Hi there! I understand you're having trouble with the Zewa-Fit Pro app not saving your updated height and weight details on your iPhone. Let's work together to get this fixed.

To start, could you tell me if you receive any error messages when trying to save your updated information? Also, have you tried tapping "Done" or "Save" after entering your new height and weight, as sometimes the app requires explicit confirmation to save changes?

Meanwhile, here's a step-by-step approach you can follow:

1. Open the Zewa-Fit Pro app on your iPhone.
2. Navigate to the Health Details section.
3. Tap "Edit" to change your height and weight.
4. After entering your new details, make sure to tap "Done" or "Save" to confirm the changes.
5. Close the app completely (swipe up to close it from the app switcher).
6. Reopen the app and check if the updated details are saved.

If this does not work, please check if you have the latest version of the app installed from the App Store as older versions may have bugs affecting this function. You can update by:

- Opening the App Store.
- Tap on your profile icon.
- Scroll to find Zewa-Fit Pro and tap "Update" if available.

If you're already on the latest version and still facing issues, it could be related to app permissions or cache:

- Go to iPhone Settings > Zewa-Fit Pro, and make sure all necessary permissions are enabled.
- Try restarting your iPhone to refresh the system.

Let me know what you find at each step, and we can dig deeper if needed! Are you okay with trying these steps?