As you can see it is tabbed. Swiping from the left will expand the contacts. It is absolutely simple to flip back and forth between conversations. However while HelloSMS still works, their MMS cloud based solution has been turned off and no longer working. Texting works but MMS does not.
After all of these years, I've been dealing with HelloSMS with no MMS simply because everything else pales in comparison with this tabbed design.
How much would a tabbed SMS app clone be to make or would anyone be willing to jump in where HelloSMS left off?