How to invite friends with the help of invite-code
To invite friends you need to tap on in Nim Account section or find the corresponding field in the Settings field. Copy your invite-code by tapping on it and give it to someone you know, or share it as a link by tapping on "SHARE PROMO CODE". For each user registered through your invitation you get 2880 nims, and the user you invited gets 1440 nims.
Make sure that VPN is turned off on your device, otherwise the invite-code may appear incorrectly or not appear at all.
Also, by inviting friends using a QR code, you can get 5760 nims. You can find the code by swiping the text cards of your Temple till the very end or by going to the Nim account section, "Get more", and tapping the button in the upper right corner.
Or by clicking on the corresponding offer on the Main screen/Temple.
A QR code can be scanned with any QR scanner that can be easily downloaded from the Play Market or the AppStore.