To request someone's location on an iPhone, the most straightforward way is using the Messages app:
- Open the Messages app and start or open a chat with the person whose location you want to request.
- Tap the contact's name or profile icon at the top of the chat.
- Select "Request Location" from the options that appear.
- Send the request. The other person will receive the location request and can choose to share their location with you.
Alternatively, you can tap the "+" icon at the bottom-left in the Messages app, select "Location," then tap "Request" on the map that appears to send a location request message. Once the other person shares their location, it will appear below their name in your message conversation, and you can view it on a map. This method works if both parties have iPhones or iOS devices signed into their Apple ID and have location services enabled. This is the easiest native way to request location without additional apps or setup.