The Amazon Store depends on the version number totally behind. Specifically one month. Here's "latest" version 10.4.2.3 of 22 of October. The actual current version 10.5.2 on 21 of November. So who really wants that currently there's only in PlayStore. For me, this version was not useful because they do not have the support of my Gear Fit here. But it got me nothing tasted as App of the Day.