction of what US-based iFIT Health & Fitness paid for it in July 2021, when many physical gyms around Australia and the world were shut due to COVID-19 restrictions.