I love playing a certain fantasy card game based on my favourite book (also films and now TV series..)
Even though my eyesight is not terrible, it's bad enough that I have often found myself taking photographs of my cards to be able to zoom in to read the small writing on them. So I had lots and lots of photos of my cards on my iPad and iPhone which I wanted to organise. I thought it would be great if there was a dedicated app for this, but I couldn't find one so I started making one. And LOTC just grew from there.
Using Lord of the Cards you can create multiple arbitrary decks and assign whichever of your cards you want to them - great for deckbuilding!
You can import and export your card and deck data, so you could share them (although not the pictures) with others.
That stuff is free.
If you take the paid subscription option, you can create game setups or 'virtual tabletops' using card areas, decks, tokens, token pools, counters and dice. You can then draw cards from the decks and move them to the areas - discard them, exhaust them, move them around, put tokens on them, attach other cards to them, remove them completely - all the things you need to do when playing a card game. One of the cool things about this feature is that you can manage multiple games with the same cards... which you can't do 'in real life'.
You can recreate the play area for your favourite game and effectively play it on your phone or tablet. Or at least manage the cards on it. You can easily leave a game in progress and come back to it. You can duplicate a game to save it at a certain point. LOTC keeps a log of all the actions in each game too for review afterwards perhaps.
I tried to make LOTC flexible enough that it could be used with any card-based games. I've tested it with all the main ones, but of course I use it most for my favourite game.
You can also use LOTC to manage the card, token and counter elements of other tabletop games. There's a famous one which is consistently voted the best game ever (G**ven), but it requires a lot of table space to play. It also involves a lot of little decks of cards which have to be frequently switched and shuffled. LOTC makes that easier and also frees up a lot of table space. Some games have a lot of different components which can be hard to keep track of on the table. I think LOTC offers some relief for that.
Plus of course you can still zoom in on cards and read the small writing ;)