Need Help Hiding GPS on Smartphones

I'm seeking a professional who can either set up a system or provide instructions on how to hide GPS location from EVV (Electronic Visit Verification) apps on my smartphone. This is mainly due to privacy concerns.

Ideal skills for the job include:
- Extensive knowledge of GPS technology and smartphone settings
- Familiarity with EVV apps
- Experience in privacy protection techniques

Please note, I'm currently uncertain whether I will require a permanent solution or a temporary workaround. Therefore, I am open to suggestions for both.