DarthCoin on Nostr: I didn't tried that scenario. As far I know the tokens are on your device, not on ...

I didn't tried that scenario. As far I know the tokens are on your device, not on their server.
So maybe you can "import" your mint seed into another app but not sure about the tokens you already had.
In MinibitsCash (npub1kva…tkzv) you can use multiple mints.