I've heard about The Silph Road Radio recentlz which seem to be preparing an app for raid meetups. But I've developed an iOS app the last three weeks to fix the problem for organizing meetups to fight in raids together for Pokémon GO players. It was released today to the App Store, it's completely free (and even open source) so you're welcome to check it out:
My goal was to provide a way to meet up for raids in a way that is safe and transparent. You can provide gyms & raids right within the app and organize meetups. Also, you can find and attend meetups organized by others. There's even an option to set push notifications on specific gyms so you don't miss any meetup.
The project is open source (both the app and server) and currently is and always will stay ad-free. See the official project page for more information:
Of course the app will only be useful if many players use it, so spread the word!
Any feedback or ideas can be provided via our official forums:
What do you think of it? Would you use it? Do you miss any features? Just let me know!
AFTER FLAG UPDATE:
This post was flagged by the community, probably by people who don't need the app and think this is only advertisement. First: I'm not earning any money from this app, I even have to pay quite something for the servers, so "advertisement" really is only something to be flagged if it doesn't help the community and has to do with having profits for the poster. This is clearly not the case.
Also, I opened this topic into the category "Gym Battles" which is a perfect fit and as you can see from the likes count, there are quite some people who really need an app like this. To be sure, I've changed the title so any app for organizing raid meetups would fit into this topic. I hope that it will not be flagged again, it would really be a disservice for Pokémon Go players ...