Mystic Frontier
Build a lineup per wave, watch the score as you go, and search your collection for the combination that clears the difficulty. Read cards from a screenshot, share a lineup.
Maple Tools
Build a lineup per wave, watch the score as you go, and search your collection for the combination that clears the difficulty. Read cards from a screenshot, share a lineup.
Keep track of what every character owns. Search the game's equipment, add what is in the bag, and find out later which character it was on.
Follow the characters you play with. The ranking is public, so it takes a name and nothing else: no account for them to make, no code to exchange, and nothing to accept while they are offline.
Follow a character in the official ranking: how far into the level it is, what it earns a day, and how long the next level will take.