3 of them, technically 4. One of the app icon and = SimplePlanes, a stubby version of the last one, the last one, and this one. ==

No offence, but why do we need so many?

= "Simple" in white, "Planes" in blue, one word, generic font.

== Using the Wayback Machine ( https://archive.org/web/ ) to look at old snapshots of the site.