If you want to import your wallet from another app to Quppy, please, record your mnemonic phrase in the previous app. Next, please bush the "+" creation wallet button in the Quppy Wallet app and chose the "Import My Wallet" option. You will need to write down your private key, chose currency and create the imported wallet name. After pushing the "Import" wallet button, your wallet from another app will appear in Quppy Wallet.