How to get here wego on gear s3

[AC Question]

Hello. I want to get the here wego on my Samsung gear s3. I use an apple iPhone 6 and I have the gear managing app downloaded and connected to to my watch. In the gear app under setting - Samsung apps, I can't seem to find any app called neither here wego nor a lot of other apps I saw other people use. Is this because that u use the official gear app or is it because I am using iPhone or a completely different thing?
Thanks