MyActionTracker App for Action Learning Network (CCHMC)

iOS Mobile Application Development

Health Data Integration

Apple Watch application

Digital Health


Action Learning Network is a community of clinicians, researchers, parents, and patients from diverse medical institutions aiming to improve critical outcomes and enhance the standards of care for children with heart failure.

BTC built an intuitive Apple Watch application to track the cardiac health of pre-op pediatric heart patients. The solution helped doctors to monitor the different health and fitness parameters of children awaiting heart transplant surgeries.

The Challenge

  • Ideate, design, and build a next-generation Apple Watch solution that is intuitive and easy to use by children.
  • Capture critical health parameters of patients to help doctors have a holistic understanding of their health.
  • The solution should be non-intrusive and be able to capture data in the background.
  • Seamlessly integrate multiple fitness tasks such as 6-minute walk tests assigned by doctors to improve the overall fitness of the children undergoing surgery.
  • Transfer the data in a secure and coherent manner to the Action data centers for analysis and further processing.

The Solution

  • BTC worked closely with a team of doctors at Action to identify the critical parameters required for the study.
  • Using our extensive experience working on the Apple Health Platform, we helped the client team make critical decisions regarding the solution design.
  • We developed a user-friendly Apple Watch application that ensures hassle-free use by children with minimal to no adult supervision.
  • Built a robust and secure Java-based MicroService layer to facilitate data transfer between the App and data center.
  • Further, ensured the data was securely captured in the background and adhered to industry regulations and privacy standards.
  • Optimized the user experience based on early user feedback and enhanced the application to capture additional parameters.
  • Supported the Action IT team with setting up the required infrastructure at their data center for extracting data.

Parameters Captured:

Active & resting energy burned
Exercise time
Stand hours
Heart rate
Sleep: Time asleep, Time awake
Weight (Manually entered)
Six min walk test (Manually triggered)
Workout data
Respiratory rate
Watch wear time


Apple iOS


User Notifications
UIKit & CoreMotion

The Outcome

  • BTC built an Apple watch application named My Action Tracker for Action Learning Network, Cincinnati Children’s Hospital that met all stringent and complex requirements on all fronts–ease of use, monitoring of multiple parameters, data transfer without user interaction, and fast responses.
  • A middleware layer was built and deployed to be extensible for capturing additional data parameters.
  • The solution was deployed in a lightweight container, thus saving costs.


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