https://www.techradar.com/news/apple-tempts-free-icloud-users-with-one-month-free-trials-of-upgraded-tiers

Apple really wants more people to start ponying up for more iCloud storage, as the company is now offering one-month free trials of all upgraded storage tiers.

First spotted by an AppleInsider reader, the offer appears whenever a free iCloud user (which puts up a paltry 5GB for consumers and 200GB for school-issued devices) attempts to manage their iCloud storage. This offer doesn’t appear to be valid for existing subscribers.