It's pretty clearly key-logging and on top of that they've had poor security in the past which is not great when they're key-logging everything you type.

Personally I can't say I took the high ground though I just blocked swiftkey with a firewall and figure that's good enough for me.

pretty clearly? Got a source or anything to back that up?

I researched a bit and apparently they had a bug which made the cloud sync leak the personal data of others: https://www.theverge.com/platform/amp/2016/7/29/12326152/swi...

Cloud sync is opt in and I don't know why anyone in their right mind would enable it...

That being said, using a closed source application packed with features (also known as "attack surface") as your main input method clearly isn't ideal.

Well, I do cloud-sync but it's super helpful. I don't know if SK would be SK without cloud-sync.

How else does it know what to predict without logging what keys you press?

yeah and that's why i block it assess to internet using afwall+