Discord for friends, SMS for everyone else. Rather use something private but I can't convince people to care.

Discord/SMS/Instagram/Telegram/Matrix for text.

Discord/Skype for video.

I just use SMS. I don't need to install anything extra or make some sort of extra account somewhere. Phone plans here have had unlimited texts for like over a decade now so we aren't spending extra money here to send texts either.

Whatsapp because I can't get anyone to flip

Signal for anyone I could get on Signal.

But sms/RCS for random people I exchange numbers with.

Germany: Only aware of WhatsApp but I don't chat much...

Personally online: Discord

Discord and SMS.

Facebook Messenger. I'm from Australia (but currently living in the USA) and Facebook Messenger is by far the most common messaging app in Australia. MSN Messenger used to be #1, then it was briefly Google Talk after MSN shut down, and now it's been Messenger for a long time.

I can't get my slavic grannies and aunties off of Viber either 😂

Viber. Brings back memories.

I do cybersecurity and programming, so, stereotypically, Discord. It's more widespread than Matrix, and it's natively and easily cross-platform unlike iMessage, SMS, Telegram, or Signal.

Signal

Mix of messenger, telegram, and SMS for me.

I mostly use Telegram/Signal/Discord, but Snapchat and Insta are very popular here in Canada

estonia here: most people use Facebook messager, whatsapp, sms, viber, Skype and snapchat

iMessage/SMS and Messenger are what most of my friends use. Although I know people who use Snapchat at work. I don’t anyone who uses Telegram or Signal.

Mostly FB Messenger because I can't get my relatives to use anything else :/