True which is why WhatsApp, Facebook Messenger and Telegram still reign supreme. Don't forget that its a minute for each person I want to contact, why bother if I already have the phone number of everybody I know. SimpleX targets a different market than the previously mentioned Messengers, and that's OK, but it also means its a no-go for anyone outside that market. Signal on the other hand is targeting the same market and thus is a viable alternative and for that reason I could convince my friends and family including my grandmother to use it instead.