In reply to mattck:
We're always grateful for stuff being pointed out so thanks and please keep it up.
This issue is due to the addition of white grades (E7 and up for trad) to the rockfax grade colour-bracketing. The black grades-bracket was a massive spread before, and we had some valid complaints from the wads that the system was a bit exclusive in favour of non-wads, so we split the top section off into white.
What you're seeing is a result of the android app not yet accounting for this new bracket, but Martin, our android dev, has recently started working on this stuff again after having been sidetracked by important backend work for some time.
We've recently gained a new developer who's taking over a lot of the non-android stuff from Martin, so you should start seeing more regular android updates in the near future.