What are some alternatives?
Glympse - Glympse is the easy way to safely share your location in realtime. No sign-up needed.
OwnTracks - Cross-platform location sharing
Trusted Contacts - Let your loved ones locate you with Trusted Contacts by Google.
Life360 Family Locator - Life360 helps manage the chaos of your daily family life and lets you know:
Pathshare - Pathshare is a beautiful app that helps you share your path in realtime.
Osmo - GPS-monitoring : easily record a GPS-track travel and be able to watch an entire group of people.