Hmm the game is PC only, I haven't used the app before.
No. I was talking about the desktop app I used to DL and install ItchIO games. Not android ones. I don't think ItchIO launched mobile app version. I also use it to update the games I have installed. Think of it like Steam or GOG Galaxy.
Edit: I have actually seen some games like this too, although going back to get update to download the update again is... well tedious for me as I got used to the convenience of the desktop app.