I'm wrapping up an iOS project using Parse and wrote a Core Data <-> Parse "offline mode" / sync engine for it. From a development perspective I'd say it's rela

I'm wrapping up an iOS project using Parse and wrote a Core Data <-> Parse "offline mode" / sync engine for it. From a development perspective I'd say it's relatively painless. I did encounter a "bug" wherein certain queries can't be cached effectively which I solved by using vanilla arrays instead of Parse's PFRelation. No downsides to doing it that way (for this project) but it felt awkward. It would be better to have more consistent caching behavior. I encountered other issues but that one is top of mind at the moment. I have seen downtime during development. It's usually short-lived but it's there nevertheless.