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Improving time-to-market, development process and upskilling Thriva's dev team

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As we embarked on our mobile app journey, Callstack played an essential role in helping us release our mobile app to the market. They helped us set up and optimise our mobile ecosystem allowing us to build upon our app with speed and confidence. Their support through training and workshops made sure we could successfully grow our mobile team and know-how.

Donovan Isherwood
Engineering Manager



Thriva is a provider of the health care mobile app that allows their over 100,000 users to track and improve their health with a flexible blood test subscription and GP-reviewed results. 

With a simple finger-prick blood test, users can measure their liver function, HbA1c levels (type 2 diabetes risk), vitamin D level, cholesterol level, thyroid profile, testosterone, and many more.

thriva mobile healthcare app

In short, we helped Thriva to

  • Quicker time to market of Thriva’s mobile app.
  • Add automation around the mobile process to further speed up development and mobile releases.
  • Resolve technically complex challenges and bugs by sharing our expert React Native knowledge.



We were asked to help the Thriva team in their daily React Native development work including front-end development, redesigning the app, updating React Native to the latest version, etc. 

Also, we were responsible for leveling-up Thriva’s developers' React Native skills by organizing and conducting upskilling workshops.


The actual work done

We cooperated with the Thriva team as a staff augmentation partner. Our developer, Adam Trzciński worked with our client’s development team as a senior developer and React Native mentor. 

We helped Thriva in the following challenges:

  • front-end development,
  • redesign of Thriva’s healthcare mobile application,
  • connecting app’s business logic with the backend,
  • dependency maintenance,
  • upgrading React Native version used in the mobile app,
  • code reviews,
  • and pair-programming sessions. 

Also, we were helping Thriva with Expo and new releases to App Store and Google Play.

thriva mobile healthcare app welcome screen and article


Outcome and benefits

Thanks to our cooperation, our client’s developers significantly improved their React Native skills thanks to the workshops and mentoring conducted by our developer - Adam Trzciński

From the tech side - we’ve helped in all the aforementioned tasks, including such challenges as:

  • improving time to market of their mobile app,
  • adding automation around the mobile process to further speed up development and mobile releases,

and also implemented new PoC features into the app such as biometrics and integration with mobile health kit.

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