Ada is a feminine name. The Ada language is named after Ada Lovelace.

https://en.m.wikipedia.org/wiki/Ada_(programming_language)

I still luckily have a nice group of friends using Signal but I agree that dropping SMS support was a mistake. There was a good issue explaining why dropping SMS support was bad on their GitHub: https://github.com/signalapp/Signal-Android/issues/12560

Yup I use insert for this all the time.