Hey Grindr, how about creating stories for the app as well as stories (Instagram), Fleets (Twitter).
In this idea, he works like the others, being able to publish photos/videos for 24 hours.
Only people from their own city could see these stories, and if someone from another place wants to access them, they would have to subscribe to Grindr XTRA.
In this Grindr Stories, it would also be possible to comment, people's photos/videos or react with the reactions already created by the app itself.
Other XTRA features for this idea would be that only people who subscribe to the app can see who has viewed your stories.