[Electronics-Talk] accessible instant message and chat apps

[bookwormahb at earthlink.net]

Hello all,

Hope everyone is safe and healthy at home during this pandemic.

Since I cannot  go out in person to see people in restaurants, malls, etc, I'm interested in apps to connect via messaging and video calling. I have low vision so can see a bit of the video but I do use voice over on the tablet.

I know I message is accessible.
What apps can be used on Ipads, Iphones, and android devices like a Galaxy? I'd like something cross platform since not everyone uses the same smart phone or tablet.

Please tell me what apps you found easy to use and accessible. 
What do you like about them? What is the limit on the number of participants per call or chat? 
I know there are apps that you can voice chat instantly like a walkie talikie.
Are those accessible? Either heytell or  voxer?

I know another cross platform one is telegram but do not know about accessibility.

Thanks!
Ashley

PS, I have already used facetime on the tablet and Skype on the desktop side.