The mobile app has a lot of great things about it especially when you are online and not sure in general that there is anything better online. I purchased the Logos 4 because of cross platform access (although I did not know the significant limitation on offline usage) There are two major things that I find frustrating.
No way to hide resources in online mode - the standard packages come with hundreds of resources you won't use and with limited screen space, trying to find a resource is very painful. Even if you figure out how to hide in your desktop it doesn't carry foward to the mobile app since it appears all hidding them does is remove them from that particular device and there is no way to remove them from the mobile app. So you have to scroll through hundreds of resources to find anything.
offline almost worthless - I travel internationally a lot (where cost requires turning off data roaming) so I end up using my iphone in offline mode a lot and being able to carry study material with me is one of my biggest requirements. As far as I can tell this app in offline mode is really only a reader. You can download various other materials but there is no indexing and no way to access them (commentaries, word study tools etc.). Despite paying for all these resources and even being willing to devote the space on my mobile app to download a number of them, I can't access them. It is forcing me back to Olive Tree for offline use since you can't even do a basic word lookup.
Am I missing something? I hope these two items are on the list of things that someone is working on?