Australia
Kayla Itsines (@kayla_itsines) is an Adelaide-born personal trainer who built one of fitness's largest Instagram presences on the back of her Bikini…
Total Followers -1.5%
15.9M
Across YouTube, Instagram, TikTok
Primary Platform
YouTube
417K followers · 3% of audience
Engagement
1.9%
vs. 1.5% category median
Sponsorship Tier
Mega
Est. $154K–$338K / IG post
After iFIT acquired Sweat in 2021 for a reported ~$400M, Itsines and her team reacquired the business amid iFIT's broader cost cuts.
Itsines shared the pregnancy and birth across her socials, continuing her long-running pregnancy/postpartum fitness content.
Came after her highly publicised 2020 split from Sweat co-founder Tobi Pearce.
| Window | YouTube | TikTok | Combined | |
|---|---|---|---|---|
| Last 7 days | +0 +0.0% | -4614 -0.0% | +0 +0.0% | -4614 |
| Last 30 days | +0 +0.0% | -242998 -1.6% | +0 +0.0% | -242998 |
| Last 90 days | +0 +0.0% | -246074 -1.6% | +0 +0.0% | -246074 |
| Last 365 days | +0 +0.0% | -246074 -1.6% | +0 +0.0% | -246074 |
Daily follower snapshots from CreatorDB's longitudinal index.
Kayla Itsines (@kayla_itsines) is an Adelaide-born personal trainer who built one of fitness's largest Instagram presences on the back of her <strong>Bikini Body Guide (BBG)</strong> program and its digital successor, the Sweat app, which she co-founded with ex-partner Tobi Pearce. After Sweat was acquired by iFIT in 2021, Itsines negotiated a full buyback in 2023, reclaiming sole ownership of the platform and subsequently expanding its programming to include new strength and pregnancy-focused training tracks. Now based in Australia with partner Jae Woodroffe and their children, she continues to deepen Sweat's product depth while maintaining a high-volume Instagram presence — positioning the brand for a more product-led revenue model alongside traditional sponsorships.
Benchmark estimates for a creator at Kayla Itsines's tier (Mega, 15.9M combined followers, Australia). Pulled from CreatorDB's category benchmarks.
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Her full name is Kayla Itsines — the name she was born with and still uses professionally. She is a Greek-Australian personal trainer originally from Adelaide, South Australia.
Sweat is a subscription fitness app offering structured workout programs, including Itsines's signature BBG and BBTOG plans. She co-founded it with ex-partner Tobi Pearce before it was acquired by iFIT in 2021 and subsequently bought back by Itsines in 2023.
In 2023, Itsines repurchased Sweat from iFIT, citing a desire to regain creative and strategic control of the platform she originally built. Following the buyback, she expanded programming to include new strength training and pregnancy-focused content tracks.
Itsines is engaged to Jae Woodroffe, an Australian entrepreneur. The couple announced their engagement in late 2022 and welcomed their son Jax in 2023.
Yes. She has a daughter, Arna, from her previous relationship with Tobi Pearce, and a son, Jax, born in 2023 with her current partner Jae Woodroffe.
BBG (Bikini Body Guide) is a 12-week high-intensity resistance training program Itsines launched as a PDF guide before evolving it into the Sweat app. It became one of the most recognisable home-workout programs of the 2010s and is a primary driver of her audience loyalty.
Her recent confirmed partnerships include Lululemon (activewear), Apple Fitness+ (fitness tech, brand ambassador role), MyFitnessPal (fitness tech, product launch), Protein World (supplements), and Bonds (apparel). The roster reflects a consistent focus on health, movement, and lifestyle categories.
Yes. As of April 2026, Itsines holds a brand ambassador role with Apple Fitness+, promoted via Instagram. This is among her highest-profile platform partnerships and aligns with her ownership of the competing Sweat app — a notable brand positioning tension worth monitoring.
Itsines has approximately 17 million total followers across platforms as of mid-2026. The vast majority sit on Instagram (~15.4 M), with YouTube at roughly 1.5 M and TikTok at under 100 K.
Her headline engagement rate on Instagram is approximately 0.9%, which sits below the fitness category median of around 1.5%. YouTube performs more competitively at roughly 1.9%, suggesting stronger community depth on that platform relative to her follower size.
Stats (followers, engagement, audience demographics, growth) are pulled live from the CreatorDB API covering YouTube, Instagram and TikTok. Bio and FAQ content is AI-assisted; news items are sourced from cited public press at generation time. Read the full methodology →
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@kaylaitsines · YouTube
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