Confused...

My phone recently broke so I found this app that I can use on my mac in the meantime. After downloading it, I began texting people. I noticed people were taking hours or even days to respond. I knew something was wrong. I later realized that people recieve my texts and they respond but the app doesn’t load their message through unless I log out of my account and log back in. I have been having to log in and out of this app so many times its ridiculous. idk if i am doing something wrong, maybe its just my computer.. idk but i definitely need to find a new texting app.

47469536 about TextNow - Free Text : Free Texting Picture Messaging and Phone Number