Can I Use CloudKit On Android Or Web-based App?
Answer : Yes you can. Apple provides CloudKit JS, specifically designed for web services. I don't know much about Android, but I'm pretty sure it'll be not a hard challenge to run JavaScript. Also CloudKit WebServices could be interesting for you. EDIT advice and discussion To give you an honest advice: Better use something "own". I currently work with a custom server on an AWS EC2 instance and am really happy. You could, for example, write a really simple server using Node.js and connect a Mongo DB NoSQL database. CloudKit is actually not more than this. This is really a simple task. I did this before and with some JavaScript experience and a few days Node exercises it is absolutely feasible; you'll write really nice servers very quickly. In the end, when dealing with more customers, CloudKit will be more expensive, actually. And if you, why ever, must move to a different service, you will have trouble with CK, because you are not able t...