When Wechat updates it's voluntary. Made a free w/c to w/c call internationally. Decent sound. Then went to make a paid call on Skype. Forced upgrade again? We went through this 2 or 3 years ago. It won't work this time, not with me. I just got a refund. Will spend the day looking for an old school html (not html5) site that let's us call the world for a penny a minute. They're out there.