Hi sultan955kcbsywy, welcome to Thunkable! 
Be sure to check out How to ask Great Questions v2.0, the Community Guidelines, and our Getting Started Guide to make the best of your Thunkable Community experience!
We do not currently offer the ability to natively access health and fitness information from a device, especially for iOS devices. On Android, there may be a Web API you could call depending on the app used.