Is it really free?
Yes, it is. Dialogity is in beta and it’s free to use for all features. No credit card registration is needed.
How long it remains free?
Service is completely free until 1st of January 2021. Accounts created until this date will be free forever for the current feature set including maximum 100 incoming messages per month. If this limit is not sufficient, it can be increased any time for 5 USD per 1000 message per month.