Users with secure Google password (ones with symbols like "&") - you will have to remove the symbols from your password to be able to send using SMS GV Extension Version 1.3.1. Hopefully, he'll fix the bug in the future. Unfortunately, it took me 20+ hours of debugging, iPhone restores, and reinstalls to figure this out. Unfortunately, the only customer support the developer seems to provide is license support. I did have no trouble setting up receiving using the developer-provided documentation. It's now working great and there is no better solution. All in all, I was disappointed with the customer support since this was a paid app, but the app itself is worth $3.