The app that I've been working on to help you have your group conversations in noisy places or when you're not within speaking distance is live on the App Store!
Loud restaurants, airplanes, festivals, and more. All offline, no internet required, as long as you're within reasonable P2P Wi-Fi range.
While best used with AirPods, you can use hearing aids, wired headphones, bluetooth headphones, or the speakerphone if you're one of those.
It's free, I have no plans to monetize it yet, but please enjoy it, and I hope it solves problems for you as it has for me.