Apple's iCloud service appears to be experiencing instability issues, with many users having reported problems accessing iCloud-based apps and services, including Notes and Find My iPhone.
Apple, in an update to its System Status page, said that iCloud is experiencing widespread outage. Anyway, not all users are facing the problem.
The outage appears to affect Apple software services like iCloud Backup, iCloud Drive and other productivity apps that sync to Apple's cloud platform.
Apple did not comment further on the matter. But several users continue to reinforce the situation through social networks. The issue in question does not seem to be a general crash, but rather instability issues at some points, so not all users felt the problem.
Let's wait for an official statement from Apple.
Source: The Verge