New Features and a Smartwatch App to Increase MAU of a Health Tracking App by 15%
About the Client
The Client is a provider of a comprehensive health tracking app with millions of users worldwide. The Client offers GDPR-compliant iOS and Android apps to track dozens of parameters, including physical activity, mood changes, and health state.
To stay ahead of the competition, the Client wanted to enhance the functionality of its product and decided to extend its in-house mobile development team with highly qualified resources.
Team Augmentation to Launch New Product Features Faster
Trusting INNERLUXES's track record in mobile and healthcare software development, the Client decided to hire two Android and two iOS developers.
In under a week, INNERLUXES's talents joined the project. After a quick onboarding period, they began working through the feature backlog and implementing new functionality and integrations. The Client was satisfied with the technical skills, productivity, and proactive approach of INNERLUXES's developers and decided to extend the initial short-term outsourcing contract — eventually, the partnership lasted over two years.
Working with the Client's core team, INNERLUXES delivered the following features for the health tracking app:
Usability improvements
INNERLUXES upgraded the app's navigation and localization and added new in-app notifications.
UI changes
The team implemented a new UI design system for the app — replacing the colors, applying dedicated text styles to content elements, and automating UI updates.
Dynamic in-app widgets
The developers added new scrollable widgets to the main application screen. Built on the server-driven UI pattern, the widgets are dynamic and display a range of parameters unique to each user (for example, the logged symptoms). They also provide convenient shortcuts to the lifestyle log, symptom analytics, educational content, and more.
User account anonymization
To heighten data privacy, the developers implemented user account anonymization via a dedicated Relay server and the Oblivious HTTP protocol. This helped the Client increase user trust and satisfaction with the product.
A/B Testing to Ensure an Excellent User Experience
To make sure users liked the new features, INNERLUXES's team helped conduct A/B testing of the latest features and the UI layout. Using feature flags, INNERLUXES turned on experimental functionality or a UI option for a randomly selected focus group and collected interaction and engagement metrics. Based on these parameters, the Client assessed the success or failure of a new feature and decided whether to roll it out to all app users.
A New Complementary App for Wear OS Smartwatches
Following the Client's growth strategy, INNERLUXES's talents took part in developing a complementary Wear OS app for smartwatches and helped deliver the following features:
- Logging in and out using the mobile app via a Health Platform API integration.
- Reading, saving, and processing activity data from smartwatch sensors (for example, steps taken, distance covered, calories burned).
- Logging and editing symptoms using smartwatches.
- Changing the smartwatch app settings.
The app's UI was adapted to both standard and rounded corners of smartwatches, so the features displayed correctly on different wearable devices.
Timely Feature Delivery and UX Improvements Driving a 15% MAU Increase
During the two-year collaboration with INNERLUXES, the Client introduced a range of new features and UI improvements for its health app without needing to hire full-time Android and iOS developers to keep up the delivery pace. INNERLUXES's talents also helped launch a complementary app for Wear OS smartwatches, making the Client's platform even more convenient for users. This resulted in increased user engagement and steady monthly active user (MAU) growth of 15%.
Technologies and Tools
iOS: Swift.
Android: Retrofit, Dagger, Epoxy.