A woman is using a laptop and smartphone to browse an online fashion store for women's clothing.

Stephanie Buttermore

FlexMade developed the SB Fit App for Stephanie Buttermore, providing bespoke workout routines and nutrition tracking. Available on Google Play and the App Store, the app delivers a seamless user experience for fitness enthusiasts. Our team built it from the app from the ground up, ensuring optimal performance and usability.

Location: Canada
Industry: Health, Wellbeing & Fitness
Website: https://www.stephaniebuttermore.com/
Period of cooperation: 5+ years
Team size: More than 10 engineers
Services: Web Development | Mobile Development | Quality Assurance | Bespoke Software Development

About the client

Stephanie Buttermore is a fitness expert and content creator, renowned for promoting balanced health and well-being. She boasts a significant online presence, offering personalised coaching, workout routines, and nutritional guidance to a global audience. With a mission to make fitness accessible and enjoyable, Stephanie decided to create the SB Fit app, and we managed its development. Her brand emphasises authenticity, empowering individuals to take control of their health journeys. Regularly collaborating with fitness professionals, Stephanie ensures the app’s plans are sustainable and effective. The SB Fit app offers exclusive content, workouts, and challenges, helping users track progress, set goals, and remain motivated. With Stephanie’s vision and FlexMade’s expertise, the app is rapidly growing and fostering a vibrant fitness community.

Dr Stephanie Buttermore: Nutrition expert, scientist, and YouTuber, pictured smiling on a health and wellness website.

About project

The SB Fit mobile app is a cross-platform solution available on iOS and Android, offering personalised training programmes by Stephanie Buttermore. Users can register, view, purchase and track their fitness plan, with the option to synchronise accounts from any other app for a smooth transition. The app tracks workouts with detailed logs and notes and includes a library of instructional videos. FlexMade enhanced the app’s core functionalities, ensuring smooth integration of subscription features and third-party services. We focused on creating a reliable, intuitive interface whilst optimising the app for both platforms. Designed to scale, the app supports Stephanie’s brand growth, extending her services to a broader audience with an engaging user experience.

Aims and Challenges

The principal objective was to develop a cross-platform mobile application enabling users to access and purchase workout programmes by Stephanie Buttermore. The application required seamless user account management and subscription synchronisation from a previous application. A key challenge was ensuring the smooth synchronisation of user data across platforms to prevent disruptions during the transition. It also had to support features such as workout tracking, video tutorials, and in-app purchases, with consistent performance on both mobile operating systems. The development process involved integrating external APIs for subscription synchronisation while maintaining security and stability. The application had to be scalable to support a growing user base and customisable to display workouts and track progress. Additionally, the application had to align with the client’s business objectives, balancing functionality and profitability, all whilst managing tight deadlines and ongoing adjustments.

Approach and Methodology

FlexMade adopted a cross-functional approach, assembling a team of mobile app developers, backend engineers, a designer, and QA specialists. The team ensured flexibility and continuous collaboration throughout development, focusing on delivering a scalable, user-friendly app with seamless functionality across mobile platforms. Regular progress evaluations and close communication with the client helped promptly integrate feedback. Key challenges included integrating third-party services, especially subscription synchronisation whilst maintaining data consistency. Extensive testing focused on user account transfers and subscription validation. The team worked closely with the client to achieve business goals, such as monetisation through in-app purchases. The app’s design aligned with the client’s brand, ensuring an intuitive interface. The approach allowed the project to adapt to evolving requirements and meet deadlines.

Stephanie Mulherin Fitness app, showcasing women's workout programmes, displayed on three iPhones.

Customers

Manages user registration, authentication and account synchronisation with external applications. Users can create a new account or log in using existing credentials via email or Facebook. A key feature is the seamless migration of user data from another app, ensuring all account details, subscriptions and preferences are preserved. By linking profiles from external platforms, it allows users to continue their activities without disruption. Advanced security measures protect user data during the transfer process, ensuring reliability. The module also includes profile management features, allowing users to update personal information and adjust settings as needed.

Subscriptions

Allows users to subscribe to workout programmes and manage their subscription preferences. Users can select from different plans that unlock exclusive training content, including structured programmes and video tutorials. The module ensures a clear overview of active, expired and upcoming subscriptions, giving users full control over their access. It also automates renewal reminders and payment processing to prevent interruptions. Additionally, subscription status is continuously updated within the app, ensuring users always have access to their purchased content. Robust security measures protect payment data, ensuring a safe and seamless subscription experience.

Fitness app interface displaying workout programmes and exercise routines for strength training.
Three smartphones displaying fitness app screens for women's workouts and bodyweight training.

Programme & Purchase

Serves as the catalogue where users can browse, compare and purchase new workout programmes. It features a detailed selection of available training plans, allowing users to read descriptions, view difficulty levels and explore trial options before making a purchase. Once a programme is purchased, users gain immediate access to the content. Regular updates keep the programme catalogue fresh, adding new content and offering personalised recommendations to enhance the user experience.

Exercise session

The central component of the app, enabling users to engage with their training programmes. It provides structured workout sessions with detailed instructions, including exercises, sets, and repetitions tailored to various fitness levels. Users can log their performance, such as weights lifted and repetitions completed, ensuring progress tracking over time. The module offers real-time feedback and adjustments based on user input, maintaining effective and engaging workouts.

Fitness app interface displayed on three smartphones, showing workout routines and progress tracking.
Three smartphones displaying a women's fitness app featuring workout promotions and instant access.

Notifications and Updates

Ensures that users are consistently informed about new content, updates, and promotional offers. This module sends timely reminders regarding forthcoming workouts, new programme releases, and achievements such as fitness milestones or completed challenges. It also provides updates on discounts, new tutorials, and other pertinent app-related events. By keeping users engaged with personalised push notifications, the module plays a crucial role in maintaining user retention and motivation. It is designed to send non-intrusive alerts, allowing users to customise notification preferences based on their needs.

Responsive design mock-up: Laptop, tablet, and mobile phone displaying a women's fitness training programme.

Task completed

The solution

FlexMade delivered a fully functional fitness app designed for personalised workout plans and nutrition tracking. The intuitive interface ensures seamless navigation, whilst a secure authentication system protects user data. A robust backend enables real-time synchronisation of training, progress, and nutrition information. The app seamlessly integrates with third-party fitness APIs and wearables for accurate tracking. Users can join challenges to stay motivated, enhancing engagement. Scalable architecture supports growth, and ongoing post-launch support ensures performance optimisation and feature updates.

The outcome

Since its launch, SB Fit has experienced steady growth on both iOS and Android platforms, with users effortlessly tracking their workouts and nutrition. High engagement is attributable to its user-friendly design and personalised features. Customer retention has increased, with users returning daily for workouts and challenges. The app remains stable even during peak traffic periods, ensuring a seamless experience. Users commend its ease of use and features that promote motivation. SB Fit has established itself as a strong contender in the fitness market, assisting Stephanie Buttermore in expanding her brand. Ongoing support and continuous updates ensure the app continues to evolve to meet user requirements.

The technologies

  • Icon JavaScript
    JavaScript
  • Technology logo
    Python
  • Icon Django
    Django
  • Icon TypeScript
    TypeScript
  • Icon Redux
    Redux
  • Icon React Native
    React Native
Three smartphones displaying fitness app interfaces for workout programmes and bundles.

Get in touch

12816 NE 104th ST, Kirkland, WA 98033, USA