Is there a PC or Mac version of the 4iiii app? January 09, 2020 05:35 Updated The 4iiii app is currently available for iPhone and Android. Related articles Is there a free 4iiii training app that works with Fliiiight? Bike computers, headsets and smartwatches Using the 4iiii app's diagnostic tools Compatible training apps (pre-release information) Can I ride my TrainingPeaks program on Fliiiight? Comments 0 comments Please sign in to leave a comment.