Read Thread: Clue Tracker
Clue Tracker is an app for Apple products and not for Androids.
Clue Tracker is only for iphones. The android version was called Box Radar but it is no longer available. Rumor is that a new android app may be in the works.
Hi. TrailMark and I are the authors of the letterboxing app Clue Tracker. It's currently only in Apple's App Store but we *ARE* developing a version for use on Android. You can read about it more here:
Thanks all for letting me know. I'm anxious to see the results in 2019.