Apple's iCloud sync has become so unreliable that developers are removing syncing features from their apps.
Professional Tips to Fix iCloud Sync Problems on iPhone, iPad and Mac
For the past few months, CloudKit syncing has been acting strange. Syncs aren’t completing, data might be out of date, and some users are even seeing the cryptic error message: “Request failed with http status code 503.” The problem has gotten so bad that developers have had to either notify users or disable syncing altogether. So, is your data safe? Should you stop using iCloud altogether? What if you rely on syncing for work?
“While syncing isn't a mission-critical feature for a calculator like PCalc, it's certainly useful to have the same layouts and custom features available across multiple devices,” veteran iOS and Mac app developer James Thomson told Lifewire via direct message.
"For other apps it will definitely have a much bigger impact. Different people are running into different issues. I just see really long sync times."
