Is Google Latitude still available?
Also, Latitude is no longer a feature on the latest version of Google Maps for mobile on Android and will be removed from iPhone on the App Store. That and your list of Latitude friends will be deleted.
What is Google Latitude app?

Released on February 5, 2009, Google Latitude was a mobile app for iOS and Android smartphones that allowed users to share their current location with friends and family members of their choosing. The app used location services to periodically update the whereabouts of a device for other users to see on a map.
How do I share my location between iPhone and Google phone?
- Open the Google Maps app (Android, iOS).
- Tap your profile picture or initials at the top right.
- Tap Location sharing and Share location.
- Select how long you want to share your location.
- Choose the people you want to share your location with (you may have to give Google Maps access to your contacts here).
Why did Google Latitude fail?
Cause of Failure The problem with the Latitude migration was that a lot of developers were using the Latitude API for their own apps, which meant that moving the functionality to Google+ created a lot of problems for them (i.e. their apps stopped working).
How can I track a cell phone using Google Latitude for free?

To track a cell phone using Google Earth, you can follow the steps mentioned below. Visit the website https://earth.google.com/. Now, log in using the Google login credential of the target device that you are willing to track. Enter your mobile number or the number you want to track and click on the “Send link” button.
Can iPhone and Android users share location?
You can share your location between an iPhone and Android device by using Google Maps’ “Share your location” feature. Google Maps lets you send your exact location in a text message, which can be sent between iPhones and Android devices with no issue.