← All work
● LIVE ON APP STORE iOS + APPLE WATCH GARMIN NATIVE

HIIT
Fitness.

Every fitness app feature you actually want, in one place. AI coaching, meal planning, body scanning, nutrition tracking, and a social feed to share the wins — across your phone, your watch, and your wrist.

CLIENT
Casey, Bridgend
PLATFORMS
iOS · watchOS · Garmin · Android
STATUS
Live
HIIT Fitness home screen on iPhone
HIIT Fitness schedule screen on iPhone
The brief

"I want the best fitness app features all in one place — and I want it to feel like it was built for serious athletes."

Casey is a creative in Bridgend with a clear vision: the fitness world is full of apps that each do one thing well, and nothing that does everything. He wanted a platform that combined AI coaching, intelligent meal planning, a body composition scanner, full nutrition tracking, and a social layer where athletes could share their progress — all wrapped in a UI that felt as serious as the workouts inside it.

We built it across four platforms: iPhone, Apple Watch, Android, and Garmin — with a dark, high-contrast design language that matches the energy of the people who'd use it every day.

What's inside

Five tools.
One app.

AI Coaching

Personalised workout plans generated and adjusted by AI based on your fitness score, goals, and progress. The coach adapts as you do.

Meal Planner

Smart weekly meal planning that works alongside your training schedule. Fuel your workouts, not just your hunger.

Body Scanner

Track your physique over time with the built-in body scan tool. Honest progress tracking without the guesswork.

Nutrition Tracker

Log calories, macros, and meals. The tracker surfaces insights rather than just numbers — built to help, not overwhelm.

Social Feed

Share your workouts, stats, and milestones with a community of people who get it. Stories, trending posts, and real workout share cards.

HIIT Score

A single fitness score that combines activity, consistency and performance into one number — so you always know where you stand.

In the app

Built for the
serious athlete.

Multi-platform

Your wrist.
Your watch.

HIIT Fitness follows you beyond the phone. The Apple Watch companion puts your workout controls and live stats on your wrist during every session. The Garmin Connect IQ app brings the same intelligence to Garmin devices for athletes who prefer it.

Apple Watch

Full workout control from your wrist.

Start sessions, pick your sport, track heart rate and calories, and mark sets done — without touching your phone.

HIIT Apple Watch today screen
HIIT Apple Watch sport picker
Garmin Connect IQ

Built for Garmin athletes too.

Available on the Garmin Connect IQ store — bringing HIIT Fitness to the wrists of cyclists, runners, and triathletes who already rely on Garmin.

Garmin Connect IQ ↗

Got an idea this ambitious?

Multi-platform, full-featured, designed to compete with the best — this is the kind of build we live for. Tell us about yours.