A provider of award-winning activity tracking mobile apps
Sports, Social Networking
Product Development
Android SDK, Kotlin, Koin, Room, RxKotlin, Google Play Services, Amazon S3, Amazon DynamoDB, Firebase, Glide, Espresso, Mockito


Our client entered the market with an iOS app that allows users to track their physical activity, create and join sporting communities, share their fitness progress, organize and participate in competitions, and engage in other social activities. To make their mobile product available for a wider audience, the client needed to develop an Android application that would be an equal alternative to its iOS counterpart.

ITRex took on the following challenges:
Support the client’s product vision with an adaptable development strategy, set up seamless communication with the client’s team and provide transparent reporting on the development progress
Review the existing iOS app to formulate the app’s feature set
Suggest an optimal tech stack for front-end and back-end development
Develop a high-performing activity tracking app and release it to Google Play within 2 months


An Android application on par with its iOS counterpart in terms of functionality, usability, performance, and security released on a tight deadline
Diverse functional modules allowing users to set activity goals, track progress, join teams, and share achievements
GPS tracking for monitoring the user's location, with simultaneous access to other app features
A groups feature that lets users search for and join communities with similar interests and goals, collaborate and compete together with community members
An achievements feature that allows users to keep track of their progress and view leaderboards
Integration with Google Fit through well-designed APIs for fast transmission of activity data
Powerful analytics converting location and activity data into performance stats
Seamless integration with a cloud back end for swift application performance, on-point security and lower maintenance costs
Activity tracking application
activity app solution


The application turns an Android device into a truly intelligent activity analytics engine and provides outstanding capabilities for communication among sports fans
With a newly released app, the customer reached out to a 130 million audience of Android users and cemented its position as a leading provider of activity tracking apps

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