app development for fitness center

I'm looking to have an app developed for my fitness center that is supported by both iOS and Android platforms. Membership Management is a must-have feature, as it will allow for members to register and track their activities within the app. I would also like to include User Profile Creation as an added feature, to further personalize the user experience. It would also be great if the app could integrate with other wearable devices and push notifications to keep members updated.