Echofon iPhone app updated to v5.1.3 (bug fixes) Echofon have released a bug fix update, taking the app to version 5.1.3. This is a little overdue, in my opinion, and I’m hoping it addressed the instabilities that the app has been exhibiting over the last few weeks. I am iCraigt on Twitter. By icraigt Craig Thornton (@icraigt), Geek Dad, husband of @linsthornton, Principal Engineer at JLR, tech addict. All views my own. View all of icraigt's posts.