It's way different scenario from the end-user perspective though:
Black Market, no app scenario:
Have to run through ALL expansions, grab one of a card, play a game with it, then sort them and put them ALL back
Black Market, app scenario:
Grab the app, whenever you choose a card - grab that expansion box and pull out the card - they are easy to find because boxes are well organized. In practice, rarely anyone buys a whole lot from Black Market, so you take these couple of cards back to their boxes with much less effort.
Ruins, no app scenario
You have to grab this big deck of cards, but it's already assembled together. There's no bustle around every box and cleanup is much easier, it's just putting all ruins back into one deck.
Ruins, app scenario:
You have to keep your ruins organized into 5 separate piles, either all the time or sort them before the game. The only thing we get in return is no shuffling of a massive deck.
We have a black market shuffler already. Ruins behave in much the same way - maybe a Ruins shuffler would be useful.