willem.com

Track Your Workouts Without a Smartwatch

My adventure building a workout app

May 11, 2024 -

As a little side-project, squeezed between my normal work, I have been working on something of personal interest: a native workout tracking app for iOS. I wanted to make my smartwatch obsolete, instead using my phone to track workouts. How hard could it be to gather detailed sensor data using native Swift APIs?

Continue reading
Early prototype of the app working with Bluetooth heartrate sensor and its early dataset shown in another app that makes some pretty graphs (HealthFit)
Early prototype of the app working with Bluetooth heartrate sensor and its early dataset shown in another app that makes some pretty graphs (HealthFit)
My bike with Bluetooth sensors connected to my MacBook running Xcode
My bike with Bluetooth sensors connected to my MacBook running Xcode
Nothing makes you feel alive like going outside for some physical action - I love working out!
Nothing makes you feel alive like going outside for some physical action - I love working out!
Designing a paywall for my app: not my favourite ask from users, but it is a very important one nonetheless.
Designing a paywall for my app: not my favourite ask from users, but it is a very important one nonetheless.
Testing the app on my bike using a QuadLock case and mount
Testing the app on my bike using a QuadLock case and mount
Screenshots of the app's onboarding process: asking for permissions and guiding new users
Screenshots of the app's onboarding process: asking for permissions and guiding new users

Other stories

all blog posts

Tagged

AppleBikeCreatingDataDesignLifestyleHeartMinimalProgrammingSensorsSportWatch

Articles (158)