You mean an AirTag?
Not sure what "the iSearching" app is. Do you perhaps mean the Find My App?
You can share the AirTag with friends by following the steps in the link below.
click here ➜ Share an AirTag or other item in Find My on iPhone - Apple Support
Not sure what you mean by "didn’t have a realtime gps on it".
Airtags have no GPS, they have a bluetooth beacon that is picked up by other Apple devices around them, and they update the AirTag's location on Apple's server based on their own location.
Perhaps if you explain clearly and in detail what issue you are having someone may be able to advise.