Iphone and Android tablet both running WDphotos

I have an Iphone and an android tablet, I have installed WDphotos on both (on the iphone for over a year now - the tablet over xmas) however since installing the WDphotos app on the tablet my phone has gone from showing the photos to having zero photos on it.

Is the software able to support the two platforms accessing the data or do I have to chose one or the other?

it should work with multiple devices

the fact that you still can connect shows that it should work

try removing the app and reinstalling on the iPhone