Contact
Smartphone showing a pink diet diary app screen with confetti on a pink backgroundSmartphone app with red and pink promotional cards surrounded by falling confetti on a pink background

Slimfast® Coach Chatbot and Health Tracker  • Declassified
A conversational AI coach with complex dialog flows for Unilever's Slimfast

Blue Unilever wordmark logo on a transparent background

Client since 2014

Challenge

Slimfast, an iconic weight-loss brand, sought to modernize and enhance its customer engagement. Recognizing the need for a digital transformation post-rebranding, they required an app that not only complemented their products but also engaged users in a unique, supportive way.

SlimFast Coach app screens with pink interface and meal plan dashboardPink SlimFast Coach mobile app screens showing meal plans, breakfast tracking, and health dashboard mockups
Ambition

Our goal was to create an engaging, user-friendly app that acted as a virtual weight loss coach, offering encouragement and tailored support. This involved understanding user psychology and developing an app personality that users could connect with, ensuring an interactive and motivating journey toward their weight loss goals.

Two women holding SlimFast products while smiling at each other indoorsTwo women compare meal replacement drinks in a home hallway near stairs
Solution

Slimfast® Coach Chatbot and Health Tracker

A comprehensive and engaging mobile app experience, acting as a personal weight loss coach. The app, infused with a lively and supportive personality, guides users through their weight loss journey. It includes features such as a Diary, Tracker, and Dashboard, each designed to offer insights and support. The signup process mimics a real-world consultation, setting up a personalized plan for each user.

Smartphone showing a meal plan overview app beside fresh raspberriesSmartphone showing a diet plan app beside raspberries, a smoothie, banana, and orange

Empowering Journeys, Celebrating Milestones

The Slimfast Coach app is more than a tool; it's a companion on the journey to health and wellness. With over 253 individual messages and 4.4 billion unique sequences, the app provides a diverse and responsive experience. It's a celebration of progress, with each step towards the goal being acknowledged and cheered. The app not only assists users in keeping track of their diet but also acts as a source of constant motivation and support, embodying the essence of the Slimfast brand: empowering women to achieve their goals.

Pink calorie tracking app screens showing a 1200-calorie daily limitPink-themed mobile app screens showing health tracking and calendar features
The Bottom Line

Slimfast needed a digital coach that could make health tracking feel supportive rather than mechanical. The broader challenge is building behavior-change tools people will actually return to. The work is strongest when strategy, design, engineering, and craft move together, which is how L+R turns emerging technology, including practical AI, into business advantage. If your wellness product needs a more useful digital companion, reach out and we will help map the path.

More Content You May Enjoy