There are been a few threads on this already. https://forum.emptyclosets.com/index.php?threads/a-app-for-empty-closets.474175/
As LostInDaydreams said, this has been suggested in the past. It is something we ideally would love to have and utilize, but the resources are not currently there to develop it. That being said, our forum's mobile compatibility significantly increased when we transferred to the new forum platform. That's something to be thankful for. Regardless, thanks for your suggestion!