Coupon is PASS1MONTH.
NordPass is generally a free password manager but they have paid premium service too which I got free of charge for a month with coupon PASS1MONTH.
You will have to manualy apply the coupon in the checkout to redeem the free month, here's a screenshot where to apply it:
From their website: With NordPass, store your passwords in the cloud, access them on desktop, mobile, or your favorite browser. All encrypted on your device, for your eyes only.