Signal works great. The one big barrier to more uptake is a feature that many non-nerdy users seem to use: group video chat. You can one-on-one video chat, but not with a group. The moment that's there I imagine huge amount of people would be interested to move away from messenger/Skype.
I've also been told by family that in some Asian countries you have to pay to get it on Android/iPhone, but maybe that's a copycat that is just using the name...
> I've also been told by family that in some Asian countries you have to pay to get it on Android/iPhone
That sounds extremely suspicious. If Signal isn't available in the Google Play Store in those countries, or the Play Store itself isn't available, it can be downloaded here:
I've also been told by family that in some Asian countries you have to pay to get it on Android/iPhone, but maybe that's a copycat that is just using the name...