You can import a wallet from the start screen of the app if this is the first launch or if there are no wallets in the app. 

Click on the IMPORT button. You will be prompted to import the wallet with a private key and a transport PIN or with a mnemonic phrase. To import a wallet with a mnemonic phrase, select WITH MNEMONIC PHRASE. 

Enter the phrase in the window that pops up. Once it's done, click on the OK button. If you enter everything correctly, a notification will appear informing you about successfully completed transaction: 

You can also initiate the wallet import from the SETTINGS menu. Click on the SETTINGS icon in the bottom menu of the app and select Ultima Wallet Import from the list.

Please note that if you decide to perform the import, your current wallet in the app will be deleted. 

If you agree, confirm the wallet import by clicking on the CONTINUE button