I use an iPhone and my fiancé uses Android. He is not very tech savvy. He does not like to text for privacy reasons. I was going to recommend we get Signal but see others in Lemmy talking about Matrix. Is that better? If so, what app is best that works on both our phones? Thanks Lemmy friends!
I use Matrix (Element client on iOS) with the extended family and it works well. Most of them are not tech-savvy. I self-host my own Matrix instance because I wanted to have control on where personal pictures were hosted.
And naturally, matrix is federated so you can join rooms of any other instance.