I've been with Logos since L3, and only recently ascertained, to my dismay, that Visual Filters don't display on the mobile app. I spent quite a bit of time creating a filter that changed all the pronoun abbreviations (3ms, 2fs, etc) to actual Hebrew pronouns in one of my Hebrew grammars, since I find the "codes" incredibly" cumbersome when trying to read quickly. I wanted this especially for the iPad while I'm in class, but unfortunately it's a no-go at this point.
I would like to suggest that this feature is supported (display only) on iOS.