Using the new App (not Classic), Premium Member (Log-in confirmed) and confirmed no filters applied.
Using the App on my Samsung S7, I see this map of GCs for the Yarm, UK area:
https://drive.google.com/open?id=0B7ZmkXRryAlIUjlXSmhodU1XVEk
Whilst the equivalent area on the website gives me this:
https://drive.google.com/open?id=0B7ZmkXRryAlIX2p2UDl1UFlmTW8
Clearly, the app is failing to display all available caches.
Any ideas why I'm not seeing all the available GCs in the App?