New app Nexus connects fitness, nutrition and cycle tracking through AI-powered health companion
App launches in the UK today promising personalised guidance and data-driven insights for every life stage.
A new UK-based app, Nexus, has launched in the App Store today (Friday 10 October), promising to bring together fitness, nutrition, and cycle tracking into a single AI-driven platform designed specifically for women.
Described by co-founder Leo Tyson as “an intelligent health companion built for women,” Nexus aims to bridge what Leo calls the “fragmented” state of current health tech, where tools for fitness, symptom tracking, and wellbeing exist in isolation.
“Currently health tech is built in isolated verticals often not specifically for women, but women are unique and health does not occur in isolation,” he said.
“We know from our white paper The Period App Problem that many women feel disappointed when they download menstrual cycle trackers as they expect more from them.”
Built around a proprietary AI and “Nova” health coach
At the heart of the Nexus platform is Nova, an in-app AI health coach that connects a woman’s health data — from cycle tracking and nutrition to mental wellbeing and life stage — into adaptive, evidence-based guidance.
Nexus uses a proprietary large language model (LLM) and a peer-reviewed health database, blending medical research, clinical guidelines, and user insights to produce personalised recommendations that evolve with each woman’s body and lifestyle. The company says the model was built specifically for women’s health, offering a level of personalisation and data control “that far surpasses off-the-shelf AI systems.”
“By unifying so many apps in one, Nexus gives women a single intelligent platform,” Leo said.
“Nova connects these data points into personalised, evidence-based guidance that evolves with every stage of life.”
The app features a female-specific onboarding process offering over 50,000 unique combinations of personalised insights, reflecting the diversity of women’s health experiences.
Accessibility and empowerment at the core
The Nexus vision stems from more than a decade of Leo’s one-to-one coaching with women experiencing hormonal, digestive, and menstrual health issues.
“I always had a sense of helplessness when I’d do a consultation call and a woman couldn’t afford 1-1 online health coaching,” he said.
“It was so frustrating to know you could help, but then to see them try to put the pieces together themself using various bits of tech.”
That experience shaped Nexus’s mission: to make personalised health coaching accessible to more women.
“Our north star is to recreate the personalisation, clarity, guidance and education that comes with 1-1 coaching but at an accessible price point for any woman who needs it,” Leo said.
Leo, who grew up working class with a single mum, says that background continues to drive his commitment to accessibility and empowerment.
“It always bugged me that my coaching service was so expensive and I couldn’t help but feel frustrated when I saw women I was friends with or had enquired about my coaching then continue to be stuck in the same cycles of unhealthy habits, confusion and often a restrict / overeat cycle,” he said.
“When you have clients on video testimonial talking about how life-changing working with you is, how you’ve helped them get a promotion at work because they no longer experience severe PMS or how you’ve helped save their relationship and just overall improve quality of life, it’s hard not to want to build that at scale and make it accessible to more women!”
Beyond Nexus
Beyond Nexus, Leo has also built a reputation as a community builder and advocate for women’s health innovation, founding and hosting a number of community events in London, including partnerships with Barclays, Covington, and Revenge Capital.
His broader vision for Nexus is one of data ownership and advocacy. By consolidating personal health data into one secure platform, Tyson hopes to help women “use it for more efficient and effective conversations with their medical professionals,” potentially reducing diagnostic delays and instances of medical gaslighting.
“Nexus gives every woman a health coach in her pocket and the knowledge to become her own expert,” Tyson said.
A growing convergence of fitness and women’s health
Nexus’s launch lands amid a surge of interest in digital tools that link fitness tracking with reproductive and hormonal health — a space increasingly defined by AI integration and data consolidation.
In recent years, apps such as Wild.AI (recently acquired by Zepp Health) have explored similar intersections of performance and wellbeing, as demand grows for holistic, life-stage-aware health tools for women. Earlier this month, fitness giant Peloton announced it was creating an 8-week program for menopause care, research study and more in partnership with Respin Health. And women’s health clinic Midi Health is partnering with Club Pilates and Pure Barre to incorporate science-backed educational content and experiential workshops into fitness classes.
For Nexus’s part, it enters this market with a focus on connection — both in terms of data systems and user experience.