Why do you need it? If you feel lonely or just want to talk with someone, then personally I recommend you to have a glance at this resource with the reviews of the best nerdy dating sites right there and check the best one there. I hope that you will find some good variants for yourself. Good luck.
Some time ago I was asking myself and my friends this question cause I needed to work with clients and didn’t want them to bother me on days off, And a friend of mine – Nick shared with me a chalkboard messages mobile app, which is free and works with no lags. Through it, you can text customers, answer calls, keep the contacts separate, and switch on auto-reply to text back customers whose calls you missed.