I cannot believe that Resilio are pushing these updates out without a warning that they will NOT sync with IOS devices. I was recently foolish to update both my computers to 2.5.7 and found I could not sync to my ios devices. After many hours searching and trying to connect I emailed support and received this reply: Hello, Thank you for contacting us. We have a connectivity problem between 2.4.x version on iOS devices and Sync 2.5.x for desktops. The thing is that 2.5 version is not compiled for iOS device but we plan to release it ASAP. So in your case better to you 2.4.x app version for desktops. Best regards, Anna Why Oh Why do they not send a warning for a known problem on the update page??????????????????? Really disappointed with Resilio for this, and it seems there has been an issue with 2.5 ever since it was released. Sadly they have broken my trust and I cannot recommend the app to anyone now. All I can say is BE CAREFUL with updates!