Buy Umamusume: Pretty Derby Accounts

SSR support cards are the core of the value, and fully limit-broken copies are worth far more than single copies. Owned trainees, particularly limited ones, and a stock of Carats for future banners add to it. Strong parents for inheritance are useful for training but secondary.

Each listing states the version. The Global version and the Japanese version are separate games with separate data, so an account from one does not work in the other. The Japanese version also has more content released, which affects what a roster can contain.

Umamusume uses a Data Link: you enter the Trainer ID and the link password on your device to pull the data. After the transfer, set a new link password so the previous holder cannot link it again. Note that paid Carats can be tied to the platform they were bought on.

Yes, the Global version runs on iOS, Android and Steam, and the Data Link lets you use the same save across them. Linking onto a device that already has progress overwrites that device's data, so use a clean install or a device you do not need.